The Social Gangster

By Arthur B. Reeve

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Title: The Social Gangster

Author: Arthur B. Reeve

Illustrator: Will Foster

Release Date: August 19, 2010 [EBook #33466]

Language: English


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                           THE SOCIAL GANGSTER

                         THE CRAIG KENNEDY SERIES

                           BY ARTHUR B. REEVE


FRONTISPIECE BY WILL FOSTER

HARPER & BROTHERS PUBLISHERS
NEW YORK AND LONDON

Copyright, 1916, by HARPER & BROTHERS
Printed in the United States of America


[Illustration: JUST BEFORE WE WERE OFF A TELEGRAM CAME TO HER, WHICH SHE
READ AND HASTILY STUFFED INTO A POCKET OF HER RIDING HABIT]




CONTENTS


I. THE SOCIAL GANGSTER

II. THE CABARET ROUGE

III. THE FOX HUNT

IV. THE TANGO THIEF

V. THE "THÉ DANSANT"

VI. THE SERUM DIAGNOSIS

VII. THE DIAMOND QUEEN

VIII. THE ANESTHETIC VAPORIZER

IX. THE TWILIGHT SLEEP

X. THE SIXTH SENSE

XI. THE INFERNAL MACHINES

XII. THE SUBMARINE BELL

XIII. THE SUPER-TOXIN

XIV. THE SECRET AGENTS

XV. THE GERM OF ANTHRAX

XVI. THE SLEEPMAKER

XVII. THE INTER-URBAN HANDICAP

XVIII. THE TOXIN OF FATIGUE

XIX. THE X-RAY DETECTIVE

XX. THE MECHANICAL CONNOISSEUR

XXI. THE RADIOGRAPH WITNESS

XXII. THE ABSOLUTE ZERO

XXIII. THE VACUUM BOTTLE

XXIV. THE SOLAR PLEXUS

XXV. THE DEMON ENGINE

XXVI. THE ELECTROLYSIS CLEW

XXVII. THE PERPETUAL MOTION MACHINE

XXVIII. THE CANCER HOUSE

XXIX. THE QUACK DOCTORS

XXX. THE FILTERABLE VIRUS

XXXI. THE VOODOO MYSTERY

XXXII. THE FLUORISCINE TEST

XXXIII. THE RESPIRATION CALORIMETER

XXXIV. THE EVIL EYE

XXXV. THE BURIED TREASURE

XXXVI. THE WEED OF MADNESS




THE SOCIAL GANGSTER




CHAPTER I

THE SOCIAL GANGSTER


"I'm so worried over Gloria, Professor Kennedy, that I hardly know what
I'm doing."

Mrs. Bradford Brackett was one of those stunning women of baffling age
of whom there seem to be so many nowadays. One would scarcely have
believed that she could be old enough to have a daughter who would worry
her very much.

Her voice trembled and almost broke as she proceeded with her story,
and, looking closer, I saw that, at least now, her face showed marks of
anxiety that told on her more than would have been the case some years
before.

At the mention of the name of Gloria Brackett, I saw that Craig was
extremely interested, though he did not betray it to Mrs. Brackett.
Already, with my nose for news I had scented a much bigger story than
any that had been printed. For the Bracketts had lately been more or
less in the news of the day.

Choking back a little suppressed sob in her throat, Mrs. Brackett took
from a delicate gold mesh bag and laid on the desk before Kennedy a
small clipping from the "Lost and Found" advertisements in the _Star_.
It read:

     "REWARD of $10,000 and absolutely no questions asked for the
     return of a diamond necklace of seventy-one stones which
     disappeared from a house at Willys Hills, Long Island, last
     Saturday or Sunday.

     "LA RUE & CO., Jewelers,
     "---- Fifth Avenue."

I recognized the advertisement as one that had occasioned a great deal
of comment on the _Star_, due to its peculiar nature. It had been a
great mystery, perhaps much more so than if the advertisement had been
worded and signed in the usual way.

I knew also that the advertisement had created a great furore of
excitement and gossip at the fashionable North Shore Hunt Club of which
Bradford Brackett was Master of Fox Hounds.

"At first," explained Mrs. Brackett nervously, "La Rue & Co. were able
to keep the secret. They even refused to let the police take up the
case. But as public interest in the advertisement increased at last the
secret leaked out--at least that part of it which connected our name
with the loss. That, however, seemed only to whet curiosity. It left
everybody wondering what was back of it all. That's what we've been
trying to avoid--that sort of publicity."

She paused a moment, but Kennedy said nothing, evidently thinking that
the best safety valve for her overwrought feelings would be to let her
tell her story in her own way.

"Why, you know," she resumed rapidly, to hide her agitation, "the most
ridiculous things have been said. Some people have even said that we
lost nothing at all, that it was all a clever attempt at notoriety, to
get our names in the papers. Some have said it was a plan to collect the
burglary insurance. But we are wealthy. They didn't stop to think how
inconceivable that was. We have nothing to lose, even if the necklace is
never heard of again."

For the moment her indignation had got the better of her worry. Most
opinions, I recalled, had been finally that the disappearance was mixed
up with some family affairs. At any rate, here was to be the real story
at last. I dissembled my interest. Mrs. Brackett's indignation was
quickly succeeded by the more poignant feelings that had brought her to
Kennedy.

"You see," she continued, now almost sobbing, "it is really all, I fear,
my own fault. I didn't realize that Gloria was growing so fast and so
far out of my life. I've let her be brought up by governesses and
servants. I've sent her to the best schools I could find. I thought it
was all right. But now, too late, I realize that it is all wrong. I
haven't kept close enough to her."

She was rattling on in this disjointed manner, getting more and more
excited, but still Kennedy made no effort to lead the conversation.

"I didn't think Gloria was more than a child. But--why, Mr. Kennedy,
she's been going, I find, to these afternoon dances in the city and out
at a place not far from Willys Hills."

"What sort of places?" prompted Kennedy.

"The Cabaret Rouge," answered Mrs. Brackett, flashing at us a look of
defiance that really masked fear of public opinion.

I knew of the place. It had an extremely unsavory reputation. In fact
there were two places of the same name, one in the city and the other
out on Long Island.

Mrs. Brackett must have seen Kennedy and me exchange a look askance at
the name.

"Oh, it's not a question of morals, alone," she hastened. "After all,
sometimes common sense and foolishness are fair equivalents for right
and wrong."

Kennedy looked up quickly, genuinely surprised at this bit of worldly
wisdom.

"When women do stupid, dangerous things, trouble follows," she
persisted, adding, "if not at once, a bit later. This is a case of it."

One could not help feeling sorry for the woman and what she had to face.

"I had hoped, oh, so dearly," she went on a moment later, "that Gloria
would marry a young man who, I know, is devoted to her, an Italian of
fine family, Signor Franconi--you must have heard of him--the inventor
of a new system of wireless transmission of pictures. But with such a
scandal--how can we expect it? Do you know him?"

"Not personally, though I have heard of him," returned Kennedy briefly.

Both Craig and myself had been interested in reports of his invention,
which he called the "Franconi Telephote," by which he claimed to be able
to telegraph either over wires or by wireless light and dark points so
rapidly and in such a manner as to deceive the eye and produce at the
receiving end what amounted to a continuous reproduction of a picture
at the transmitting end. At least, in spite of his society leanings,
Franconi was no mere dilettante inventor.

"But--the necklace," suggested Craig, after a moment, for the first time
interrupting the rather rambling trend of Mrs. Brackett's story, "what
has this all to do with the necklace?"

She looked at him almost despairingly. "I don't really care for a
thousand such necklaces," she cried. "It is my daughter--her good
name--her--her safety!"

Suddenly she had become almost hysterical as she thought of the real
purpose of her visit, which she had not yet been able to bring herself
to disclose even to Kennedy. Finally, with an effort, she managed to
control herself and go on.

"You see," she said in a low tone, almost as if she were confessing some
fault of her own, "Gloria has been frequenting these--_recherché_
places, without my knowledge, and there she has become intimate with
some of the fastest of the fast set.

"You ask about the necklace. I don't know, I must admit. Has some one of
her friends taken advantage of her to learn our habits and get into the
house and get it? Or, have they put her up to getting it?"

The last query was wrung from her as if by main force. She could not
even breathe it without a shudder. "When the necklace was stolen," she
added tremulously, "it must have been an inside job, as you detectives
call it. Mr. Brackett and I were away at the time at a week-end party.
We supposed Gloria was visiting some friends in the city. But since
then we have learned that she motored out with some of her dance-crazed
acquaintances to the Cabaret Rouge, not far from Willys Hills. It must
have been taken then--by some of them."

The recital to comparative strangers, even though they were to be
trusted to right the wrong, was more than she could bear. Mrs. Brackett
was now genuinely in tears, her shoulders trembling under the emotion,
as she bowed her head. Her despair and self-accusation would really have
moved anyone, much less were needed to enlist Kennedy. He said nothing,
but his look of encouragement seemed to nerve her up again to go on. She
forced back her feelings heroically.

"We put the advertisement that way because--well, now you understand
why," she resumed; then anticipating our question, added, "But there has
been no response."

I knew from her tone that even to herself she would not admit that
Gloria might have been guilty. Yet subconsciously it must have been in
her mind and she knew it was in ours. Her voice broke again.

"Mr. Brackett has repeatedly ordered Gloria to give up her fast
acquaintances. But she defies him. Even to my pleadings she has turned a
deaf ear."

It was most pathetic to watch the workings of the mother's face as she
was forced to say this of her daughter. All thought of the necklace was
lost, now.

"I--I want my daughter back," she almost wailed.

"Who are these rapid youngsters?" asked Craig gently.

"I don't know all of them," she replied. "There is young Rittenhouse
Smith; he is one. The Rittenhouse Smiths, you know, are a very fine
family. But young 'Ritter,' as the younger set call him, is wild.
They've had to cut his allowance two or three times, I believe. Another
of them is Rhinelander Brown. I don't think the Browns have much money,
but it is a good family. Oh," she added with a faint attempt at a smile,
"I'm not the only mother who has heart-aches. But the worst of it is
that there are some professionals with whom they go--a dancer, Rex Du
Mond, and a woman named Bernice Bentley. I don't know any more of them,
but I presume there is a regular organization of these social
gangsters."

"Did Signor Franconi--ever go with them?" asked Craig.

"Oh, mercy, no," she hastened.

"And they can't seem to break the gang up," ruminated Craig, evidently
liking her characterization of the group.

She sighed deeply and wiped away another tear. "I've done what I could
with Gloria. I've cut her allowance--but it has done no good. I'm losing
my hold on her altogether. You--you will help me--I mean, help Gloria?"
she asked eagerly, leaning forward in an appeal which must have cost her
a great deal, so common is the repression of such feelings in women of
her type.

"Gladly," returned Kennedy heartily. "I will do anything in my power."

Proud though she was, Mrs. Brackett could scarcely murmur her thanks.

"Where can I see Gloria?" asked Kennedy finally.

She shook her head. "I can't say. If you want to, you may see her
tomorrow, though, at the drag hunt of the club. My husband says he is
not going to take Gloria's actions without a protest. So he has
peremptorily ordered her to attend the meet of the Hunt Club. We thought
it would get her away, at least for a time, from her associates, though
I must say I can't be sure that she will obey."

I thought I understood, partly at least. Bradford Brackett's election as
M. F. H. had been a crowning distinction in his social career and he did
not propose to have Gloria's escapades spoil the meet for him. Perhaps
he thought this as good an occasion as any to use his power to force her
back into the circle to which she rightfully belonged.

Mrs. Brackett had risen. "How can I ever thank you?" she exclaimed,
extending her hand impulsively. "I know nothing has been changed--yet.
But already I feel better."

"I shall do what I can; depend on me," reiterated Kennedy modestly. "If
I can do nothing before, I shall be out at the Hunt Club
tomorrow--perhaps I shall be there anyhow."

"This is a most peculiar situation," I remarked a few minutes later, as
Mrs. Brackett was whisked away from the laboratory door in her motor.

"Indeed it is," returned Kennedy, pacing up and down, his face wrinkled
with thought. "I don't know whether I feel more like a detective or a
spiritual adviser." He pulled out his watch. "Half-past four," he
considered. "I'd like to have a look at that Cabaret Rouge here in
town."




CHAPTER II

THE CABARET ROUGE


It was a perfect autumn afternoon, one of those days when one who is
normal feels the call to get out of doors and enjoy what is left of the
fine weather before the onset of winter. We strode along in the bracing
air until at last we turned into Broadway at the upper end of what might
be called "Automobile Row." Motor cars and taxicabs were buzzing along
in an endless stream, most of them filled with women, gowned and
bonneted in the latest mode.

Before the garish entrance of the Cabaret Rouge they seemed to pile up
and discharge their feminine cargoes. We entered and were quickly
engulfed in the tide of eager pleasure seekers. A handsome and judicious
tip to the head waiter secured us a table at the far end of a sort of
mezzanine gallery, from which we could look down over a railing at the
various groups at the little white tables below. There we sat, careful
to spend the necessary money to entitle us to stay, for to the average
New Yorker the test seems to be not so much what one is getting for it
as how much money is spent when out for a "good time."

Smooth and glittering on the surface, like its little polished dancing
floor in the middle of the squares of tables downstairs, the Cabaret
Rouge, one could see, had treacherous undercurrents unsuspected until an
insight such as we had just had revealed them.

The very atmosphere seemed vibrant with laughter and music. A string
band played sharp, staccato, highly accentuated music, a band of negroes
as in many of the showy and high-priced places where a keen sense of
rhythm was wanted. All around us women were smoking cigarettes.
Everywhere they were sipping expensive drinks. Instinctively one felt
the undertow in the very atmosphere.

I wondered who they were and where they all came from, these expensively
dressed, apparently refined though perhaps only veneered girls, whirling
about with the pleasantest looking young men who expertly guided them
through the mazes of the fox-trot and the canter waltz and a dozen other
steps I knew not of. This was one of New York's latest and most approved
devices to beguile the languid afternoons of ladies of leisure.

"There she is," pointed out Kennedy finally. "I recognize her from the
pictures I've seen."

I followed the direction of his eyes. The music had started and out on
the floor twisting in and out among the crowded couples was one pair
that seemed to attract more attention than the rest. They had come from
a gay party seated in a little leather cozy corner like several about
the room, evidently reserved for them, for the cozy corners seemed to be
much in demand.

Gloria was well named. She was a striking girl, not much over nineteen
surely, tall, lissome, precisely the figure that the modern dances must
have been especially designed to set off. I watched her attentively. In
fact I could scarcely believe the impression I was gaining of her.

Already one could actually see on her marks of dissipation. One does not
readily think of a girl as sowing her wild oats. Yet they often do. This
is one of the strange anomalies of the new freedom of woman. A few years
ago such a place would have been neither so decent nor attractive. Now
it was superficially both. To it went those who never would have dared
overstep the strictly conventional in the evil days when the reformer
was not abroad in the land.

I watched Gloria narrowly. Clearly here was an example of a girl
attracted by the glamor of the life and flattery of its satellites. What
the end of it all might be I preferred not to guess.

Craig was looking about at the variegated crowd. Suddenly he jogged my
elbow. There, just around the turn of the railing of the gallery, sat a
young man, dark of hair and eyes, of a rather distinguished foreign
appearance, his face set in a scowl as he looked down on the heads of
the dancers. One could have followed the tortuous course of Gloria and
her partner by his eyes, which the man never took off her, even
following her back to the table in the corner when the encore of the
dance was finished.

The young man's face at least was familiar to me, though I had not met
him. It was Signor Franconi, quietly watching Gloria and her gay party.

After a few moments, Craig rose, paid his check, and moved over to the
table where Franconi was sitting alone. He introduced himself and
Franconi, with easy politeness, invited us to join him.

I studied the man's face attentively. Signor Franconi was still young,
in spite of the honors that had been showered on him for his many
inventions. I had wondered before why such a man would be interested in
a girl of Gloria's evident type. But as I studied him I fancied I
understood. To his serious mind it was just the butterfly type that
offered the greatest relief. An intellectual woman would have been
merely carrying into another sphere the problems with which he was more
than capable of wrestling. But there was no line of approval in his fine
face of the butterfly and candle-singeing process that was going on
here. I must say I heartily liked him.

"What are you working on now?" asked Kennedy as a preliminary step to
drawing him out against the time when we might become better acquainted
and put the conversation on a firmer basis.

"A system of wireless transmission of pictures," he returned
mechanically. "I think I have vastly improved the system of Dr. Korn.
You are familiar with it, I presume?"

Kennedy nodded. "I have seen it work," he said simply.

That telephotograph apparatus, I remembered, depended on the ability of
the element selenium to vary the strength of an electric current passing
through it in proportion to the brightness with which the selenium is
illuminated.

"That system," he resumed, speaking as though his mind was not on the
subject particularly just now, "produces positive pictures at one end of
the apparatus by the successive transmission of many small parts
separately. I have harnessed the alternating current in a brand-new way,
I think. Instead of prolonging the operation, I do it all at once,
projecting the image on a sheet of tiny selenium cells. My work is
done. Now the thing to do is to convince the world of that."

"Then you have the telephote in actual operation?" asked Kennedy.

"Yes," he replied. "I have a little station down on the shore of the
south side of the island." He handed us a card on which he wrote the
address at South Side Beach. "That will admit you there at any time, if
I should not be about. I am testing it out there--have several
instruments on transatlantic liners. We think it may be of use in
war--sending plans, photographs of spies--and such things."

He stopped suddenly. The music had started again and Gloria was again
out on the dancing floor. It was evident that at this very important
time in his career Franconi's mind was on other things.

"Everyone seems to become easily acquainted with everyone else here,"
remarked Craig, bending over the rail.

"I suppose one cannot dance without partners," returned Franconi
absently.

We continued to watch the dancers. I knew enough of these young fellows,
merely by their looks, to see that most of them were essential replicas
of one type. Certainly most of them could have qualified as social
gangsters, without scruples, without visible means of support, without
character or credit, but not without a certain vicious kind of ambition.

They seemed to have an unlimited capacity for dancing, freak foods, joy
rides, and clothes. Clothes were to them what a jimmy is to a burglar.
Their English coats were so tight that one wondered how they bent and
swayed without bursting. Smart clothes and smart manners such as they
affected were very fascinating to some women.

"Who are they all, do you suppose?" I queried.

"All sorts and conditions," returned Kennedy. "Wall Street fellows whose
pocketbooks have been thinned by dull times on the Exchange; actors out
of engagements, law clerks, some of them even college students. They
seem to be a new class. I don't think of any other way they could pick
up a living more easily than by this polite parasitism. None of them
have any money. They don't get anything from the owner of the cabaret,
of course, except perhaps the right to sign checks for a limited amount
in the hope that they may attract new business. It's grafting, pure and
simple. The women are their dupes; they pay the bills--and even now and
then something for 'private lessons' in dancing in a 'studio.'"

Franconi was dividing his attention between what Kennedy was saying and
watching Gloria and her partner, who seemed to be a leader of the type I
have just described, tall and spare as must be the successful dancing
men of today.

"There's a fellow named Du Mond," he put in.

"Who is he?" asked Craig, as though we had never heard of him.

"To borrow one of your Americanisms," returned Franconi, "I think he's
the man who puts the 'tang' in tango. From what I hear, though, I think
he borrows the 'fox' from fox-trot and plucks the feathers from the
'lame duck.'"

Kennedy smiled, but immediately became interested in a tall blonde girl
who had been talking to Du Mond just before the dancing began. I noticed
that she was not dancing, but stood in the background most of the time
giving a subtle look of appraisal to the men who sat at tables and the
girls who also sat alone. Now and then she would move from one table to
another with that easy, graceful glide which showed she had been a
dancer from girlhood. Always after such an excursion we saw other
couples who had been watching in lonely wistfulness, now made happy by a
chance to join the throng.

"Who is that woman?" I asked.

"I believe her name is Bernice Bentley," replied Franconi. "She's
the--well, they call her the official hostess--a sort of introducer.
That's the reason why, as you observed, there is no lack of friendliness
and partners. She just arranges introductions, very tactfully, of
course, for she's experienced."

I regarded her with astonishment. I had never dreamed that such a thing
was possible, even in cosmopolitan New York. What could these women be
thinking of? Some of them looked more than capable of taking care of
themselves, but there must be many, like Gloria, who were not. What did
they know of the men, except their clothes and steps?

"Soft shoe workers, tango touts," muttered Kennedy under his breath.

As we watched we saw a slender, rather refined-looking girl come in and
sit quietly at a table in the rear. I wondered what the official
introducer would do about her and waited. Sure enough, it was not long
before Miss Bentley appeared with one of the dancing men in tow. To my
surprise the "hostess" was coldly turned down. What it was that happened
I did not know, but it was evident that a change had taken place.
Unobtrusively Bernice Bentley seemed to catch the roving eye of Du Mond
while he was dancing and direct it toward the little table. I saw his
face flush suddenly and a moment later he managed to work Gloria about
to the opposite side of the dancing floor and, though the music had not
stopped, on some pretext or other to join the party in the corner again.

Gloria did not want to stop dancing, but it seemed as if Du Mond
exercised some sort of influence over her, for she did just as he
wished. Was she really afraid of him? Who was the little woman who had
been like a skeleton at a feast?

Almost before we knew it, it seemed that the little party had tired of
the Cabaret Rouge. Of course we could hear nothing, but it seemed as if
Du Mond were proposing something and had carried his point. At any rate
the waiter was sent on a mysterious excursion and the party made as
though they were preparing to leave.

Little had been said by either Franconi or ourselves, but it was by a
sort of instinct that we, too, paid our check and moved down to the coat
room ahead of them. In an angle we waited, until Gloria and her party
appeared. Du Mond was not with them. We looked out of the door. Before
the cabaret stood a smart hired limousine which was evidently Gloria's.
She would not have dared use her own motor on such an excursion.

They drove off without seeing us and a moment later Du Mond and Bernice
Bentley appeared.

"Thank you for the tip," I heard him whisper. "I thought the best thing
was to get them away without me. I'll catch them in a taxi later.
You're off at seven? Ritter will call for you? Then we'll wait and all
go out together. It's safer out there."

Just what it all meant I could not say, but it interested me to know
that young Ritter Smith and Bernice Bentley seemed on such good terms.
Evidently the gay party were transferring the scene of their gayety to
the country place of the Cabaret Rouge. But why?

We parted at the door with Franconi, who repeated his invitation to
visit his shop down at the beach.

I started to follow Franconi out, but Kennedy drew me back. "Why did you
suppose I let them go?" he explained under his breath, as we retreated
to the angle again. "I wanted to watch that little woman who came in
alone."

We had not long to wait. Scarcely had Du Mond disappeared when she came
out and stood in the entrance while a boy summoned a taxicab for her.

Kennedy improved the opportunity by calling another for us and by the
time she was ready to drive off we were able to follow her. She drove to
the Prince Henry Hotel, where she dismissed the machine and entered. We
did the same.

"By the way," asked Kennedy casually, sauntering up to the desk after
she had stopped to get her keys and a letter, "can you tell me who that
woman was?"

The clerk ran his finger down the names on the register. At last he
paused and turned the book around to us. His finger indicated: "Mrs.
Katherine Du Mond, Chicago."

Kennedy and I looked at each other in amazement. Du Mond was married and
his wife was in town. She had not made a scene. She had merely watched.
What could have been more evident than that she was seeking evidence and
such evidence could only have been for a court of law in a divorce suit?
The possibilities which the situation opened up for Gloria seemed
frightful.

We left the hotel and Kennedy hurried down Broadway, turning off at the
office of a young detective, Chase, whom he used often on matters of
pure routine for which he had no time.

"Chase," he instructed, when we were seated in the office, "you recall
that advertisement of the lost necklace in the _Star_ by La Rue & Co.?"

The young man nodded. Everyone knew it. "Well," resumed Kennedy, "I want
you to search the pawnshops, particularly those of the Tenderloin, for
any trace you can find of it. Let me know, if it is only a rumor."

There was nothing more that we could do that night, though Kennedy found
out over the telephone, by a ruse, that, as he suspected, the country
place of the Cabaret Rouge was the objective of the gay party which we
had seen.




CHAPTER III

THE FOX HUNT


The next day was that of the hunt and we motored out to the North Shore
Hunt Club. It was a splendid day and the ride was just enough to put an
edge on the meet that was to follow.

We pulled up at last before the rambling colonial building which the
Hunt Club boasted as its home. Mrs. Brackett was waiting for us already
with horses from the Brackett stables.

"I'm so glad you came," she greeted us aside. "Gloria is here--under
protest. That young man over there, talking to her, is Ritter Smith.
'Rhine' Brown, as they call him, was about a moment ago--oh, yes, there
he is, coming over on that chestnut mare to talk to them. I wanted you
to see them here. After the hunt, if you care to, I think you might go
over to the Cabaret Rouge out here. You might find out something."

She was evidently quite proud of her handsome daughter and that anything
should come up to smirch her name cut her deeply.

The Hunt Club was a swagger organization, even in these degenerate days
when farmers will not tolerate broken fences and trampled crops, and
when democratic ideas interfere sadly with the follies of the rich. In a
cap with a big peak, a scarlet hunting coat and white breeches with top
boots, Brackett himself made a striking figure of M. F. H.

There were thirty or forty in the field, the men in silk hats. For the
most part one could not see that the men treated Gloria much
differently. But it was evident that the women did. In fact the coldness
even extended to her mother, who would literally have been frozen out if
it had not been for her quasi-official position. I could see now that it
was also a fight for Mrs. Brackett's social life.

As we watched Gloria, we could see that Franconi was hovering around,
unsuccessfully trying to get an opportunity to say a word to her alone.
Just before we were off a telegram came to her, which she read and
hastily stuffed into a pocket of her riding habit.

But that was all that happened and I fell to studying the various types
of human nature, from the beginner who rode very hard and very badly and
made himself generally odious to the M. F. H., to the old seasoned
hunter who talked of the old days of real foxes and how he used to know
all the short cuts to the coverts.

It was a keen, crisp day. Already a man had been over the field pulling
along the ground a little bag of aniseed, and now the hunt was about to
start.

Noses down, sterns feathering zigzag over the ground, sniffing earth and
leaves and grass, the hounds were brought up. One seemed to get a good
whiff of the trail and lifted his head with a half yelp, half whine,
high pitched, frenzied, never-to-be-forgotten. Others joined in the
music. "Gone away!" sounded a huntsman as if there were a real fox. We
were off after them. Drag hounds, however, for the most part run mute
and very fast, so that that picturesque feature was missing. But the
light soil and rail fences of Long Island were ideal for drag hunting.
Nor was it so easy as it seemed to follow. Also there was the spice of
danger, risk to the hunters, the horses and the dogs.

We went for four or five miles. Then there was a check for the
stragglers to come up. Some had fresh mounts, and all of us were glad of
the breathing space while the M. F. H. "held" the hounds.

While we waited we saw that Mrs. Brackett was riding about quickly, as
if something were on her mind. A moment she stopped to speak to her
husband, then galloped over to us.

Her face was almost white. "Gloria hasn't come up with the rest!" she
exclaimed breathlessly.

Already Brackett had told those about him and all was confusion. It was
only a moment when the members of the hunt were scouring the country
over which we had passed, with something really definite to find.

Kennedy did not pause. "Come on, Walter," he shouted, striking out down
the road, with me hard after him.

We pulled up before a road-house of remarkable quaintness and luxury of
appointment, one of the hundreds about New York which the automobile has
recreated. Before it swung the weathered sign: Cabaret Rouge.

To our hurried inquiries the manager admitted that Du Mond had been
there, but alone, and had left, also alone. Gloria had not come there.

A moment later sounds of hoofs on the hard road interrupted us and
Ritter Smith dashed up.

"Just overtook a farmer down the road," he panted. "Says he saw an
automobile waiting at the stone bridge and later it passed him with a
girl and a man in it. He couldn't recognize them. The top was up and
they went so fast."

Together we retraced the way to the stone bridge. Sure enough, there on
the side of the road were marks where a car had pulled up. The grass
about was trampled and as we searched Kennedy reached down and picked up
something white. At least it had been white. But now it was spotted with
fresh blood, as though someone had tried to stop a nose-bleed.

He looked at it more closely. In the corner was embroidered a little
"G."

Evidently there had been a struggle and a car had whizzed off. Gloria
was gone. But with whom? Had the message which we had seen her read at
the start been from Du Mond? Was the plan to elope and so avoid his
wife? Then why the struggle?

Absolutely nothing more developed from the search. An alarm was at once
sent out and the police all over the country notified. There was nothing
to do now but wait. Mrs. Brackett was frantic. But it was not now the
scandal that worried her. It was Gloria's safety.

That night, in the laboratory, Kennedy took the handkerchief and with
the blood on it made a most peculiar test before a strange-looking
little instrument.

It seemed to consist of a little cylinder of glass immersed in water
kept at the temperature of the body. Between two minute wire pincers or
serres, in the cylinder, was a very small piece of some tissue. To the
lower serre was attached a thread. The upper one was attached to a sort
of lever ending in a pen that moved over a ruled card.

"Every emotion," remarked Kennedy as he watched the movement of the pen
in fine zigzag lines over the card, "produces its physiological effect.
Fear, rage, pain, hunger are primitive experiences, the most powerful
that determine the actions of man. I suppose you have heard of the
recent studies of Dr. Walter Cannon of Harvard of the group of
remarkable alterations in bodily economy under emotion?"

I nodded and Kennedy resumed. "On the surface one may see the effect of
blood vessels contracting, in pallor; one may see cold sweat, or the
saliva stop when the tongue cleaves to the roof of the mouth, or one may
see the pupils dilate, hairs raise, respiration become quick, or the
beating of the heart, or trembling of the muscles, notably the lips. But
one cannot see such evidences of emotion if he is not present at the
time. How can we reconstruct them?"

He paused a moment, then resumed. "There are organs hidden deep in the
body which do not reveal so easily the emotions. But the effect often
outlasts the actual emotion. There are special methods by which one can
study the feelings. That is what I have been doing here."

"But how can you?" I queried.

"There is what is called the sympathetic nervous system," he explained.
"Above the kidney there are also glands called the suprarenal which
excrete a substance known as adrenin. In extraordinarily small amounts
adrenin affects this sympathetic system. In emotions of various kinds a
reflex action is sent to the suprarenal glands which causes a pouring
into the blood of adrenin.

"On the handkerchief of Gloria Brackett I obtained plenty of
comparatively fresh blood. Here in this machine I have between these two
pincers a minute segment of rabbit intestine."

He withdrew the solution from the cylinder with a pipette, then
introduced some more of the dissolved blood from the handkerchief. The
first effect was a strong contraction of the rabbit intestine, then in a
minute or so the contractions became fairly even with the base line on
the card.

"Such tissue," he remarked, "is noticeably affected by even one part in
over a million of adrenin. See. Here, by the writing lever, the
rhythmical contractions are recorded. Such a strip of tissue will live
for hours, will contract and relax beautifully with a regular rhythm
which, as you see, can be graphically recorded. This is my adrenin
test."

Carefully he withdrew the ruled paper with its tracings.

"It's a very simple test after all," he said, laying beside this tracing
another which he had made previously. "There you see the difference
between what I may call 'quiet blood' and 'excited blood.'"

I looked at the two sets of tracings. Though they were markedly
different, I did not, of course, understand what they meant. "What do
they show to an expert?" I asked, perplexed.

"Fear," he answered laconically. "Gloria Brackett did not go
voluntarily. She did not elope. She was forced to go!"

"Attacked and carried off?" I queried.

"I did not say that," he replied. "Perhaps our original theory that her
nose was bleeding may be correct. It might have started in the
excitement, the anger and fear at what happened, whatever it was.
Certainly the amount of adrenin in her blood shows that she was laboring
under strong enough emotion."

Our telephone rang insistently and Kennedy answered it. As he talked,
although I could hear only one side of the conversation, I knew that the
message was from Chase and that he had found something important about
the missing necklace.

"What was it?" I asked eagerly as he hung up the receiver.

"Chase has traced the necklace," he reported; "that is, he has
discovered the separate stones, unset, pawned in several shops. The
tickets were issued to a girl whose description exactly fits Gloria
Brackett."

I could only stare at him. What we had all feared had actually taken
place. Gloria must have taken the necklace herself. Though we had feared
it and tried to discount it, nevertheless the certainty came as a shock.

"Why should she have taken it?" I considered.

"For many possible reasons," returned Kennedy. "You saw the life she was
leading. Her own income probably went to keeping those harpies going.
Besides, her mother had cut her allowance. She may have needed money
very badly."

"Perhaps they had run her into debt," I agreed, though the thought was
disagreeable.

"How about that other little woman we saw?" suggested Kennedy. "You
remember how Gloria seemed to stand in fear of Du Mond? Who knows but
that he made her get it to save her reputation? A girl in Gloria's
position might do many foolish things. But to be named as co-respondent,
that would be fatal."

There was not much comfort to be had by either alternative, and we sat
for a moment regarding each other in silence.

Suddenly the door opened. Mrs. Brackett entered. Never have I seen a
greater contrast in so short a time than that between the striking
society matron who first called on us and the broken woman now before
us. She was a pathetic figure as Kennedy placed an easy chair for her.

"Why, what's the matter?" asked Kennedy. "Have you heard anything new?"

She did not answer directly, but silently handed him a yellow slip of
paper. On a telegraph blank were written simply the words, "Don't try to
follow me. I've gone to be a war nurse. When I make good I will let you
know. Gloria."

We looked at each other in blank amazement. That was hardly an easy way
to trace her. How could one ever find out now where she was, in the
present state of affairs abroad, even supposing it were not a ruse to
cover up something?

Somehow I felt that the message did not tell the story. Where was Du
Mond? Had he fled, too,--perhaps forced her to go with him when Mrs. Du
Mond appeared? The message did not explain the struggle and the fear.

"Oh, Mr. Kennedy," pleaded Mrs. Brackett, all thought of her former
pride gone, as she actually held out her hands imploringly and almost
fell on her knees, "can't you find her--can't you _do_ something?"

"Have you a photograph of Gloria?" he asked hurriedly.

"Yes," she cried eagerly, reaching into her mesh bag and drawing one
out. "I carry it with me always. Why?"

"Come," exclaimed Kennedy, seizing it. "It occurs to me that it is now
or never that this device of Franconi's must prove that it is some good.
If she really went, she wasted no time. There's just a bare chance that
the telephote has been placed on some of these vessels that are carrying
munitions abroad. Franconi says that he has developed it for its war
value."

As fast as Mrs. Brackett's chauffeur could drive us, we motored down to
South Side Beach and sought out the little workshop directly on the
ocean where Franconi had told us that we should always be welcome.

He was not there, but an assistant was. Kennedy showed him the card that
Franconi had given us.

"Show me how the machine works," he asked, while Mrs. Brackett and I
waited aside, scarcely able to curb our impatience.

"Well," began the assistant, "this is a screen of very minute and
sensitive selenium cells. I don't know how to describe the process
better than to say that the tones of sound, the human voice, have
hundreds of gradations which are transmitted, as you know, by wireless,
now. Gradations of light, which are all that are necessary to produce
the illusion of a picture, are far simpler than those of sound. Here, in
this projector--"

"That is the transmitting part of the apparatus?" interrupted Kennedy
brusquely. "That holder?"

"Yes. You see there are hundreds of alternating conductors and
insulators, all synchronized with hundreds of similar receivers at
the--"

"Let me see you try this photograph," interrupted Kennedy again, handing
over the picture of Gloria which Mrs. Brackett had given him. "Signor
Franconi told me he had the telephote on several outgoing liners. Let me
see if you can transmit it. Is there any way of sending a wireless
message from this place?"

The assistant had shoved the photograph into the holder from which each
section was projected on the selenium cell screen.

"I have a fairly powerful plant here," he replied.

Quickly Kennedy wrote out a message, briefly describing the reason why
the picture was transmitted and asking that any station on shipboard
that received it would have a careful search made of the passengers for
any young woman, no matter what name was assumed, who might resemble the
photograph.

Though nothing could be expected immediately at best, it was at least
some satisfaction to know that through the invisible air waves,
wirelessly, the only means now of identifying Gloria was being flashed
far and wide to all the big ships within a day's distance or less on
which Franconi had established his system as a test.

The telephote had finished its work. Now there was nothing to do but
wait. It was a slender thread on which hung the hope of success.

While we waited, Mrs. Brackett was eating her heart out with anxiety.
Kennedy took the occasion to call up the New York police on long
distance. They had no clew to Gloria. Nor had they been able to find a
trace of Du Mond. Mrs. Du Mond also had disappeared. At the Cabaret
Rouge, Bernice Bentley had been held and put through a third degree,
without disclosing a thing, if indeed she knew anything. I wondered
whether, at such a crisis, Du Mond, too, might not have taken the
opportunity to flee the country.

We had almost given up hope, when suddenly a little buzzer on the
telephote warned the operator that something was coming over it.

"The _Monfalcone_," he remarked, interpreting the source of the
impulses.

"We gathered breathlessly about the complicated instrument as, on a
receiving screen composed of innumerable pencils of light polarized and
acting on a set of mirrors, each corresponding to the cells of the
selenium screen and tuned to them, as it were, a thin film or veil
seemed gradually to clear up, as the telephote slowly got itself into
equilibrium at both ends of the air line. Gradually the face of a girl
appeared.

"Gloria!" gasped Mrs. Brackett in a tone that sounded as if ten years
had been added to her life.

"Wait," cautioned the operator. "There is a written message to follow."

On the same screen now came in letters that Mrs. Brackett in her joy
recognized the message: "I couldn't help it. I was blackmailed into
taking the necklace. Even at the hunt I received another demand. I did
not mean to go, but I was carried off by force before I could pay the
second demand. Now I'm glad of it. Forgive us. Gloria."

"Us?" repeated Mrs. Brackett, not comprehending.

"Look--another picture," pointed Kennedy.

We bent over as the face of a man seemed to dissolve more clearly in
place of the writing.

"Thank God!" exclaimed Mrs. Brackett fervently, reading the face by a
sort of intuition before it cleared enough for us to recognize. "He has
saved her from herself!"

It was Franconi!

Slowly it faded and in its place appeared another written message.

"Recalled to Italy for war service. I took her with me by force. It was
the only way. Civil ceremony in New York yesterday. Religious will
follow at Rome."




CHAPTER IV

THE TANGO THIEF


"My husband has such a jealous disposition. He will never believe the
truth--never!"

Agatha Seabury moved nervously in the deep easy chair beside Kennedy's
desk, leaning forward, uncomfortably, the tense lines marring the beauty
of her fine features.

Kennedy tilted his desk chair back in order to study her face.

"You say you have never written a line to the fellow nor he to you?" he
asked.

"Not a line, not a scrap,--until I received that typewritten letter
about which I just told you," she repeated vehemently, meeting his
penetrating gaze without flinching. "Why, Professor Kennedy, as heaven
is my witness, I have never done a wrong thing--except to meet him now
and then at afternoon dances."

I felt that the nerve-racked society woman before us must be either
telling the truth or else that she was one of the cleverest actresses I
had ever seen.

"Have you the letter here?" asked Craig quickly.

Mrs. Seabury reached into her neat leather party case and pulled out a
carefully folded sheet of note paper.

It was all typewritten, down to the very signature itself. Evidently the
blackmailer had taken every precaution to protect himself, for even if
the typewriting could be studied and identified, it would be next to
impossible to get at the writer through it and locate the machine on
which it was written among the thousands in the city.

Kennedy studied the letter carefully, then, with a low exclamation,
handed it over to me, nodding to Mrs. Seabury that it was all right for
me to see it.

"No ordinary fellow, I'm afraid," he commented musingly, adding, "this
thief of reputations."

I read, beginning with the insolent familiarity of "Dear Agatha."

     "I hope you will pardon me for writing to you," the letter
     continued, "but I find that I am in a rather difficult position
     financially. As you know, in the present disorganized state of
     the stock market, investments which in normal times are good
     are now almost valueless. Still, I must protect those I already
     have without sacrificing them.

     "It is therefore necessary that I raise fifty thousand dollars
     before the end of the week, and I know of no one to appeal to
     but you--who have shared so many pleasant stolen hours with me.

     "Of course, I understand all that you have told me about Mr.
     Seabury and his violent nature. Still, I feel sure that one of
     your wealth and standing in the community can find a way to
     avoid all trouble from that quarter. Naturally, I should prefer
     to take every precaution to prevent the fact of our intimacy
     from coming to Mr. Seabury's knowledge. But I am really
     desperate and feel that you alone can help me.

     "Hoping to hear from you soon, I am,
     "Your old tango friend,
     "H. MORGAN SHERBURNE."

I fairly gasped at the thinly veiled threat of exposure at the end of
the note from this artistic blackmailer.

She was watching our faces anxiously as we read.

"Oh," she cried wildly, glancing from one to the other of us, strangers
to whom in her despair she had been forced to bare the secrets of her
proud heart, "he's so clever about it, too. I--I didn't know what to do.
I had only my jewels. I thought of all the schemes I had ever read, of
pawning them, of having paste replicas made, of trying to collect the
burglary insurance, of--"

"But you didn't do anything like that, did you?" interrupted Craig
hastily.

"No, no," she cried. "I thought if I did, then it wouldn't be long
before this Sherburne would be back again for more. Oh," she almost
wailed, dabbing at the genuine tears with her dainty lace handkerchief
while her shoulders trembled with a repressed convulsive sob, "I--I am
utterly wretched--crushed."

"The scoundrel!" I muttered.

Kennedy shook his head at me slowly. "Calling names won't help matters
now," he remarked tersely. Then in an encouraging tone he added, "You
have done just the right thing, Mrs. Seabury, in not starting to pay the
blackmail. The secret of the success of these fellows is that their
victims prefer losing jewelry and money to going to the police and
having a lot of unpleasant notoriety."

"Yes, I know that," she agreed hastily, "but--my husband! If he hears,
he will believe the worst, and--I--I really love and respect
Judson--though," she added, "he might have seen that I liked dancing
and--innocent amusements of the sort still. I am not an old woman."

I could not help wondering if the whole truth were told in her rather
plaintive remark, or whether she was overplaying what was really a minor
complaint. Judson Seabury, I knew from hearsay, was a man of middle age
to whom, as to so many, business and the making of money had loomed as
large as life itself. Competitors had even accused him of being ruthless
when he was convinced that he was right, and I could well imagine that
Mrs. Seabury was right in her judgment of the nature of the man if he
became convinced for any reason that someone had crossed his path in his
relations with his wife.

"Where did you usually--er--meet Sherburne?" asked Craig, casually
guiding the conversation.

"Why--at the Vanderveer--always," she replied.

"Would you mind meeting him there again this afternoon so that I could
see him?" asked Kennedy. "Perhaps it would be best, anyhow, to let him
think that you are going to do as he demands, so that we can gain a
little time."

She looked up, startled. "Yes--I can do that--but don't you think it is
risky? Do you think there is any way I can get free from him? Suppose he
makes a new demand. What shall I do? Oh, Professor Kennedy, you do not,
you cannot know what I am going through--how I hate and fear him."

"Mrs. Seabury," reassured Craig earnestly, "I'll take up your case.
Clever as the man is, there must be some way to get at him."

Sherburne must have exercised a sort of fascination over her, for the
look of relief that crossed her face as Kennedy promised to aid her was
almost painful. As often before, I could scarcely envy Kennedy in his
ready assumption of another's problems that seemed so baffling. It
meant little, perhaps, to us whether we succeeded. But to her it meant
happiness, perhaps honor itself.

It was as though she were catching at a life line in the swirling
current of events that had engulfed her. She hesitated no longer.

"I'll be there--I'll meet him--at four," she murmured, as she rose and
made a hurried departure.

For some time after she had gone, Kennedy sat considering what she had
told us. As for myself, I cannot say that I was thoroughly satisfied
that she had told all. It was not to be expected.

"How do you figure that woman out?" I queried at length.

Kennedy looked at me keenly from under knitted brows. "You mean, do I
believe her story--of her relations with this fellow, Sherbourne?" he
returned, thoughtfully.

"Exactly," I assented, "and what she said about her regard for her
husband, too."

Kennedy did not reply for a few minutes. Evidently the same question had
been in his own mind and he had not reasoned out the answer. Before he
could reply the door buzzer sounded and the colored boy from the lower
hall handed a card to Craig, with an apology about the house telephone
switchboard being out of order.

As Kennedy laid the card on the table before us, with a curt "Show the
gentleman in," to the boy, I looked at it in blank amazement.

It read, "Judson Seabury."

Before I could utter a word of comment on the strange coincidence, the
husband was sitting in the same chair in which his wife had sat less
than half an hour before.

Judson Seabury was a rather distinguished looking man of the solid,
business type. Merely to meet his steel gray eye was enough to tell one
that this man would brook no rivalry in anything he undertook. I foresaw
trouble, even though I could not define its nature.

Craig twirled the card in his fingers, as if to refresh his mind on a
name otherwise unfamiliar. I was wondering whether Seabury might not
have trailed his wife to our office and have come to demand an
explanation. It was with some relief that I found he had not.

"Professor Kennedy," he began nervously, hitching his chair closer,
without further introduction, in the manner of a man who was accustomed
to having his own way in any matter he undertook, "I am in a most
peculiar situation."

Seabury paused a moment, Kennedy nodded acquiescence, and the man
suddenly blurted out, "I--I don't know whether I'm being slowly poisoned
or not!"

The revelation was startling enough in itself, but doubly so after the
interview that had just preceded.

I covered my own surprise by a quick glance at Craig. His face was
impassive as he narrowly searched Seabury's. I knew, though, that back
of his assumed calm, Craig was doing some rapid thinking about the
ethics of listening to both parties in the case. However, he said
nothing. Indeed, Seabury, once started, hurried on, scarcely giving him
a chance to interrupt.

"I may as well tell you," he proceeded, with the air of a man who for
the first time is relieving his mind of something that has been weighing
heavily on him, "that for some time I have not been exactly--er--easy in
my mind about the actions of my wife."

Evidently he had arrived at the conclusion to tell what worried him, and
must say it, for he continued immediately: "It's not that I actually
know anything about any indiscretions on Agatha's part, but,--well,
there have been little things--hints that she was going frequently to
_thés dansants_, and that sort of thing, you know. Lately, too, I have
seen a change in her manner toward me, I fancy. Sometimes I think she
seems to avoid me, especially during the last few days. Then again, as
this morning, she seems to be--er--too solicitous."

He passed his hand over his forehead, as if to clear it. For once he did
not seem to be the self-confident man who had at first entered our
apartment. I noticed that he had a peculiar look, a feeble state of the
body which he was at times at pains to conceal, a look which the doctors
call, I believe, cachectic.

"I mean," he added hastily, as if it might as well be said first as
last, "that she seems to be much concerned about my health, my food--"

"Just what is it that you actually know, not what you fear?" interrupted
Kennedy, perhaps a little brusquely, at last having seen a chance to
insert a word edgewise into the flow of Seabury's troubles, real or
imaginary.

Seabury paused a moment, then resumed with a description of his health,
which, to tell the truth, was by no means reassuring.

"Well," he answered slowly, "I suffer a good deal from such terrible
dyspepsia, Professor Kennedy. My stomach and digestion are all
upset--bad health and growing weakness--pain, discomfort--vomiting after
meals, even bleeding. I've tried all sorts of cures, but still I can
feel that I am still losing health and strength, and, so far, at least,
the doctors don't seem to be doing me much good. I have begun to wonder
whether it is a case for the doctors, after all. Why, the whole thing is
getting on my nerves so that I'm almost afraid to eat," he concluded.

"You have eaten nothing today, then, I am to understand?" asked Craig
when Seabury had finished with his minute and puzzling account of his
troubles.

"Not even breakfast this morning," he replied. "Mrs. Seabury urged me to
eat, but--I--I couldn't."

"Good!" exclaimed Kennedy, much to our surprise. "That will make it just
so much easier to use a test I have in mind to determine whether there
is anything in your suspicions."

He had risen and gone over to a cabinet.

"Would you mind baring your arm a moment?" he asked Seabury.

With a sharp little instrument, carefully sterilized, Craig pricked a
vein in the man's arm. Slowly a few drops of darkened venous blood
welled out. A moment later Kennedy caught them in a sterile test tube
and sealed the tube.

Before our second visitor could start again in retailing his suspicions
which now seemed definitely, in his own mind at least, directed in some
way against Mrs. Seabury, Kennedy skillfully closed the interview.

"I feel sure that the test I shall make will tell me positively, soon,
whether your fears are well grounded or not, Mr. Seabury," he concluded
briefly, as he accompanied the man out into the hall to shake hands
farewell with him at the elevator door. "I'll let you know as soon as
anything develops, but until we have something tangible there is no use
wasting our energies."




CHAPTER V

THE "THE DANSANT"


I felt, however, that Seabury accepted this conclusion reluctantly, in
fact with a sort of mental reservation not to cease activity himself.

The remainder of the forenoon, and for some time during the early
afternoon, Craig plunged into one of his periods of intense work and
abstraction at the laboratory.

It was, indeed, a most unusual and delicate test which he was making.
For one thing, I noticed that he had, in a sterilizer, some peculiar
granular tissue that had been sent to him from a hospital. This tissue
he was very careful to cleanse of blood and then by repeated boilings
prepare for whatever use he had in mind.

As for myself, I could only stand aside and watch his preparations in
silence. Among the many peculiar pieces of apparatus which he had, I
recall one that consisted of a glass cylinder with a siphon tube running
into it halfway up the outside. Inside was another, smaller cylinder.
All about him as he proceeded were glass containers, capillary pipettes,
test tubes, Bunsen burners, and dialyzers of porous parchment paper
whose wrappers described them as "permeable for peptones, but not for
albumins."

Carefully set aside was the blood which he had drawn from Seabury's
veins, allowed to stand till the serum separated out from the clot.
Next he pipetted it into a centrifuge tube and centrifuged it at high
speed, some sixteen thousand revolutions, until the serum was perfectly
clear, with no trace of a reddish tint, nor even cloudy. After that he
drew off the serum into a little tube, covered it with a layer of a
substance called toluol from another sterile pipette, and finally placed
it in an incubator at a temperature of about ninety-eight.

It was well along toward four o'clock when he paused as if some mental
alarm clock had awakened him to another part of the plan of action he
had laid out.

"Walter," he remarked, hastily doffing his stained old laboratory coat,
"I think we'd better drop around to the Vanderveer."

Curious as I had been at the preparations he was making in the
laboratory, I was still glad at even the suggestion of something that my
less learned mind could understand and it was not many seconds before we
were on our way.

Through the lobby of the famous new hostelry we slowly lounged along,
then down a passage into the tea room, where, in the center of a circle
of quaint little wicker chairs and tables, was a glossy dancing floor.

Kennedy selected a table not in the circle, but around an "L,"
inconspicuously located so that we could watch the dancing without
ourselves being watched.

At one end of the room an excellent orchestra was playing. I gazed
about, fascinated. At the dancing tea was represented, apparently, much
wealth--women whose throats and fingers glittered with gold and gems,
men whose very air exuded prosperity--or at least its veneer.

About it all was the glamor of the _risqué_. One felt a sort of
compromising familiarity in this breaking down of old social restraints
through the insidious influence of the tea room, with its accompaniments
of music and dancing.

"I suppose," remarked Craig after we had for some time settled ourselves
and watched the brilliant scene, "that, like many others, Walter, you
have often wondered whether these modern dances are actually as
stimulating as they seem."

I shrugged my shoulders non-committally.

"Well, there is what psychologists might call a real dance neurosis," he
went on, contemplatively, toying with a glass. "In fact few persons can
withstand the physical effect of the peculiar rhythm, the close contact,
and the sinuous movements--at least where, so to speak, the surroundings
are suggestive and the dance becomes less restrained and more sensuous,
as it does often in circumstances like these, often among strangers."

The music had started again and one after another couples seemed to
float past in unhesitating hesitation--dowager and débutante, dandy and
doddering octogenarian.

"Why," he exclaimed, looking out at the whirling kaleidoscope, "here in
the most advanced epoch, people of culture and intelligence frankly say
they are 'wild' for something primitive."

"Still," I objected, "dancing even in the wild, stimulating emotional
manner you see here need not be merely an incitement to love, need it?
May it not be a normal gratification of the love instinct--eroticism
translated into rhythm? Perhaps it may represent sex, but not
necessarily badly."

Kennedy nodded. "Undoubtedly the effect of the dances is in direct ratio
to the sexual temperament of the dancer," he admitted.

He paused and again watched the whirl.

"Does Mrs. Seabury herself understand it?" he mused, only half speaking
to me. "I'm sure that this Sherburne is clever enough to do so, at any
rate."

A hearty round of applause came from the dancers as the music ceased.
None left the floor, however, but remained waiting for the encore
eagerly, scarcely changing the positions in which they had stopped.

"To my mind," Kennedy resumed, with the music, "several things seem
significant. Many people have noticed that after marriage women
generally lose much of their ardor for dancing. I feel that it is an
unsafe matter on which to generalize, but--well--Mrs. Seabury seems not
to have lost it."

"Then," I inquired quickly, "you imply that--she is not really as much
in love with her husband as she would have us think--or, perhaps,
herself believes?"

"Not quite that," he replied doubtfully. "But I am wondering whether
there is such a factor that must be considered."

Before I could answer Kennedy touched my arm. Instinctively I followed
the direction of his eye and saw Mrs. Seabury step out on the floor
across from us. Without a word from Craig, I realized that the man with
her must be Sherburne, our "tango thief."

Fashionably dressed, affable, seemingly superficially, at least, well
educated, tall, graceful, with easy manners, I could not help seeing at
a glance that he was one of the most erotic dancers on the little floor.

As they passed near us, Mrs. Seabury caught Kennedy's eye in momentary
recognition. Her face, flushed with the dance, colored perhaps a shade
deeper, but not noticeably to her partner, who was devoting himself
wholly and skillfully to leading her in a manner that one could see
called forth frequent comment from others, less favored.

As they sat down after this dance and the encore, Craig motioned to the
waiter at our table and whispered to him.

A few moments later, a man whom I had seen around the hotel on my
infrequent visits, but did not know, slipped quietly into a seat beside
Kennedy, even deeper in the shadow of the recess in which we were
sitting.

"Walter, I'd like to have you meet Mr. Dunn, the house detective,"
whispered Kennedy under his breath.

The usual interchange of remarks followed, during which Dunn was
evidently waiting for Kennedy to reveal the real purpose of our visit.

"By the way, Dunn," remarked Craig at length, "who is that fellow--over
there with the woman in blue--the fellow with the heavy braided coat?"

Dunn craned his neck cautiously, then shrugged his shoulders. "I've seen
him here with her before," he remarked. "I don't know him, though. Why?"

Briefly Kennedy sketched such facts of a supposedly hypothetical case as
would be likely to secure an opinion from the house man. Dunn narrowed
his eyes thoughtfully.

"That's rather a ticklish situation, Kennedy," Dunn remarked when Craig
had stated the case, omitting all reference to Seabury's name as well as
his suspicions. "Of course," he went on, "I know we've got to protect
the name of the hotel. And I know we can't have men meeting our women
patrons, doing a gavotte or two--and then fox-trotting them into
blackmail."

Dunn stroked his chin thoughtfully. "You see, we can do a great deal to
suppress card sharps, agents for fake mining stocks, passers of
worthless checks, and confidence men of that sort. But it is not so
simple to thwart the vultures who prey on the gullibility and passions
of the so-called idle rich."

"There must be something you can do to get it on this fellow, though,"
persisted Craig.

"Well," considered the house man, "we have what might be called our
hotel secret service--several men and women operating entirely apart
from the hotel force of detectives who, like myself, are too well known
to clever crooks. Nobody knows them, except myself. There's one--that
girl over there dancing with that middle-aged man who has mail sent here
but doesn't live here. Could they be of use?"

"Just the thing," exclaimed Craig enthusiastically. "Can't you have her
get acquainted--just as a precaution--with that man? His name, by the
way, I understand is Sherburne."

"I'll do it," agreed Dunn, rising unostentatiously.

Just then I happened to glance across the floor and over the heads of
those seated at the tables at a door opposite us. It was my turn hastily
to seize Kennedy's elbow.

"Good God!" I exclaimed involuntarily.

There, in the further doorway of the tea room, stood Judson Seabury
himself!

Without a word, Craig rose and quickly crossed the dancing floor,
stopping before Mrs. Seabury's table. Instead of waiting to be
introduced, he sat down deliberately, as though he had been there all
the time and had just gone out of the room and come back. He did it all
so quickly that he was able in a perfectly natural way to turn and see
that Seabury himself had been watching and now was advancing slowly,
picking his way among the crowded tables.

From around my corner I saw Craig whisper a word or two to Mrs. Seabury,
then rise and meet Seabury less than halfway from the door by which he
had been standing.

The tension of the situation was too much for Mrs. Seabury. Confounded
and bewildered, she fled precipitately, passing within a few feet of my
table. Her face was positively ghastly.

As for Sherburne, he merely sat a moment and surveyed the irate husband
with calm and studied insolence at a safe distance. Then he, too, rose
and turned deliberately on his heel.

Curious to know how Craig would meet the dilemma, I watched eagerly and
was surprised to see Seabury, after a moment's whispered talk, turn and
leave the tea room by the same door through which he had entered.

"What did you do?" I asked, as Craig rejoined me a few moments later.
"What did you say? My hat's off to you," I added in admiration.

"Told him I had trailed her here with one of my operatives, but was
convinced there was nothing wrong, after all," he returned.

"You mean," I asked as the result of Craig's quick thinking dawned on
me, "that you told him Sherburne was _your_ operative?"

Kennedy nodded. "I want to see him, now, if I can," he said simply.




CHAPTER VI

THE SERUM DIAGNOSIS


We paid our check and Kennedy and I sauntered in the direction Sherburne
had taken, finding him ultimately in the cafe, alone. Without further
introduction Kennedy approached him.

"So--you are a detective?" sneered Sherburne superciliously, elevating
his eyebrows just the fraction of an inch.

"Not exactly," parried Kennedy, seating himself beside Sherburne. Then
in a tone as if he were willing to get down, without further
preliminary, to business, seemingly negotiating, he asked: "Mr.
Sherburne, may I ask just what it is on which you base your claim on
Mrs. Seabury? Is it merely meeting her here? If that is so you must know
that it amounts to nothing--now."

The two men faced each other, each taking the other's measure.

"Nothing?" coolly retorted Sherburne. "Perhaps not--in itself.
But--suppose--I--had--"

He said the words slowly, as he fumbled in his fob pocket, then cut them
short as he found what he was looking for. Safely, in the palm of his
hand, he displayed a latch-key, momentarily, then with a taunting smile
dropped it back again into the fob pocket.

"Perhaps she gave it to me--perhaps I was a welcome visitor in her
apartment," he insinuated. "How would she relish having that told to
Mr. Seabury--backed up by the possession of the key?"

I could not help feeling that for the moment Kennedy was checkmated.
Sherburne was playing a desperate game and apparently held the key,
however he got it, as a trump card.

"Thank you," was all that Kennedy said, as he rose. "I wanted to know
how far you could go. Perhaps we can meet you halfway."

Sherburne smiled cynically. "All the way," he said quietly, as we left
the cafe.

In silence Kennedy left the hotel and jumped into a cab, directing the
driver to the laboratory, where he had asked Mrs. Seabury to wait for
him. We found her there, still much agitated.

Hastily Craig explained to her how he had saved the situation, but her
mind was too occupied over something else to pay much attention.

"I--I can't blame you, Professor Kennedy," she cried, choking down a sob
in her voice, "but I have just discovered--he has told me that it is
even worse than I had anticipated."

We were both following her closely, the incident of the latch-key still
fresh in mind.

"Some time ago," she hurried on, "I missed my latch-key. I thought
nothing of it at the time--thought perhaps I had mislaid it. But today
he told me--just after the dance, even while I was making him think I
would pay him the money, because--because I liked him--he told me he had
it. The brute! He must have picked my handbag!"

Her eyes were blazing now with indignation. Yet as she looked at us
both, evidently the recollection of what had just happened came
flooding over her mind, and she dropped her head in her hands in
helpless dismay at the new development.

Craig pulled out his watch hastily. "It is about six, Mrs. Seabury," he
reassured. "Can you be here at, say, eight?"

"I will be here," she murmured pliantly, realizing her own helplessness.

She had scarcely closed the door when Craig seized the telephone, and
hurriedly tried to locate Seabury himself.

"Apparently no trace of him yet," he fumed, as he hung up the receiver.
"The first problem is how to get that key."

Instantly I thought of Dunn's secret service girl. Kennedy shook his
head doubtfully. "I'm afraid there is no time for that," he answered.
"But will you attend to that end of the affair for me, Walter? I have
just a little more work here at the laboratory before I am ready. I
don't care how you do it, but I want you to convey to Sherburne the
welcome news that Mrs. Seabury is prepared to give in, in any way he may
see fit, if he will call her up here at eight o'clock."

Kennedy had already plunged back among his beakers and test tubes, and
with these slender instructions I sallied forth in my quest of
Sherburne. I had little difficulty in locating him and delivering my
message, which he received with a satisfaction that invited assault and
battery and mayhem. However, I managed to restrain myself and rejoin
Craig in the laboratory, shortly after seven o'clock.

I had scarcely had time to assure Kennedy of the success of my mission,
when we were surprised to see the door open and Seabury himself appear.

His face was actually haggard. Whether or not he had believed the
hastily concocted story of Kennedy at the Vanderveer, his mind had not
ceased to work on the other fears that had prompted his coming to us in
the first place.

"I've been trying to locate you all over," greeted Craig.

Seabury heaved a sigh and passed his hand, with its familiar motion,
over his forehead. "I thought perhaps you might be able to find out
something from this stuff," he answered, unwrapping a package which he
was carrying. "Some samples of the food I've been getting. If you don't
find anything in this, I've others I want tested."

As I looked at the man's drawn face, I wondered whether in fact there
might be something in his fears. On the surface, the thing did indeed
seem to place Agatha Seabury in a bad light. At the sight of the key in
Sherburne's possession I had grasped at the straw that he might have
conceived some diabolical plan to get rid of Seabury for purposes of his
own. But then, I reasoned, would he have been so free in showing the key
if he had realized that it might cast suspicion on himself? I was forced
to ask myself again whether she might, in her hysterical fear of
exposure by the adroit blackmailer, have really attempted to poison her
husband.

It was a desperate situation. But Kennedy was apparently ready to meet
it, though he seemed to take no great interest in the food samples
Seabury had just brought.

Instead he seemed to rely wholly on the tests he had already begun with
the peculiar tissue I had seen him boiling and the blood serum derived
from Seabury himself.

Without a word he took three tubes from the incubator, in which I had
seen him place them some time before, and, as they stood in a rack,
indicated them lightly with his finger.

"I think I can clear part of this mystery up immediately," he began,
speaking more to himself than to Seabury and myself. "Here I have a
tested dialyzer in which has been placed a half cubic centimeter of pure
clear serum. Here is another dialyzer with the same amount of serum, but
no tissue, such as Mr. Jameson has seen me place in this first one. Here
is still another with the tissue in distilled water, but no blood serum.
I have placed all the dialyzers in tubes of distilled water and all are
covered with a substance known as toluol and corked to keep them from
contamination."

Kennedy held up before us the three tubes and Seabury gazed on them with
a sort of fascination, scarcely believing that in them in some way might
be contained the verdict on the momentous problem that troubled his mind
and might perhaps mean life or death to him.

Carefully Kennedy took from each tube a few cubic centimeters of the
dialyzate and into each he poured a little liquid from a tiny vial which
I noticed was labelled "Ninhydrin."

"This," he explained as he set down the vial, "is a substance which
gives a colorless solution with water, but when mixed with albumins,
peptones, or amino-acids becomes violet on boiling. Tube number three
must remain colorless. Number two may be violet. Number one may
approximate number two or be more deeply colored. If one and two are
about the same I call my test negative. But if one is more deeply
colored than two, then it is positive. The other tube is the control."

Impatiently we waited as the three tubes simmered over the heat. What
would they show? Seabury's eyes were glued on them, his hand trembling
in the presence of some unknown danger.

Slowly the liquid in the second tube turned to violet. But more rapidly
and more deeply appeared the violet in number one. The test was
positive.

"What is it?" gasped Seabury hoarsely, leaning over close.

"This," exclaimed Kennedy, "is the famous Abderhalden
test--serum-diagnosis--discovered by Professor Emile Abderhalden of
Halle. It rests on the fact that when a foreign substance comes into the
blood, the blood reacts, with the formation of a protective ferment
produced as a result of physiologic and pathologic conditions.

"For instance," he went on, "a certain albumin always produces a certain
ferment. Presence in the blood stream of blood-foreign substances calls
forth a ferment that will digest them and split them into molecules. The
forces of nature form and mobilize directly in the blood serum.

"Let me get this clearly. Albumin cannot pass through the pores of an
animal membrane, since the individual molecules are too large. If,
however, the albumin is broken up by a ferment-action, then the
molecules become small enough to pass through."

Seabury was listening like a man on whom a stunning blow was about to
descend.

"Thus we can tell," proceeded Kennedy, "whether there is such a ferment
in blood serum as would be produced by a certain condition, for when the
ferment is there blood from the individual possessing it will digest a
similar proteid in a dialyzing thimble kept at body temperature.

"Why," cried Kennedy, swept along by the wonder of the thing, "this test
opens up a vista of alluring and extensive possibilities. The human
organism actually diagnoses its own illnesses automatically. It is
infinitely more exact, more rapid, and more certain than all that human
art can attain. Each organ contains special ferments in its cells in the
most subtle way attuned to the molecular condition of the particular
cell substance and with complete indifference to other cells.

"Don't you see? It diagnoses at the very first stage. You take a small
quantity of blood, derive the serum, then introduce a piece of tissue
such as you wish to find out whether it is diseased or not. The thing is
of overwhelming importance. One can discover a condition even before the
organ itself shows it outwardly. It means a new epoch in medicine. As
for me, I call it the new 'police service' of the organism--working with
perfect, scientific accuracy."

"Wh-what do you find?" reiterated Seabury.

"I have made tests for about everything I can suspect," returned
Kennedy, taking the tubes and pouring the liquid from number two into
number one until they were equalized in color, thus testing them, while
we watched every action closely.

"You see," he digressed, "to get the two the same shade I have to dilute
the first by the second. Now, the dialyzers are not permeable to
albumin. Therefore the violet color indicates that the blood serum in
this case contains ferments which the body is making to split up some
foreign substance in the blood, such as I suspected and obtained from
the hospital. The test is positive. Mr. Seabury, how long have you felt
as you say that you do?"

"Several weeks," the man returned weakly.

"That is fortunate," cried Kennedy, "fortunate that it has not been
several months."

He paused, then added the startling statement, "Mr. Seabury, I can find
no evidence here of poison. As a matter of fact, the wonderful
Abderhalden test shows me that you have one of the most common forms of
internal disease that occur for the most part in persons at or after
middle life, about the age of fifty, more common in men than in women--a
disease which taken in time, as it has been revealed by this wonderful
test, may be cured and you may be saved--an incipient cancer of the
stomach."

Kennedy paused a moment and listened. I fancied I heard someone in the
hall. But he went on, "The person whom you suspect of poisoning you--"

There came a suppressed scream from the door, as it was flung open and
Agatha Seabury stood there, staring with fixed, set eyes at Kennedy,
then at her husband. Mechanically I looked at my watch. It was precisely
eight. Kennedy had evidently prolonged the test for a purpose.

"The person whom you suspected," he repeated firmly, "is innocent!"

A moment Agatha stood there, then as the thing dawned on her, she
uttered one cry, "Judson!"

She reeled as Kennedy with a quick step or two caught her.

Seabury himself seemed dazed.

"And I have--" he ejaculated, then stopped.

Kennedy raised his hand. "Just a moment, please," he interrupted, as he
placed Mrs. Seabury in a chair, then glanced hastily at his watch.

She saw the motion and seemed suddenly to realize that it was nearing
the time for Sherburne to call up. With a mighty effort she seemed to
grip herself. She had just been shocked to know that she was charged
unjustly. But had she been cleared from one peril only to fall a victim
to another--the one she already feared? Was Sherburne to escape, after
all, and ruin her?

The telephone tinkled insistently. Kennedy seized the receiver.

"Who is it?" we heard him ask. "Mr. Sherburne--oh yes."

Mrs. Seabury paled at the name. I saw her shoot a covert glance at her
husband, and was relieved to see that his face betrayed as yet no
recognition of the name. She turned and listened to Kennedy, straining
her ears to catch every syllable and interpret every scrap of the
one-sided conversation.

Quickly Craig had jammed the receiver down on a little metal base which
we had not noticed near the instrument. Three prongs reaching upward
from the base engaged the receiver tightly, fitting closely about it.
Then he took up a watch-case receiver to listen through, in place of the
regular receiver.

"Sherburne, you say?" he repeated. "H. Morgan Sherburne?"

Apparently the voice at the other end of the wire replied rather
peevishly, for Kennedy endeavored to smooth over the delay. We waited
impatiently as he reiterated the name. Why was he so careful about it?
The moments were speeding fast and Mrs. Seabury found the suspense
terrific.

"Must pay--we'll never get anything on you?" Craig repeated after a few
moments further parley. "Very well. I am commissioned to meet you there
in ten minutes and settle the thing up on those terms," he concluded as
he clapped the regular receiver back on its hook with a hasty good-by
and faced us triumphantly.

"The deuce I won't get anything. I've got it!" he exclaimed.

Judson Seabury was too stunned by the revelation that he had a cancer to
follow clearly the maze of events.

"That," cried Kennedy, rising quickly, "is what is known as the
telescribe--a new invention of Edison that records on a specially
prepared phonograph cylinder all that is said--both ways--over a
telephone wire. Come!"

Ten minutes later, in a cab that had been waiting at the door, we pulled
up at the Vanderveer.

Without a word, leaving Judson Seabury and his wife in the waiting cab,
Craig sprang out, followed by me, as he signaled.

There was Sherburne, brazen and insolent, in the cafe as we entered,
from a rear door, and came upon him before he knew it, our friend,
Dunn, whom we had met in the lobby, hovering concealed outside, ready to
come to our assistance.

In a moment Kennedy was at Sherburne's elbow, pinching it in the manner
familiar to international crooks.

"Will you tell me what your precise business is in this hotel?" shot out
Craig before Sherburne could recover from his surprise.

Sherburne flushed and flared--then became pale with rage.

"None of your damned insolence!" he ground out, then paused, cutting the
next remark short as he gritted, "What do you mean? Shall I send a wax
impression of that key--"

Kennedy had quickly flashed the cylinder of the telescribe before his
eyes and instinctively Sherburne seemed to realize that with all his
care in using typewriters and telephones, some kind of record of his
extortion had been obtained.

For a moment he crumpled up. Then Kennedy seized him by the elbow,
dragging him toward a side door opposite that at which our cab was
standing.

"I mean," he muttered, "that I have the goods on you at last and you'll
get the limit for blackmail through this little wax cylinder if you so
much as show your face in New York again. I don't care where you go, but
it must be by the first train. Understand?"

A moment later we returned to the cab, where it had pulled up in the
shadow, away from the carriage entrance.

"You--you'll forgive me--for my--unjust suspicions--Agatha?" we heard a
voice from the depths of the cab say.

Kennedy pulled me back in time not to interrupt a muffled "Yes."

Craig coughed.

As he reached a hand in through the cab door to bid good-night to the
reunited couple, I saw Mrs. Seabury start, then turn and drop into her
handbag the key which Kennedy had extracted from Sherburne's pocket in
the _mêlée_ and now conveyed back to her in the handshake.




CHAPTER VII

THE DIAMOND QUEEN


"Meet _Sylvania_ Quarantine midnight. Strange death Rawaruska. Retain
you in interest steamship company. Thompson, Purser."

Kennedy had torn open the envelope of a wireless message that had come
from somewhere out in the Atlantic and had just been delivered to him at
dinner one evening. He read it quickly and tossed it over to me.

"Rawaruska," I repeated. "Do you suppose that means the clever little
Russian dancer who was in the 'Revue' last year?"

"There could hardly be two of that unusual name who would be referred to
so familiarly," returned Craig. "Curious that we've had nothing in the
wireless news about it."

"Perhaps it has been delayed," I suggested. "Let me ring up the _Star_.
They may have something now."

A few minutes later I rejoined Craig at the table. A report had just
been received that Rawaruska had been discovered, late the night before,
unconscious in her room on the _Sylvania_. The ship's surgeon had been
summoned, but before he was able to do anything for her she died. That
was all the report said. It was meager, but it served to excite our
interest.

Renée Rawaruska, I knew, was a popular little Russian dancer abroad who
had come to America the season previous and had made a big hit on
Broadway. Beautiful, strange, fiery, she incarnated the mysterious Slav.
I knew her to be one of those Russian dancers before whose performances
Parisian audiences had gone wild with admiration, one who had carried
her art beyond anything known in other countries, fascinating, subtle.

Hastily over the telephone Kennedy made arrangements to go down to
Quarantine on a revenue tug that was leaving to meet the _Sylvania_.

It was a weird trip through the choppy winter seas of the upper bay and
the Narrows, in the dark, with the wind cold and bleak.

The tug had scarcely cast off from the Battery, where we met it, when a
man, who had been watching us from a crevice of his turned-up ulster
collar, quietly edged over.

"You are Professor Kennedy, the detective?" he began, more as if
asserting it than asking the question.

Craig eyed him a moment, but said nothing.

"I understand," he went on, not waiting for a reply, "that you are
interested in the case of that little Russian actress, Rawaruska?"

Still Kennedy said nothing.

"My name is Wade--of the Customs Service," pursued the man, nothing
abashed. Sticking his head forward between the corners of his high
collar he added, in a lowered voice, "You have heard, I suppose, of the
great amber diamond, 'The Invincible'?"

Kennedy nodded and I thought hurriedly of all the big stones I had ever
heard--the Pitt, the Orloff, the Koh-i-noor, the Star of the South, the
Cullinan, and others.

"The Invincible, you know," he added, "is the largest amber diamond in
the world, almost the size of the famous Cullinan, over three hundred
carats. It was found in the dry diggings of the Vaal River, a few miles
from Kimberley. The dry diggings are independent of the De Beers
combine, of course. Well, its owner has always been in the position of
Mark Twain's man with the million-dollar bank-note who found it too
large to cash. No one knows just what an amber diamond of that size is
really worth. This one is almost perfect, resembles the huge top of a
decanter stopper. It's a beautiful orange color and has been estimated
at--well, as high as close to a quarter of a million, though, as I said,
that is all guesswork."

"Yes?" remarked Kennedy, more for politeness than anything else.

Wade leaned over closer.

"The Invincible," he whispered, shielding his lips from the keen, biting
gale, "was last known to belong to the De Guerres, of Antwerp. One of my
special agents abroad has cabled me to look out for it. He thinks there
is reason to believe it will be smuggled into America for safe keeping
during the troubles in Belgium."

It seemed to make no difference to the customs man that Kennedy did not
exactly welcome him with open arms. "The De Guerres are well-known
dealers in diamonds, one of the leading houses in the 'city of
diamonds,' as Antwerp has been called. One of the De Guerres is on the
_Sylvania_, the junior partner--" he paused, then added,--"the husband,
I believe, of Rawaruska. I thought perhaps you might be willing to try
to help me."

"I should be glad to," replied Kennedy tersely, pondering what the
officer had told us.

Nothing more was said on the trip and at last we came to the _Sylvania_,
lying grim and dark of hull off the little cluster of Quarantine
buildings, with myriads of twinkling lights on her, far above but
scarcely relieving the blackness of the leviathan form.

Thompson, the purser, a quiet, unexcitable Englishman, met us as we came
over the side, and for the moment we lost sight of our new-found friend,
Wade.

"Perhaps you didn't know it," informed Thompson as we made our way
through the ship, "but Rawaruska was married--had been for some time."

"Who was her husband?" queried Kennedy, seeking confirmation of what we
had already heard.

"Armand De Guerre, a Belgian, of Antwerp," was the reply, "one of the
partners in a famous old diamond-cutting firm of that city."

Kennedy looked at the purser keenly for a moment, then asked, "Were they
traveling together?"

"Oh, yes,--that is, he had engaged a room, but you know how crowded the
boats are with refugees fleeing to America from the war. He gave up his
room, or rather his share of it, to a woman, a professional saleswoman,
well known, I believe, in Antwerp as well as the Rue de la Paix in Paris
and Maiden Lane and Fifth Avenue of your city, a Miss Hoffman--Elsa
Hoffman. She shared the room with Rawaruska, while De Guerre took his
chances in the steerage."

As we walked down one of the main corridors we noticed ahead of us a
seemingly very nervous and excited gentleman engaged apparently in a
heated conversation with another.

"Monsieur De Guerre," whispered Thompson as we approached.

The two seemed to be just on the point of parting, as we neared them,
and, I think, our approach hastened them. I could not hear what one of
them said, but I heard De Guerre almost hiss, as he turned on his heel,
"Well, sir, you were the last one seen with her alive."

A moment later the purser introduced us to De Guerre. There was
something about him which I can hardly express on paper, a sort of
hypnotic fascination. I felt instinctively that such a man would wield a
powerful influence over some women. Was it in his eyes, or was it merely
his ardent foreign grace?

"You _must_ find out the truth," he cried eagerly. "Already they are
saying that it was suicide. But I cannot believe it. It cannot be.
No,--she was murdered!"

Kennedy ventured no opinion, but now, more than ever, hastened to
signify to the purser that he wanted to look over the ground as quickly
as possible before the ship docked.

Rawaruska, we found, had occupied Room 186, on the port side of one of
the lower decks. Kennedy seemed to be keenly interested, as we
approached the room in which the body still lay, awaiting arrival at the
pier a few hours later.

The stateroom, apparently, ran to the very skin of the vessel and the
ports opened directly on the water, not upon an outside deck, as with
the rooms above it. It was an outside room at the end of a sort of
cross alleyway, and it was impossible that anyone could have reached it
except through the corridors.

Attached to it was a little bath and directly across from the bath, on
the other side, was another small room which was occupied by her maid,
Cecilie, a French girl.

In the main bedroom was a double bed, a couch, a wardrobe, and a small,
thin-legged writing or dressing table.

On the white bed lay the now cold and marble figure of the once
vivacious little dancer who had enchanted thousands in life--petite,
brunette, voluptuous. Rawaruska was beautiful, even in death.

Her finely chiseled features, lacking that heaviness which often
characterizes European women, were, however, terribly drawn and her
perfect complexion on which she had prided herself was now all mottled
and bluish.

As Kennedy examined the body, I could not help observing that there
seemed to be every evidence that the girl had been asphyxiated in some
strange manner.

Had it been by a deft touch on a nerve of her beautiful, soft neck that
had constricted the throat and cut off her breath? I had heard of such
things. Or had it been asphyxiation due to a poison that had paralyzed
the chest muscles?

The purser, as soon as we came aboard, had summoned the ship's surgeon,
and we had scarcely arrived at Rawaruska's room when he joined us. He
was one of those solid, reliable doctors, not brilliant, but one in whom
you might place great confidence, a Dr. Sanderson, educated in
Edinburgh, and long a follower of the sea.

"Was there any evidence of a struggle?" asked Kennedy.

"No, none whatever," replied the doctor.

"No peculiar odor, no receptacle of any kind near her that might have
held poison?"

"No, nothing that could have been used to hold poison or a drug."

Kennedy was regarding the face of the little dancer attentively. "Most
extraordinary," he remarked slowly, "that congested look she has."

"Yes," agreed Dr. Sanderson, "her face was flushed and blue when I got
to her--cyanotic, I should say. There seemed to be a great dryness of
her throat and the muscles of her throat were paretic. Her pupils were
dilated, too, and her pulse was rapid, as if from a greatly increased
blood pressure."

"Was she conscious?" asked Kennedy, almost reverently turning over her
rigid body and looking at the back of her neck and the upper spine. "Did
she recognize anything, say anything?"

"She seemed to be in a state of amnesia," replied Sanderson slowly.
"Evidently if she had seen anything she had forgotten or wouldn't tell,"
he added cautiously.

"Who found her?" asked Craig. "How was she discovered?"

"Why, Miss Hoffman found her," replied the purser quickly. "She called
one of the stewards. She had been sitting in the library reading until
quite late and Rawaruska had retired early, for she was not a good
sailor, they tell me. It must have been nearly midnight when De Guerre
and a friend, pausing at the library door on their way from the smoking
room, saw Miss Hoffman, and all three stopped in the Ritz restaurant for
a bite to eat.

"De Guerre walked down the corridor with Miss Hoffman afterwards," he
continued, "and left her as she went into the room with his wife.
Perhaps a minute later--long enough anyway so that he had reached the
other end of the corridor--she screamed. She had turned on the light and
had found Rawaruska lying half across the bed, unconscious. Miss Hoffman
called to the steward to summon Dr. Preston, but he came to me first,
instead."

"Dr. Preston?" repeated Kennedy.

"Yes, a young American physician, the friend who had been with De Guerre
in the smoking room part of the evening, and later made up the party in
the restaurant," vouchsafed Sanderson.

"The man De Guerre was talking to as we came down the hall," put in
Thompson.

"H'm," mused Kennedy, evidently thinking of the remark we had overheard.

"I've talked with him now and then myself," admitted Sanderson; "a
bright fellow who has been studying abroad and after many adventures
succeeded in getting across the border into Holland and thence to
England. He managed to squeeze into the steerage of the _Sylvania_,
though, of course, like De Guerre, he was classed as a first-cabin
passenger. He had become very friendly with Rawaruska and her party
while they were waiting for bookings in London."

Thompson leaned over. "The steward in the corridor tells me," he said in
a low tone, "that early in the evening Dr. Preston and Rawaruska were
on the promenade deck together."

I tried vaguely to piece together the scraps of information which we had
gleaned. Kennedy, however, said nothing, but was now leaning over the
body of the little dancer, looking at the upper region of her spine
attentively. Quietly, from a group of three or four little red marks on
her back he squeezed out several drops of liquid, absorbing them on a
piece of sterile gauze.

A moment later, De Guerre, who had quietly slipped away during the
examination, as if unable to bear the sight of the tragedy, returned,
and with him was a young woman.

"Miss Elsa Hoffman," he introduced.

Elsa Hoffman was of a fascinating type, tall, finely gowned, of superb
poise, physically perfect. One could not help admiring her deep blue
eyes and blonde radiance. Indeed, I felt that one must rely much on her
attractions in pursuit of her business of selling gems to wealthy men
and women. Still, in spite of her evident poise, the tragedy seemed to
have oppressed and unnerved her.

She did not seem to be able to add much to the scanty stock of facts we
had, even after repeating the story of her discovery of Rawaruska, which
was substantially as the purser had already told it.

"I--I think perhaps Mr. Kennedy ought to question Cecilie," she
suggested finally, turning toward De Guerre, who nodded his assent.

A sudden movement in the passageway followed, and the door opened
quietly. A man entered, a youngish fellow of fine physique and
attractive face. I recognized him immediately as Dr. Preston. His
apparently usually debonair manner was visibly subdued by the presence
of death.

Evidently he had just heard that someone was investigating the tragedy
and had hastened to be present. Both De Guerre and Elsa nodded to him, a
trifle coldly. Only a moment did he pause to look at the drawn face on
the pillow, then stood apart, ill at ease until Kennedy had finished his
minute examination.

As Kennedy moved away from the bed, Dr. Preston contrived to place
himself near him and apart from the rest.

"Mr. Kennedy," he began in a husky undertone, "they tell me you have
been engaged to investigate this--this awful affair."

Kennedy assented.

"If there is anything I can do to help you," Preston added anxiously, "I
hope you will command me. In fact," he added as Kennedy nodded while
Preston glanced covertly at De Guerre and Miss Hoffman, "I hope you'll
get at the truth."

"Thank you," responded Kennedy, meeting his eye squarely this time; "I
shall be glad to call on you if occasion arises."

I watched Preston closely, not quite making out just what he was driving
at, nor the reason for the strained relations that now seemed to exist
among the former friends. Still following Kennedy's every motion,
Preston retired to the position of a more than interested spectator.




CHAPTER VIII

THE ANESTHETIC VAPORIZER


Craig had completed a hasty search of the room, with its little dressing
table, two trunks, and a cabinet. Everything seemed to have been kept in
a most neat and orderly manner by the attentive Cecilie, who was
apparently a model servant.

The little white bathroom was equally immaculate, and Kennedy passed
next to an examination of the little room of the French maid.

Cecilie was a pretty, dark little being, with snapping black eyes, the
type of winsome French maid that one would naturally have expected
Rawaruska, with her artist's love of the beautiful, to have picked out
to serve her dainty self.

As I ran my eye over the group that was now intently watching Kennedy at
work, I fancied I caught Elsa Hoffman eyeing Cecilie sharply, and I am
sure that once at least those black eyes snapped back a wireless message
of defiance at the penetrating eyes of blue. I could feel instinctively
the atmosphere of hostility between the two women.

"The door was not locked, you say?" repeated Craig, following up one of
the first of his own questions to Cecilie, which had resulted in
unearthing this new fact.

"Non, monsieur," replied Cecilie in accented English which was charming.
"Mam'selle--we all called her that, her stage name,--used to leave it
open in case of fire or accident. She had a terrible fear of drowning.
You know there have been some awful wrecks lately, and she was, oh, so
nervous."

"But her valuables?" prompted Craig quickly, watching the effect of his
question.

"All in the ship's safe, in care of the purser," replied Cecilie. "So
were Miss Hoffman's."

"Yes," corroborated Thompson, "and, besides, the corridors and
passageways are well patrolled by stewards at all times."

The search of Cecilie's room, which was smaller and more scantily
furnished, took only a few minutes.

A suppressed exclamation from Craig served to divert my attention from
the study of those around me to the study of Kennedy himself, and what
he had discovered.

Hidden away in the back of a drawer in a small chiffonier, he had come
across several articles that aroused interest if they did not whet the
blade of suspicion.

"_Mon Dieu!_" exclaimed the maid as Kennedy suppressed a smile of
gratification at the outcome of the search. "But that is not mine!"

Kennedy drew out from the back of the drawer, where it had been tucked,
a little silken bag. He opened it. On the surface it seemed that the bag
was empty. But as he brought it cautiously closer to his face to peer
in, I could see that just a whiff of its contents was enough.

"What have you there?" I asked Kennedy, careful that no one else could
overhear us.

"Cayenne pepper, snuff, and some other chemical," sneezed Craig. "Very
effective to throw into the face of anyone," he commented, closing
quickly the bag by its loose drawing strings, "that is, if you merely
want to blind him and put him out temporarily."

I did not pay much attention to the protests of the maid, nor the look
of triumph that crossed the face of Elsa Hoffman and surprise exhibited
by Dr. Preston. For Kennedy had picked up from the same drawer a little
toilet vaporizer, too, and was examining it minutely.

As he held it up, I could see, or rather I fancied that it was empty. He
pressed the bulb lightly, then seemed to start back quickly.

"What's that?" I queried, mystified at his actions.

"Something the French secret service spies call the 'bad perfume,'" he
returned frankly, "an anesthetic so incredibly rapid and violent that
the spies, usually women, who use it wear a filter veil over their own
mouths and noses to protect themselves."

The whole thing was so queer that I could only wonder what might be the
explanation. Cecilie was protesting volubly, now in fair English, now in
liquid French, that she knew absolutely nothing of the articles.

I wondered whether Rawaruska herself might not have placed them there.
Might she not have been a spy, one of those clever little dancers who
had wormed themselves by their graceful agility into the good graces of
some of the world's leading men and made Russia a recognized diplomatic
power?

Something like the same idea must have been suggested to Dr. Sanderson,
who was standing next me, for he bent over and remarked to me in an
undertone, with a significant glance at what Kennedy had discovered, "I
suppose you realize that the position of the Russian government has
undergone a marked change since the Russian dancers have won
international popularity?"

I had not thought much about it before, but now that he mentioned it, I
could not help a nod of assent.

"Why, I have heard," he continued with the air of a man who is imparting
a big piece of information, "that the beautiful young women of the
imperial ballet mingle in the society of the capitals of the world, make
friends with politicians, social leaders, high officials, and exert a
great influence in favor of their own country wherever they go. No
doubt," he added, "they sometimes convey valuable information to the
Foreign Office which could not be obtained in any other way."

I was not paying much attention to him, but still the doctor rattled on
in an undertone, "Some of these dancers are past masters in the art of
intrigue. Do you suppose Rawaruska and the rest have had the task set
for them to win back the public opinion of your country, which departed
from its traditional policy of friendliness during the Japanese war?"

I made no answer. I was engrossed in considering the primary question.
Could it have been a suicide, after all? Surely she had removed the
evidences of it much better than in any other case I had ever seen.

Or, had there been a "triangle," perhaps a quadrangle here? I could not
persuade myself that De Guerre cared greatly for his wife, except
perhaps to be jealous of anyone else having her. He was too attentive to
Elsa Hoffman, and she, in turn, was not of the type to care much for
anyone. As for Dr. Preston, although he seemed to have had a friendship
for Rawaruska, I could not exactly fit him into the scheme of things.

We proceeded up the bay on the _Sylvania_, but were able to discover
nothing further that night. As we left the ship at the dock in the
morning we ran across Wade, who was quietly directing a dozen or so of
his men.

"Any trace yet of the Invincible?" asked Craig, stopping in an
unostentatious corner.

The customs man shook his head gravely. "Not yet," he replied. "But I'm
not discouraged. If we miss it here in the customs inspection it will be
sure to turn up later. There's a shady jeweler on Fifth Avenue, Margot,
who knows these Antwerp people pretty well. I have a man working there,
a diamond cutter, and other agents in the trade. Oh, I'll hear about it
soon enough, if it is here. Only I'd like to have done something
spectacular, something that would count for me at Washington. Have you
found out anything?"

Briefly Kennedy told him some of the scattered facts we had discovered,
just enough to satisfy him without taking him into our confidence.

"I'm going to be busy in the laboratory, Walter," remarked Kennedy as
our taxicab extricated itself from the ruck of the river-front streets.
"I don't know that there is anything that you can do--except--well, yes.
I wish you'd try to keep an eye on some of these people--that maid,
Cecilie, especially."

We had learned that De Guerre was to stop at the Vanderveer and, later
in the morning, I dropped into the hotel and glanced over the register.
De Guerre was registered there and Cecilie had a little room, also,
pending the disposal he would make of her. Miss Hoffman had rooms of her
own, which she had evidently re-engaged, with a family in a residential
street not far from the hotel.

The clerk told me that De Guerre was out, but that the maid had returned
after having been out alone, for a short time, also. The lobby of the
Vanderveer was fairly crowded with people by this time, and I found no
difficulty in keeping in the background and still seeing pretty much
everything that went on.

It was rather tame, however, and I was still debating whether I should
not do something active, when I happened to glance up and catch sight of
a familiar face. It was Dr. Preston making inquiries for someone of the
room clerk. I dodged back of a pillar and waited, covering myself with
an early morning war extra that repeated the news of the night before.

A few moments later, Preston, who had received an answer from whomever
he was calling, edged his way toward one of the deserted little
reception rooms near a side carriage entrance. Carefully, I trailed him.

It was some minutes before I could make up my mind to risk passing the
door of the little parlor and being discovered, but I was growing
impatient. As I glanced in I was astonished to see him talking earnestly
to Cecilie. I did not dare stop, for fear one or the other might look
up, but I could see that Preston was eagerly questioning her. Her face
was averted from me and I could not read even her expression. The
passageway was deserted, and if I paused I would inevitably attract
attention. So I kept on, turning instinctively in the labyrinth and
coming back to the lobby, where I found a position near the telephone
booths which gave me a concealed view at least of the door of the parlor
around an angle. I waited.

Perhaps five minutes passed. Then Cecilie and Dr. Preston suddenly
emerged from the reception room. Evidently the maid was anxious to get
away, perhaps afraid to be seen with him. With a word, she almost ran
down the corridor in the direction of the rear elevators, and Preston,
with a queer look on his face, came slowly toward me.

Instinctively I drew back into a telephone booth; then it occurred to me
that if I emerged just as he passed he would not be likely to suspect
anything, and I might have a chance to study him.

I did so, and was quite amused at the look of surprise on his face as I
greeted him. Still, I do not think he thought I was shadowing him. We
paused for a moment on the street, after a conventional exchange of
remarks about the tragedy to poor little Rawaruska.

"That Miss Hoffman seems to be a very capable woman," I remarked, by way
of dragging the conversation into channels into which it seemed unlikely
to drift naturally.

"Y-yes," he agreed, as I caught a sidelong glance from the corner of his
eye. "I believe she has had a rather checkered career. I understand that
she was a nurse, a trained nurse, once."

There was something about the remark that impressed me. It was made
deliberately, I fancied. What his purpose was, I could not fathom, but I
felt that in the instant while he had hesitated he had debated and made
up his mind to say it.

My face betraying nothing to his searching glance, he pulled hastily at
his watch. "I'm going downtown on the subway--to clear up some of the
muss that this European business has got me in with my bankers," he said
quickly. "I'd be glad to have you call on me at any time at the
Charlton, just up the avenue a bit. Good-day, sir. I'm glad to have met
you. Drop in on me."

He was gone, scarcely waiting for me to reply, leaving me to wonder what
was the cause of his strange actions.

Mechanically I looked at my own watch and decided that I had left Craig
undisturbed long enough.




CHAPTER IX

THE TWILIGHT SLEEP


As I entered the laboratory I saw before him a peculiar, telescope-like
instrument, at one end of which, in a jar of oxygen, something was
burning with a brilliant, penetrating flame.

He paused in his work and I hastened to tell him of the peculiar
experience I had had in the forenoon. But he said nothing, even at the
significant actions of Dr. Preston.

"How about those things you found in the maid's room?" I asked at
length. "Do they explain Rawaruska's death?"

"The trouble with them," he replied, thoughtfully shaking his head, "is
that the effects of such things last only for a short time. They might
have been used at first--but there was something used afterward."

"Something afterward?" I repeated, keenly interested, and fingering the
telescope-like arrangement curiously. "What's this?"

"One of the new quartz lens spectroscopes used by Dr. Dobbie of the
English Government laboratories," he answered briefly. "I think
chemists, police officials, coroners and physicians are going to find it
most valuable. You see, by throwing the ultra-violet part of the
spectrum from a source of light as I obtain from the sparking of iron in
oxygen through the lenses of a quartz spectroscope, the lines of many
dangerous drugs, especially of the alkaloids, can be distinctly and
quickly located in the spectrum. Each drug produces a characteristic
kind of line. We use a quartz lens because glass cuts off the
ultra-violet rays. Why, even the most minute particle of poison can be
detected in this revolutionary fashion."

He had resumed squinting through the spectroscope.

"Well," I asked, "do you find anything there?"

He had evidently been using the piece of gauze on which he had preserved
the liquid from the peculiar little marks on Rawaruska's spine.

"Narcophin," he muttered, still squinting.

"Narcophin?" I repeated. "What is that?"

"A derivative of opium--morphine. There's another poison here, too," he
added.

"What is it?"

"Scopolamine," he answered tersely, "scopolamine hydrobromide."

"Why," I exclaimed, "that is the drug they use in this new 'twilight
sleep,' as they call it."

"Exactly," he replied, "the _dämmerschlaf_. I suspected something of the
kind when I saw those little punctures on her back. Some people show a
marked susceptibility to it; others just the reverse. Evidently she was
one of those who go under it quietly and quickly."

I looked at Kennedy in amazement.

"You can see," he went on, catching the expression on my face, "if it
could be used for medical science, it could also be used for crime.
That's the way I reasoned, the way someone else must have reasoned."

He paused, then went on. "Someone thought out this plan of using
narcophin and scopolamine to cause the twilight sleep, to keep Rawaruska
just on the borderland of unconsciousness, destroying her memory and
producing forgetfulness. That is the _dämmerschlaf_; perception is
retained but memory lost. You are acquainted with the test? They show an
object to a patient and ask her if she sees it. Say, half an hour later,
it is shown again. If she remembers it, it is a sign that a new
injection is necessary.

"Only in this case the criminal went too far, disregarded the danger of
the thing. Scopolamine in too great a quantity causes death by paralysis
of respiration--a paralysis, by the way, against which artificial
respiration and all means of stimulating are ineffective because of the
rigidity of the muscles. And so, you see, in this case Rawaruska died."

I could not help thinking of Preston, the young doctor who had been
studying in Germany. More than likely he had heard of and had
investigated the Frieberg "twilight sleep" treatment. We had made some
progress, even though we did not know why or by whom the drugs had been
administered.

Wade, of the Customs Service, had, as I have said, told us that he had
several secret agents about in the trade, constantly picking up bits of
information that might interest the Treasury Department. It did not
surprise Kennedy, therefore, late in the forenoon, to have Wade call up
and tell him that among the early callers at Margot's, the jeweler, was
the maid Cecilie.

"That was where she must have been before I reached the Vanderveer," I
exclaimed.

Kennedy nodded. "But why did she go there?" he asked. "And why was she
talking with Preston?"

Inasmuch as I couldn't answer the questions I didn't try, but waited
while Craig reasoned out some method of attack on them.

"Since it's known that we're working on the case of Rawaruska," he
ruminated half an hour later over an untasted lunch, "we might just as
well take the risk of seeing Margot himself. Let's go down and look his
shop over."

So in the middle of the afternoon, when Fifth Avenue was crowded with
shoppers, we paused before Margot's window, looking over the entrancing
display of precious stones gleaming out from the rich black velvet
background, and then sauntered in, like any other customers.

Kennedy engaged the salesman in talk about necklaces and lavallieres,
always leading the conversation around to the largest stones that he
saw, and dwelling particularly on those that were colored. As I
listened, trying to throw in a word now and then that would not sound
absolutely foolish, I was impressed by a feeling that Margot's, even
though it was such a fashionable place, was what might be called only a
high-class shyster's. In fact, I recalled having heard that Margot had
engineered several rather questionable transactions in gems.

"I'm much interested in orange stones," remarked Kennedy, casually
turning up a flawless white diamond and discarding it as if it did not
interest him. "Once when I was abroad I saw the famous Invincible, and a
handsomer gem than it is I never hope to see."

The clerk, ever obliging, replaced the tray before us in the safe and
retired toward the back of the shop.

"He suspects nothing, at least," whispered Kennedy.

A moment later he returned. "I'm sorry," he reported, "but we haven't
any such stones in the house. But I believe we expect some in a few
days. If you could--"

"I shall remember it; thank you," interrupted Kennedy brusquely, as I
caught a momentary gleam of satisfaction in his eye. "That's most
fortunate. I'll be in again. Thank you."

We turned toward the door. In an instant it flashed over me that perhaps
they were recutting the big Invincible.

"Just a moment, please, gentlemen," interrupted a voice behind us.

A short, stocky man had come up behind us.

"I thought you did not look like purchasers, nor yet like crooks," he
said defiantly. "Did I hear you refer to the Invincible?"

It was Margot himself, who had been hovering about behind us. Kennedy
said nothing.

"Yes," he went on, "I am cutting a large diamond, but it is not like the
Invincible. It is much handsomer--one that was discovered right here in
this country in the new diamond fields of Arkansas. The diamond itself
is already sold. And you would nevair guess the buyer, oh, nevair!"

"No?" queried Kennedy.

"Nevair!" reiterated Margot.

"It could not be delivered to a woman who was once the maid of
Rawaruska, the Russian dancer?" Craig asked abruptly.

Margot shot a quick and suspicious glance at us.

"Then you are, as I suspected, a detectif?" he cried.

Kennedy eyed him sharply without admitting the heinous charge. Margot
returned his look and I felt that of all sayings that about a dishonest
man not being able to look you in the eye was itself the least credible.
He laughed daringly. "Well, perhaps you are right," he said. "But
whoever it is, he is lucky to have bought a stone like it so cheaply!"

The man was baffling. I could not figure it out. Had Margot been simply
a high-class "fence" for the disposal and convenient reappearance of
stolen goods?

We returned uptown to our apartment to find that in the meantime Wade
had called up again. Kennedy got him on the wire. It seemed that shortly
after we left Margot's Cecilie had called again and had gone off with a
small, carefully wrapped package.

"A strange case," pondered Kennedy, as he hung up the receiver. "First
there is a murder that looks like a suicide, then the sale of a diamond
that looks like a fake." He paused a moment. "They have worked quickly
to cover it up; we must work with equal quickness if we are to uncover
them."

With almost lightning rapidity he had seized the telephone again and had
our old friend First Deputy O'Connor on the wire. Briefly he explained
the case, and arranged for the necessary arrests that would bring the
principal actors in the little drama to the laboratory that night. Then
he fell to work on a little delicate electrical instrument consisting,
outwardly at least, of a dial with a pointer and several little carbon
handles attached to wires, as well as a switchboard.

I know that Kennedy did not relish having his hand forced in this
manner, but nevertheless he was equal to the emergency and when, after
dinner, those whom O'Connor had rounded up began to appear at the
laboratory, no one would ever have imagined that he had not the entire
case on the very tip of his tongue, almost bursting forth an accusation.

De Guerre had complied with the police order by sending Cecilie alone in
a cab, and later he drove up with Miss Hoffman. Dr. Preston came in
shortly afterward, shooting a keen glance at Cecilie, and avoiding more
than a nod to De Guerre. Margot himself was the last to arrive,
protesting volubly. Wade, of course, was already there.

"I really must beg your pardon," began Kennedy, as he ignored the
querulousness of Margot, the late arrival, adding significantly, "that
is, of all of you except one, for monopolizing the evening."

Whatever might have been in their minds to say, no one ventured a word.
Kennedy's tone when he said, "Of all of you except one," was too tense
and serious. It demanded attention, and he got it.

"I am going to put to you first a hypothetical case," he continued
quietly. "Let us say that the De Guerres of Antwerp decided to smuggle a
great jewel into America for safe keeping, perhaps for sale, during the
troublous times in their own country.

"Now, any man would know," he went on, "that he had a pretty slim chance
when it came to smuggling in a diamond. Besides, everyone knew that the
De Guerres owned this particular stone, of which I shall speak later.
But a woman? Smuggling is second nature to some women."

Quickly he ran over the strange facts that had been unearthed regarding
the death of the dainty Russian dancer.

"You were right, Monsieur De Guerre," he concluded, turning
to the diamond merchant; "it was no suicide. Your wife was
killed--unintentionally, it is true,--but killed in an attempt to steal
a great diamond from her while she was smuggling it."

De Guerre made no answer, save a hasty glance at Wade that did not carry
with it an admission of smuggling.

"You mean to say, then, Mr. Kennedy," Margot demanded, "that while
Rawaruska was smuggling in the big diamond of which you speak someone
heard of it and deliberately _murdered_ her?"

"Not too fast," cautioned Craig. "Think again before you use those
words, 'deliberately murdered.' If it had been murder that was intended,
how much more surely it might have been accomplished by more brutal
methods--or by more scientific. No, murder was never deliberately
intended."

He stopped, as if to emphasize the point, then slowly began to
distribute to each of us one of the carbon handles I had seen him
adjusting to the peculiar little electrical instrument.

"Let me reconstruct the case," he hurried on, giving a final twist or
two to the instrument itself, now placed before him on a table, with its
dial face away from us. "Rawaruska had retired for the night. Where had
she placed the diamond? It would probably take a long search to find it.
Well, the twilight sleep was chosen because it was supposed to be a
safe and sure means to the end. Even if she retained some degree of
consciousness, she would forget what happened. That is partly the reason
for the treatment, anyhow,--the loss of memory.

"Someone believed this was a safe and sure anesthetic. First perhaps a
whiff of the secret service 'bad perfume' to insure that she would not
cry out--then an injection of narcophin and scopolamine--another--and
the twilight sleep. A few minutes, and Rawaruska was unconscious.

"Then came the search. Perhaps she was restless. Another injection
settled that. At last the great diamond was found. But the twilight
sleep meant not forgetfulness but death to Rawaruska!"

Craig paused. It was almost as if one could see the word picture of the
scene as he painted it.

"What was to be done? The diamond must be recut--anything to hide its
identity, at once, and at any cost. And Margot? The story of the
Arkansas diamond and the sale is a blind. The case is perfect!"

Kennedy raised his eyes for the first time from the study of the little
electrical machine before him, and caught the eye of Cecilie, holding
it, unwilling.

"Did you ever hear of the great diamond, the Invincible?" Kennedy
smashed out.

I felt that it might not have been exactly chivalrous, but it was
necessary.

Cecilie's breast, which had showed a wildly beating heart as Kennedy
told of how her mistress had died, was calmer now. Her air of surprise
at the mention of the diamond was perfect. Elsa Hoffman was gazing at
her, too, in tense interest. De Guerre was outwardly cool, Margot
openly cynical, Preston leaning forward in ill-suppressed excitement.

For a moment Kennedy paused again, as if allowing all to collect
themselves before he took them by assault.

"I have lately been studying," he remarked casually, "the experiments of
Dr. Von Pfungen of Vienna showing the protective resistance of the human
skin against an electric current. Normally, this resistance averages
from seventy to eighty thousand ohms. In the morning, owing to the
accumulation of waste products, the resistance may mount to almost
double. In persons suffering from nervous anxiety, it decreases to five
thousand and even down to a thousand ohms in cases of hysteria. Von
Pfungen has also measured a human being's emotional feelings by the
electric current. I have a copy of his instrument here. There is one
person who sits gripping the carbon electric handle connected with this
galvanometer who, to begin with, had a resistance of over sixty
thousand. But when I began to tell of how Rawaruska met her death, of
the hypothetical case I have built up by my observations and experiments
here in this very laboratory, the needle of the galvanometer started to
oscillate downward. It went down until it reached thirty-eight thousand
at the mention of murder. When I said the case was perfect, it had got
as low as under twenty thousand, swinging lower and lower as the person
saw hope depart!"

Kennedy was no longer paying any attention to the little instrument. As
I followed him, I became more and more impatient. What was it he had
discovered? Who was it?

"Preston," cried Kennedy, suddenly wheeling on the young doctor,
"through your regard--honorable, I am sure--for Rawaruska you have let
yourself be drawn into doing a little amateur detective work. Let me
warn you. Instead of clearing up the case, you merely laid yourself open
to suspicion. Fortunately the galvanometer absolves you. You should have
known that Cecilie was only a tool. De Guerre, your black wallet, that
all diamond dealers carry--thank you, Wade--that's it."

Kennedy had turned from Preston to Cecilie, then to De Guerre so
suddenly that no one was prepared for the signal he gave to the customs
officer.

Wade had covered the surprised dealer and was now emptying out the
contents of the wallet.

There, on the table, gleaming in the light of the laboratory, lay a
wonderful brilliant, some three hundred carats--perfect in its blazing
crystalline orange beauty. There it lay, a jewel which might charm and
arouse the cupidity of two hemispheres. It shone like a thing of life.
Yet back of its orange fire lay a black tragedy.

Margot was on his feet instantly.

"That is not the--"

"Just a moment, Mr. Margot," interrupted Kennedy. "I think Mr. Wade will
be able to show that it is the Invincible when he matches up the parts
that have been hurriedly cut from--from the wonderful Arkansas diamond,"
Craig added sarcastically. "Miss Hoffman, Dr. Preston tells us that
before you were a diamond saleswoman you had been a trained nurse!"

The look Elsa Hoffman flashed, as her calm exterior refused to conceal
her emotions longer, was venomous.

Kennedy was the calmest one of us all as he tapped the little
galvanometer significantly with his index finger.

"De Guerre," he exclaimed, leaning forward slightly, "you and your
lover, Elsa Hoffman, planned cunningly to rob your own brothers. But,
instead of robbers merely," he ground out, "you are murderers!"




CHAPTER X

THE SIXTH SENSE


"I suppose you have read in the papers of the mysterious burning of our
country house at Oceanhurst, on the south shore of Long Island?"

It had been about the middle of the afternoon that a huge automobile of
the latest design drew up at Kennedy's laboratory and a stylishly
dressed woman, accompanied by a very attentive young man, alighted.

They had entered and the man, with a deep bow, presented two cards
bearing the names of the Count and Countess Alessandro Rovigno.

Julia Rovigno, I knew, was the daughter of Roger Gaskell, the retired
banker. She had recently married Count Rovigno, a young foreigner whose
family had large shipping interests in America and at Trieste in the
Adriatic.

"Yes, indeed, I have read about it," nodded Craig.

"You see," she hurried on a little nervously, "it was a wedding present
to us from my father."

"Giulia," put in the young man quickly, giving her name an accent that
was not, however, quite Italian, "thinks the fire was started by an
incendiary."

Rovigno was a tall, rather boyish-looking man of thirty-two or
thirty-three, with light brown hair, light brown beard and mustache. His
eyes and forehead spoke of intelligence, but I had never heard that he
cared much about practical business affairs. In fact, to American
society Rovigno was known chiefly as one of the most daring of
motor-boat enthusiasts.

"It may have been the work of an incendiary," he continued thoughtfully,
"or it may not. I don't know. But there has been an epidemic of fires
among the large houses out on Long Island lately."

I nodded to Kennedy, for I had myself compiled a list for the _Star_,
which showed that considerably over a million dollars' worth of show
places had been destroyed.

"At any rate," added the Countess, "we are burned out, and are staying
in town now--at my father's house. I wish you would come around there.
Perhaps father can help you. He knows all about the country out that
way, for his own place isn't a quarter of a mile away."

"I shall be glad to drop around, if I can be of any assistance," agreed
Kennedy as the young couple left us.

The Rovignos had scarcely gone when a woman appeared at the laboratory
door. She was well dressed, pretty, but looked pale and haggard.

"My name is Mrs. Bettina Petzka," she began, singling out Kennedy. "You
do not know me, but my husband, Nikola, was one of the first students
you taught, Professor."

"Yes, yes, I recall him very well," replied Craig. "He was a brilliant
student, too--very promising. What can I do for you?"

"Why, Professor Kennedy," she cried, no longer able to control her
feelings, "he has suddenly disappeared."

"What line of work had he taken up?" asked Craig, interested.

"He was a wireless operator--had been employed on a liner that runs to
the Adriatic from New York. But he was out of work. Someone has told me
that he thought he saw Nikola in Hoboken around the docks where a number
of the liners that go to blockaded ports are laid up waiting the end of
the war."

She paused.

"I see," remarked Kennedy, pursing up his lips thoughtfully. "Your
husband was not a reservist of any of the countries at war, was he?"

"No--he was first of all a scientist. I don't think he had any interest
in the war--at least he never talked much about it."

"I know," persisted Craig, "but had he taken out his naturalization
papers here?"

"He had applied for them."

"When did he disappear?"

"I haven't seen him for two nights," she sobbed.

It flashed over me that it was now two nights since the fire that had
burned Rovigno's house, although there was no reason for connecting the
events, at least yet.

The young woman was plainly wild with anxiety. "Oh, can't you help me
find Nikola?" she pleaded.

"I'll try my best," reassured Kennedy, taking down on a card her address
and bowing her out.

It was late in the afternoon before we had an opportunity to call at the
Gaskell town house where the Rovignos were staying. The Count was not at
home, but the Countess welcomed us and led us directly into a large
library.

"I'd like to have you meet my father," she introduced. "Father, this is
Professor Kennedy, whom Alex and I have engaged to look into the burning
of our house."

Old Roger Gaskell received us, I thought, with a curious mixture of
restraint and eagerness.

"I hope you'll excuse me?" asked the Countess a moment later. "I really
must dress for dinner. But I think I've told you all I can. I wanted you
to talk to my father."

"I've heard of the epidemic of fires from my friend Mr. Jameson here, on
the _Star_," remarked Kennedy when we were alone. "Some, I understand,
have attributed the fires to incendiaries, others have said they were
the work of disgruntled servants, others of an architect or contractor
who hasn't shared in the work and thinks he may later. I've even heard
it said that an insurance man may be responsible--hoping to get new
business, you know."

Gaskell looked at us keenly. Then he rose and approached us, raising his
finger as though cautioning silence.

"Do you know," he whispered so faintly that it was almost lost,
"sometimes I think there is a plot against me?"

"Against _you_?" whispered back Kennedy. "Why, what do you mean?"

"I can't tell you--here," he replied. "But, I believe there are
detectaphones hidden about this house!"

"Have you searched?" asked Kennedy keenly.

"Yes, but I've found nothing. I've gone over all the furniture and such
things. Still, they might be inside the walls, mightn't they?"

Kennedy nodded.

"Could you discover them if they were?" asked Gaskell.

"I think I could," replied Craig confidently.

"Then there's another peculiar thing," resumed Gaskell, a little more
freely, yet still whispering. "I suppose you know that I have a country
estate not far from my daughter?"

He paused. "Of course I know," he went on, watching Kennedy's face,
"that sparks are sometimes struck by horses' shoes when they hit stones.
But the shoes of my horses, for instance, out there lately have been
giving forth sparks even in the stable. My groom called my attention to
it, and I saw it myself."

He continued looking searchingly at Kennedy. "You are a scientist," he
said at length. "Can you tell me why?"

Kennedy was thinking deeply. "I can't, offhand," he replied frankly.
"But I should like to have a chance to investigate."

"There may be some connection with the fire," hinted Gaskell anxiously
as he accompanied us to the door.

At our own apartment, when we returned, we found our friend, Burke, of
the Secret Service, waiting for us.

"Just had a hurry call to come to New York," he explained, "and thought
I'd like to drop in on you first."

"What's the trouble?" asked Kennedy.

"Why, there's been a mysterious yacht lurking about the mouth of the
harbor for several days and they want to look into it."

"Whose yacht do they think it is?"

"They don't know, but it is said to resemble one that belongs to a man
named Gaskell."

"Gaskell?" repeated Craig, turning suddenly.

"Yes,--the _Furious_--a fast, floating palace--one of these new power
yachts, run by a gas engine--built for speed. Why, do you know anything
about it?"

Kennedy said nothing.

"The revenue cutter _Uncas_ has been assigned to me," went on Burke. "If
you have nothing better to do, I'd like to have you give me a hand in
the case. You might find it a little different from the ordinary run."

"I shall be glad to go with you," replied Craig cordially. "Only, just
now I've got a particular case of my own. I'll see you tomorrow at the
Customs House, though, if I can."

"Good!" exclaimed Burke. "I don't think either of you, particularly
Jameson, will regret it. It promises to be a good story."

Burke had scarcely left us when Kennedy decided on his next move. We
went directly over to the Long Island Railroad station and caught the
next train out to Oceanhurst, not a long run from the city.

Thus, early in the evening, Kennedy was able to begin, under cover, his
investigation of the neighborhood of the Rovigno and Gaskell houses.

We entered the Gaskell estate and looked it over as we made our way
toward the stable to find the groom. Out on the bay we could see the
_Furious_ at anchor. Nearer in shore were a couple of Count Rovigno's
speedy racing motor-boats. Along the shore, we saw a basin for yachts,
capable even of holding the _Furious_.

The groom proved to be a rather dull-witted fellow, and left us pretty
much to our own devices.

"Ya-as--sparks--I saw 'em," he drawled in answer to Kennedy's question.
"So did Mr. Gaskell. Naw--I don't know nawthin' about 'em."

He had lumbered out into another part of the stable when I heard a low
exclamation from Craig, of "Look, Walter!"

I did look in amazement. There were indeed little sparks, in fact a
small burst of them in all directions, where there were metal surfaces
in close proximity to one another.

Kennedy had brought along with him a strange instrument and he was now
looking attentively at it.

"What is that?" I asked.

"The bolometer," he replied, "invented by Professor Langley."

"And what does it do?"

"Detects waves," he replied, "rays that are invisible to the eye. For
instance, just now it tells me that shooting through the darkness are
invisible waves, perhaps infra-red rays."

He paused, and I looked at him inquiringly.

"You know," he explained, "the infra-red rays are closer to the heat
rays than those of the upper end of the spectrum and beyond, the
ultra-violet rays, with which we have already had some experience."

Kennedy continued to look at his bolometer. "Yes," he remarked
thoughtfully, half to himself, "somewhere around here there is a
generator of infra-red rays and a projector of those rays. It reminds me
of those so-called F-rays of Ulivi--or at least of a very powerful
wireless."

I was startled at the speculations that his words conjured up in my
mind. Was the "evil eye" of superstition a scientific fact? Was there a
baneful beam that could be directed at will--one that could not be seen
or felt until it worked its havoc? Was there a power that steel walls
could not hold, which, in fact, was the more surely transmitted by them?

Somehow, the fact of the strange disappearance of Petzka, the wireless
operator, kept bobbing up in my mind. I could not help wondering
whether, perhaps, he had found this strange power and was using it for
some nefarious purpose. Could it have been Petzka who was responsible
for the fires? But, why? I could not figure it out.

Early the next morning we called at the Gaskell town house again.
Kennedy had brought with him a small piece of apparatus which seemed to
consist of two sets of coils placed on ends of a magnet bar. To them was
attached a long flexible wire which he screwed into an electric light
bulb socket. Then he placed a peculiar telephone-like apparatus,
attached to the other end, to his ears. He adjusted the magnets and
carried the thing carefully about the room.

At one point he stopped and moved the thing vertically up along the
wall, from floor to ceiling.

"That's a gas pipe," he said simply.

"What's the instrument?" I asked.

"A new apparatus for finding pipes electrically, which I think can be
just as well applied to finding other things concealed in walls under
plaster and paper."

He paused to adjust the thing. "The electrical method," he went on, "is
a special application of well-known induction balance principles. You
see one set of coils receives an alternating or vibrating current. The
other is connected with this telephone. First I established a balance so
that there was no sound in the telephone."

He moved the thing about. "Now, when the device comes near metal-piping,
for example, or a wire, the balance is disturbed and I hear a sound.
That was the gas pipe. It is easy to find its exact location. Hulloa--"

He paused again in a corner, back of Gaskell's desk and appeared to be
listening intently.

A moment later he was ruthlessly breaking through the plaster of the
beautifully decorated wall.

Sure enough, in there was a detectaphone, concealed only a fraction of
an inch beneath the paper, with wires leading down inside the partition
in the direction of the cellar.




CHAPTER XI

THE INFERNAL MACHINES


He ripped the little mechanical eavesdropper out, wires and all, but he
did not disconnect the wires, yet.

We traced it out, and down into the cellar the wires led, directly, and
then across, through a small opening in the foundations into the next
cellar of an apartment house, ending in a bin or storeroom.

In itself the thing, so far, gave no clew as to who was using it or the
purpose for which it had been installed. But it was strange.

"Someone _was_ evidently trying to get something from you, Mr. Gaskell,"
remarked Craig pointedly, after we returned to the Gaskell library. "Why
do you suppose he went to all that trouble?"

Gaskell shrugged his shoulders and averted his eyes.

"I've heard of a yacht outside New York harbor," added Craig casually.

"A yacht?"

"Yes," he said nonchalantly, "the _Furious_."

Gaskell met Kennedy's eye and looked at him as though Craig had some
occult power of divination. Then he moved over closer to us.

"Is that detectaphone thing out of business now?" he asked, hoarsely.

"Yes."

"Absolutely?"

"Absolutely."

Gaskell leaned over.

"Then I don't mind telling you, Professor Kennedy," he said in a low
tone, "that I am letting a friend of mine from London use that yacht to
supply some allied warships on the Atlantic with news, supplies and
ammunition, such as can be carried."

Kennedy looked at him keenly, but for some moments did not answer. I
knew he was debating on how he might properly dove-tail this with
Burke's case, ethically.

"Someone is trying to find out from eavesdropping just what your plans
are, then," remarked Craig thoughtfully, with a significant tap on the
detectaphone.

A moment later he turned his back to us and knelt down. He seemed to be
wrapping the detectaphone up in a small package which he put in his
pocket and closing the hole in the wall as best he could where he had
ripped the paper.

"All I ask of you," concluded Gaskell, as we left a few minutes later,
"is to keep your hands off that phase of things. Find the
incendiary--yes; but this other matter that you have forced out of
me--well--hands off!"

On our way downtown to keep the appointment Kennedy had made with Burke
the night before, he stopped at the laboratory to get a heavy parcel
which he carried along.

We found Burke waiting for us, impatiently, at the Customs House.

"We've just discovered that the liners over at Hoboken have had steam up
for a couple of days," he said excitedly. "Evidently they are waiting to
make a break for the ocean--perhaps in concert with a sortie of the
fleets over in Europe."

"H-m," mused Kennedy, looking fixedly at Burke, "that complicates
matters, doesn't it? We must preserve American neutrality."

He thought a moment. "I should like to go aboard the revenue cutter. May
I?"

"Surely," agreed Burke.

A few moments later we were on the _Uncas_, Kennedy and Burke in earnest
conversation in low tones which I did not overhear. Evidently Craig was
telling him just enough of what he had himself discovered so as to
enlist Burke's services.

The captain in charge of the _Uncas_ joined the conversation a few
moments later, and then Kennedy took the heavy package down below. For
some time he was at work in one of the forward tanks that was full of
water, attaching the thing, whatever it was, in such a way that it
seemed to form part of the skin of the ship.

Another brief talk with Burke and the captain followed, and then the
three returned to the deck.

"Oh, by the way," remarked Burke, as he and Kennedy came back to me, "I
forgot to tell you that I have had some of my men working on the case
and one of them has just learned that a fellow named Petzka, one of the
best wireless operators,--a Hungarian or something--has been engaged to
go on that yacht."

"Petzka?" I repeated involuntarily.

"Yes," said Burke, in surprise, "do you know anything about him?"

I turned to Kennedy.

"Not much," replied Craig. "But you can find out about him, I think,
through his wife. He used to be one of my students. Here's her address.
She's very anxious to hear from him. I'm sure that if you have any news
she will be only too glad to receive it."

Burke took the address and a little while later we went ashore.

I was not surprised when Kennedy proposed, as the next move, to revisit
the cellar in the apartment next to Gaskell's house. But I was surprised
at what he said, after we had reached the place.

All along I had supposed that he was planning to wait there in hope of
catching the person who had installed the detectaphone. That, of course,
was a possibility, still. But in reality he had another purpose, also.

We had scarcely secreted ourselves in the cellar storeroom, which was in
a dark corner where one might remain unobserved even if the janitor
entered the cellar, provided he did not search that part, when Kennedy
took the receiving headpiece of the detectaphone and placed it over his
head, quite as if nothing had happened.

"What's the use of that?" I queried. "You ripped the transmitter out up
above."

He smiled quietly. "While my back was turned toward you, so that you
couldn't see," he said, "I slipped the thing back again, only down
further where Gaskell wouldn't be likely to find it, even if he looked.
I don't know whether he was frank with us, so I thought I'd try the
eavesdropping game myself, in place of the man who put this thing in in
the first place, whoever he was."

We took turns listening, but could hear not a sound. Nor did anyone come
into the cellar.

So a good part of the afternoon passed, apparently fruitless.

My patience was thoroughly exhausted when, suddenly, a motion from Craig
revived my flagging interest. I waited impatiently for him to tell me
what it was that he heard.

"What was it?" I asked finally as he pulled the receivers off his head
and stood for a moment, considering.

"At first I heard the sound of voices," he answered quickly. "One was
the voice of a woman, which I recognized. It was the Countess. The other
was the Count.

"'Giulia,' I heard him say, as they entered the room, 'I don't see why
you should want to go. It's dangerous. And besides, it's none of our
business if your father lets his yacht be used for such a purpose.'

"'But I want to go, Alex,' she said. 'I will go. I'm a good sailor. It's
father's yacht. He won't care.'

"'But what's the use?' he expostulated. 'Besides--think of the danger.
If it was our business, it might be different.'

"'I should think you'd want to go.'

"'Not I. I can get all the excitement I want in a motor-boat race
without risking my precious neck pulling the chestnuts out of the fire
for someone else.'

"'Well, I want the adventure,' she persisted, petulantly.

"'But, Giulia, if you go tonight, think of the risk--'

"That was the last I heard as they left the room, still arguing.
Evidently, someone is going to pull off something tonight."

It did not take Kennedy long to make up his mind what to do next. He
left the cellar hurriedly and in the laboratory hastily fixed up a
second heavy and bulky package similar to that which he had taken down
to the revenue cutter earlier in the day, making it into two parcels so
as to distribute the burden between us.

That night we journeyed out to Oceanhurst again. Avoiding the regular
road, we made our way from the station to the Gaskell place by a
roundabout path and it was quite dark by the time we got there.

As we approached the basin we saw that there were several men about.
They appeared to be on guard, but since Oceanhurst at that season of the
year was pretty deserted and the Gaskell estate was out of the town,
they were not especially vigilant.

Dark and grim, with only one light showing weakly, lay the yacht, having
been run into the basin, now. A hawser had been stretched across the
mouth of the basin. Outside was a little tender, while a searchlight was
playing over the water all the time. Evidently whatever interference was
feared was expected from the water rather than from the land.

We slunk into the shadow of a row of bath-houses, in order to get our
bearings. On the opposite side from the road that led down from the
house, it was not so likely that anyone would suspect that interlopers
were hiding there.

Still, they were not neglecting that side of the basin, at least in a
perfunctory sort of way.

Kennedy drew me back into the shadow, deeper, at the sound of footsteps
on the boardwalk leading in front of the bath-houses.

From our hiding place we could now hear two voices, apparently of
sailors.

"Do you know the new wireless operator who goes with us tonight?" asked
one.

"No. They've been very careful of him. I guess they were afraid that
someone might get wise. But there couldn't very well be any leak, there.
One of those Englishmen has been with him every minute since he was
engaged."

"They say he's pretty good. Who is he?"

"A Servian, he says, and his name sounds as if it might be so."

The voices trailed off. It was only a scrap of conversation, but Kennedy
had not missed a word of it.

"That means Petzka," he nodded to me.

"What is he--a Hungarian or a Servian?" I asked quickly.

Kennedy had craned his neck out beyond the corner of the bath-houses and
was looking at the _Furious_ in the basin.

"Come on, Walter," he whispered, not taking time to answer my question.
"Those fellows have gone. There's no one at all on this side of the
basin and I just saw the men on deck go up the gangplank to the
boat-house. They can't do any more than put us off, anyhow."

He had watched his chance well. As quickly as we could, burdened down by
our two heavy packages, we managed to slip across the boardwalk to the
piling that formed that side of the basin. The _Furious_ had swung over
with the tide nearer our side than the other. It was a daring leap, but
he made it as lightly as a cat, landing on the deck. I passed over the
packages to him and followed.

Kennedy scarcely paused to glance about. He had chosen a moment when no
one was looking, and, bending down under the weight of the packages we
dodged back of a cabin. A dim light shining into the hold told us that
no one was there and we dived down. It was the work of a moment to
secrete ourselves in the blank darkness behind a pile of boxes, aft.

A noise startled us. Someone was coming down the steep, ladder-like
stairs. A moment later we heard another noise. There were two of them,
moving about among the boxes. From our hiding place we could overhear
them talking in hoarse whispers, but could not see them.

"Where did you put them?" asked a voice.

"In every package of explosives and in as many of the boxes of canned
goods as I had time. There wasn't much opportunity except while the
stuff was in the boat-house."

I looked at Kennedy, wild-eyed. Was there treachery in the crew? He was
leaning forward as much as our cramped quarters would permit, so as not
to miss a word.

"All right," said the other voice. "No one suspects?"

"No. But the Secret Service has been pretty busy. They suspect
something--but not this."

"Good. You are sure that you can detonate them when the time comes?"

"Positive. Everything is working fine. I've done my part of it.
Changing wireless operators gave me just the chance I wanted."

"All right. I guess I'll go now."

"Remember the signal. As soon as the things are detonated I will get
off, some way, by wireless the S O S--as if it came from the fleet, you
understand?"

"Yes--that will be the signal for the dash. Good luck--I'm going ashore
now."

As they passed up the ladder, I could no longer restrain myself.

"Craig," I cried, "this is devilish!"

I thought I saw it all now. In the cases of goods on the _Furious_ were
some terrible infernal machines which had been hidden, to be detonated
by these deadly rays of wireless.

Kennedy was busy, working quickly putting together the parts he had
taken from the two packages we had carried.

As I watched him, I realized that the burning of the Rovigno house was
not the action of an incendiary, after all. It had been done by these
deadly rays, probably by mere accident.

As nearly as I could make it out, there was a counterplot against the
_Furious_. Somewhere was an infernal workshop, possibly hedged about by
doors of steel which ordinary force would find hard to penetrate, but
from which, any moment, this super-criminal might send out his deadly
power.

The more I considered it, while Kennedy worked, the more uncanny it
seemed. This man had rendered the mere possession of explosives more
dangerous to the possessor than to the enemy.

Archimedes had been outdone!

The problem before us now was not only the preservation of American
neutrality, but the actual safety of life.

Through the open hatch I could now hear voices on the deck. One was that
of a woman, which I recognized quickly. It was Julia Rovigno.

"I'll be just as quiet as a mouse," she was saying. "I'll stay in the
cabin--I won't be in the way."

I could not hear the man's voice in reply, but it did not sound like
Rovigno's. It was rather like Gaskell's.

Still, we had heard enough to know that Julia Rovigno was on the yacht,
had insisted on going on the expedition for the excitement of the thing,
just as we had heard over the detectaphone.

"Hadn't we better warn her?" I asked Craig, who had paused in his work
at the sound of voices.

Before he could answer we were plunged in sudden darkness. Someone had
switched out the light that had been shining down through the hatchway.
Before we knew it the opening to the hatchway had been closed.




CHAPTER XII

THE SUBMARINE BELL


Kennedy groped about for a light, stumbling over boxes and bags.

"For heaven's sake, Craig," I entreated. "Be careful. Those packages are
full of the devilish things!"

He said nothing.

At least we had a little more freedom to move and I managed to find my
way over to a little round porthole and open it.

As I looked out, I almost fainted at the realization. The _Furious_ was
under way! We were locked in the hold--virtual prisoners--our only
company those dastardly infernal machines, whose very nature we did not
know!

Helplessly I gazed around me. There seemed to be only this one porthole,
open, looking out over the dark and turbulent water, which slipped
ominously past as we gained speed.

Why had Kennedy not foreseen this risk? I glanced at him. He had found
an electric light, connected with the yacht's dynamo, and, before
turning it on, closed and covered the port so that it threw no
reflection out.

Far from being disconcerted, on the contrary, he seemed rather pleased
than otherwise at the unexpected turn of events.

As I looked at our scant and cramped quarters I could see absolutely no
way of getting word to anyone off the _Furious_ who might help us.

What he was working on I did not know, but if it was some sort of
wireless, even if we were able to send a message, what hope was there
that it would get past the delicate wireless detector which this
criminal must have somewhere near for tapping messages that were being
flashed through the air? Had we not heard him say that the signal was to
be an S O S sent, as it were, from the fleet far out on the ocean?

I could well have believed that Kennedy could rig up some means of
communication. But, if the possessor of this terrible infra-red ray, or
wireless wave, secret should learn that we, too, knew it, the only
result that he would accomplish would be to insure our destruction
immediately.

It was a foggy night and a drizzle had set in. The _Furious_ could not
under such circumstances make such good speed as she was accustomed to
make. Fortunately, also, the waves were not running high.

Craig had taken a desperate chance. How would he meet it? I watched him
at work, fascinated by our peril.

Finishing as quickly as he could, he put out our sole electric light,
unscrewed the bulb and attached to the socket a wire which he had
connected with the instrument over which he had spent so many precious
moments.

Through the little porthole he cast a peculiar disk, heavy, such as I
had seen him place so carefully aboard the _Uncas_.

It sank in the water with a splash and trailed along beside the yacht,
held by a wire, submerged, perhaps, ten or twelve feet.

He made a final inspection of the thing as well as he could by the light
of a match, then pressed a key which seemed to close a circuit.

I could feel a dull, metallic vibration, as it were.

"What are you doing?" I asked, looking curiously also at an arrangement,
like a microphone, which he had placed over his ears.

"It works!" he cried excitedly.

"What works?" I reiterated.

"This Fessenden oscillator," he explained. "It's a system for the
employment of sound for submarine signals. I don't know whether you
realize it, but great advance has been made recently since it was
suggested to use water instead of air as the medium for transmitting
signals. I can't stop to explain this apparatus just now, but it is
composed of a ring magnet, a copper tube which lies in an air gap of a
magnetic field, and a stationary central armature. The magnetic field is
much stronger than that in the ordinary dynamo.

"The copper tube, which has an alternating current induced in it, is
attached to solid disks of steel which in turn are attached to a steel
diaphragm an inch thick. In the _Uncas_ I had a chance to make that
diaphragm practically a part of the side of the ship. Here I have had to
hang it overboard, with a large water-tight diaphragm attached to the
oscillator."

I listened eagerly, even if I were not an electrical engineer.

"The same oscillator," he went on, "is used for sending and receiving,
for, like the ordinary electric motor it is also capable of acting as a
generator, and a very efficient one, too. All I have to do is to throw a
switch in one direction when I want to telegraph or telephone under
water, and in the other direction when I want to listen in."

I could scarcely credit what I heard. Craig had circumvented even the
spectacular wireless. He was actually talking through water. Craig had
virtually endowed himself with a sixth sense!

I watched him spellbound. Would he succeed in whatever it was that he
was planning? I waited anxiously.

"There's the answer!" he exclaimed in sudden exultation. "Burke is on
the _Uncas_. He tells me that he went to see Mrs. Petzka and she is with
him--insisted on going, when she heard that her husband had been engaged
by the _Furious_."

He waited a moment.

"You see, Walter," he resumed, "what I am doing is to send out signals
by which the _Uncas_ can locate and follow us. She is fast, but, thank
heaven, this yacht has to go slow tonight. Sound travels in water at a
velocity of about four thousand feet a second. For instance, I find that
I get an echo in about one-twentieth of a second. That is the reflected
sound wave from the bottom, and indicates that we are in water of about
one hundred feet depth. Then I get another echo in something over two
seconds. That is the waves reflected from the _Uncas_, which has been
hovering about, waiting for something to happen. They can't be much more
than a mile and a half away, now. I had expected to signal them from the
shore, a dock or something of the sort, using this oscillator to get
around that fellow's wireless. But we're much better off on the boat."

I looked at him in amazement. "Surrounded by all this junk that may blow
us to kingdom come any second?" I demanded.

"Burke says steam is still up on all the ships tied up in the harbor so
that they can make a dash for it. They are evidently waiting for that S
O S signal."

"That's all right," I said in desperation, "But suppose they blow us up,
first?"

"Blow us up first?" he repeated. "Why, don't you understand? It is not
the _Furious_ that they are after. The whole war fleet that is hanging
around in this part of the Atlantic is to be blown up in mid-ocean, as
part of the plan to aid the escape of the interned ships in New York."

"Oh," I breathed, with a sigh of relief, "that's it, is it?"

"Yes. We'll get in bad all around if we can't stop it--Burke with the
Secret Service and ourselves with Gaskell, who doesn't dream that his
yacht is being used for the exact opposite of the purpose for which he
thinks he has lent it--to say nothing of the mess that our government
will have to face for letting these precious schemers play ducks and
drakes with our neutrality."

We waited eagerly, Kennedy sending out and receiving the submarine
signals, and I peering out anxiously into the almost impenetrable fog.

Suddenly, apparently from nowhere in the shifting mist, lights seemed to
loom up. Instead of stopping, however, the _Furious_ put on a sudden
burst of reckless speed.

The _Uncas_ was no match for her at that game. Would she escape finally,
after all?

A sharp report rang out. The _Uncas_ had sent a shot across our bows, so
dangerously close that it snapped one of the cables that held the mast.

The vibration of our engine slowed, and ceased, and we lay, idly
wallowing in the waves as the revenue cutter, bearing our friend Burke
and help, came up.

A couple of boats put out from the cutter and in almost no time we could
hear the tread of feet and the exchange of harsh words as the government
officers swarmed up the ladder to our deck.

It was only a moment later that the hatch was broken open and we heard
the welcome brogue of Burke, calling, "Kennedy--are you and Jameson all
right?"

"Right here," sang out Craig, detaching the oscillator and replacing the
electric bulb, which he lighted.

The commotion on deck was too great for anyone to make much of finding
us, two stowaways. The Countess was surprised, however, and, I felt,
rather glad to see us at a time when we might, possibly exert some
influence in her favor if matters came to a more serious pass.

There was scarcely time for a word. Burke's men were working quickly.
They had entered the hold, after a word from Kennedy, and far out into
the ocean they were casting the boxes and bags overboard, one at a time,
as fast as they could. They worked feverishly, as Burke spurred them on,
and I must say that it was with the utmost relief that I saw the things
thrown over.

The boxes sank, but rose again and floated, bobbing up and down, at
least some of them, perhaps a third above water and two-thirds below.

It was not for several minutes that I noticed that with those who had
come aboard the _Furious_ from the cutter stood Bettina Petzka. A moment
later she caught sight of Kennedy.

"Where is my husband?" she demanded, running to him.

Kennedy had no chance to reply.

Suddenly a series of flashes shattered the darkness. A terrific roar
seemed to rise from the very ocean, while a rain of sparks lighted up
great spurts of water and then fell back, to perish in the dark waves.
The _Furious_ trembled from end to end.

We looked, startled, at each other. But we were all safe. The things had
been detonated in the water.

"Only the fact that he would have blown himself up prevented him from
blowing up the yacht and all the evidence against him, now that we have
discovered his plot," cried Burke, excitedly, dashing down the deck.

Recovered scarcely from our surprise at the explosion and the queer
actions of the Secret Service man, we rushed after him as best we could,
Craig leading.

He led the way to the little wireless room. The door was bolted on the
inside, but we managed soon to burst it open.

I shall never forget the surprise which greeted us. In a chair, bound
and gagged, as though he had been overcome only after a struggle, sat
Petzka.

Mrs. Petzka threw herself frantically on him, tearing at the stout cords
that held him.

"Nikola--what is the matter?" she cried. "What has happened?"

Through his gag, which she had loosened a bit, he made a peculiar,
gurgling noise. As nearly as I could make out, he was struggling to say,
"He came in--surprised me--seized me--locked the door."

Julia Rovigno stood rooted to the spot--utterly speechless.

There, surrounded by electric batteries, condensers, projectors,
regulators, resonators, reflectors, voltmeters, and ammeters, queer
apparatus which he had smuggled secretly on the _Furious_, before a
strange sort of device, with a wireless headgear still over his ears,
stood the owner of at least two of the liners of the belligerents which
were to have made the dash for the ocean after he had succeeded by his
new wireless ray device in removing the hostile fleet--Count Rovigno
himself.




CHAPTER XIII

THE SUPER-TOXIN


"I've got to make good in this Delaney case, Kennedy," appealed our old
friend, Dr. Leslie, the coroner, one evening when he had dropped
unexpectedly into the laboratory, looking particularly fagged and
discouraged.

"You know," he added, "they've been investigating my office--and now,
here comes a case which, I must confess, completely baffles us again."

"Delaney," mused Craig. "Let me see. That's the rich Texas rancher who
has been blazing a trail through the white lights of Broadway--with that
Baroness Von Dorf and----"

"And other war brokers," interrupted Leslie.

"War brokers?" queried Craig.

"Yes. That's what they call them. They're a new class--people with
something to sell to or with commissions to buy for belligerent
governments. In Delaney's case it was fifty thousand or so head of
cattle and horses, controlled by a syndicate of which he was the
promoter. That's why he came to New York, you know,--to sell them at a
high price to any European power. The syndicate stands to make a small
fortune."

"I understand," nodded Kennedy, interested.

"Just as though there wasn't mystery enough about Delaney's sudden
death," Leslie hurried on, "here's a letter that came to him today--too
late."

Kennedy took the note Leslie handed him. It was postmarked "Washington,"
and read:

     DEAR DALEY:

     I intended writing to you sooner but haven't felt well enough
     since I came here. The strangest thing about it is that the
     doctors I have consulted seem to be unable to tell me
     definitely what is the matter.

     I can tell you I have been badly frightened. I seemed to have a
     lot of little boils on my face and new ones kept coming. I felt
     weak and chilly and had headaches that almost drove me crazy.
     Perhaps the thing, whatever it is, has made me insane, but I
     cannot help wondering whether there may not be something back
     of it all. Do you suppose someone could have poisoned me,
     hoping to ruin my beauty, on which, to a great measure, depends
     my success in my mission to America during the war?

     Since I came here I have been wondering, too, how you are. If
     there should be anything in my suspicions, perhaps it would be
     safest for you to leave New York. There is nothing more I can
     say, but if you feel the least bit unwell, do not disregard
     this warning.

     If you will meet me here, we can arrange the deal with those I
     represent at almost any price you name.

     Try hard to get here.
     As ever,
     LOUISE.

Craig looked up quickly. "Have you communicated with the Baroness?" he
asked.

Dr. Leslie leaned forward in his chair. "The fact is," he replied
slowly, "the woman who calls herself the Baroness Von Dorf has suddenly
disappeared, even in Washington. We can find no trace of her whatever.
Indeed, the embassy down there does not even admit that she is a war
buyer. Oh, the newspapers haven't got the whole Delaney story--yet. But
when they do get it"--he paused and glanced significantly at
me--"there's going to be _some_ sensation."

I recalled now that there had been an air of mystery surrounding the
sudden death of Daley Delaney the day before. At least one of the papers
had called it "the purple death"--whatever that might mean. I had
thought it due to the wild career of the ranchman, perhaps a plain case
of apoplexy, around which the bright young reporters had woven a slender
thread of romance. Kennedy, however, thought otherwise.

"The purple death," he ruminated, turning the case over in his mind.
"Have you any idea what the papers mean by that?"

"Why, it's one of the most grewsome things you ever heard of," went on
Leslie eagerly, encouraged. "In some incomprehensible way the hand of
fate seems to have suddenly descended on the whole Delaney entourage.
First his Japanese servant fell a victim to this 'purple death,' as they
call it.

"He had scarcely been removed to a hospital where, after fighting a
brave fight, he succumbed to the unknown peril, when the butler was
stricken. Delaney himself packed up, to leave, in panic, when suddenly,
apparently without warning, the purple death carried him off. In three
days three of them have died suddenly. Then came this letter from the
Baroness. It set me thinking. Perhaps it _was_ poison--I don't know."

Craig read the letter of the Baroness again. "Most interesting," he
exclaimed energetically as Dr. Leslie finished. "I shall be only too
glad to help you if I can. Could you take us up to Delaney's rooms? Is
the body still there?"

"No, it has been removed to a private undertaking establishment and the
apartment is guarded by police. We can stop at the undertaker's on the
way over to the apartment."

There could be no doubt that Leslie was considerably relieved to think
that Craig would consent to take the case. As for Kennedy, I could see
that the affair aroused his interest to the keenest point.

"Was anyone associated with Delaney in the syndicate here?" inquired
Craig as we settled ourselves in Dr. Leslie's car.

"Yes," answered the coroner, hurrying us along, "another member of the
syndicate was his friend, Dr. Harris Haynes."

"Who is he?" asked Kennedy.

"Haynes has been a veterinary, but found that there was more money in
the cattle business than in practicing his profession. The needs of
European war seemed to offer just the opportunity they needed to reap a
quick fortune."

"I've heard," nodded Craig, "that conditions abroad have led to a great
influx of adventurers with other people's money."

"Yes. According to all accounts, Delaney and Haynes have been leading a
rather rapid existence since they came to New York. It's quite right.
The city is full of queer and mysterious characters, both men and women,
who profess to be agents for various foreign governments, often
unnamed. Delaney and Haynes have met about all of this curious army, I
suppose."

"I see," prompted Craig. "Among them, I take it, was this stunning woman
who calls herself the Baroness Louise Von Dorf. How friendly were they?"

"Well, she spent a great deal of time, when she was in the city, up at
the apartment Delaney had rented."

Leslie and Kennedy exchanged a significant glance. "Who is she?" asked
Craig. "Do you know?"

"No one seems to know. Yet she is always plentifully supplied with money
and they tell me she talks glibly of those whose 'influence' she can
command in Washington."

"But she has disappeared," mused Kennedy. "Were there any others?"

"Haynes hasn't been proof against their wiles," answered the coroner. "I
have found out that he was introduced by one of the 'war brokers' to a
Madame Daphne Dupres."

"And she?"

Leslie shook his head. "I don't know anything about her, except that she
lives at the Hotel St. Quentin--the same place, by the way, where Haynes
makes his headquarters."

Our car pulled up at the private morgue of the burial company to which
Delaney's body had been taken.

We entered, and Kennedy wasted no time in making a careful examination
of the remains of the unfortunate victim.

"I couldn't make anything out of it, even after an autopsy," confessed
Dr. Leslie. "It seemed as though it were something that had been
conveyed by the blood all over the body, something that blocked the
capillaries and caused innumerable hemorrhages into organs and tissues,
and especially nerve centers."

The body seemed to be discolored and variegated in color, with here and
there little marks of boils or vesicles.

"It looks like something that has depleted the red corpuscles of
oxygen," continued Leslie, noticing that Kennedy had drawn off a little
of the body fluids, evidently for future study. "As nearly as I could
make out there had been a cyanosis in a marked degree. He had all the
appearance of having been asphyxiated."

"Which seems to have been enough to suggest to some imaginative mind the
'purple death,'" remarked Kennedy dryly.

Still, I could not help noticing that it was really no exaggeration to
call it the purple death.

One of the morgue attendants had called Dr. Leslie aside and a moment
later he rejoined us.

"They tell me Haynes has been here," he reported. "I left word that any
visitors were to be carefully watched."

"Strange," muttered Kennedy, absorbing Dr. Leslie's latest information
and then looking back at the body, puzzled. "Very strange. Let us go up
to the apartment right away."

Kennedy stowed the little tube in which he had placed the body fluid
safely in his pocket and led the way out again to our waiting car.

Delaney had picked out a fashionable neighborhood in which to live. As
we entered the bronze grilled door and rode up in the elevator, Kennedy
handed each of us a cigar and lighted one himself. I lighted up, too,
thinking that perhaps there might be some virtue in tobacco to ward off
the unseen perils into which we were going.

The wealthy ranchman, evidently, on his arrival in New York had rented
an apartment, furnished, from a lawyer, Ashby Ames, who had gone south
on account of his health.

We entered and found that it was a very attractive place that Ames had
fitted up. At one side of a library or drawing-room opened out a little
glass sun-parlor or conservatory on a balcony. Into it a dining-room
opened also. In fact, the living rooms of the whole suite could be
thrown into one, with this sun-parlor as a center.

Everything about the apartment was quite up-to-date, also. For instance,
I noticed that the little conservatory was lighted brilliantly by a
mercury vapor tube that ran around it in a huge rectangle of light.

Dr. Leslie and the police had already ransacked the place and there did
not seem to be much likelihood that anything could have escaped them.
Still, Kennedy began a searching examination after his own methods,
while we waited, gazing at him curiously.

By the frown on his forehead I gathered that he was not meeting with
much encouragement, when, suddenly, he withdrew the cigar from his
mouth, looked at it critically, puffed again, then moved his lips and
tongue as if trying to taste something.

Mechanically I did the same. The cigar had a peculiar flavor. I should
have flung it away if Kennedy himself had not given it to me. It was not
mere imagination, either. Surely there had been none of that
sweetishness about the fragrant Havana when I lighted it on the way up.

"What is the matter?" I asked.

"There's cyanogen in this room," Craig remarked keenly, still tasting,
as he stood near the sun-parlor.

"Cyanogen?" I repeated.

"Yes, there are artificial aids to the senses that make them much keener
than nature has done for us. For instance, if air contains the merest
traces of the deadly cyanogen gas--prussic acid, you know--cigar smoke
acquires a peculiar taste which furnishes an efficient alarm signal."

Dr. Leslie's face brightened as Kennedy proceeded.

"That is something like my idea," he exclaimed. "I have thought all
along that it looked very much like a poisoning case. In fact, the very
first impression I had was that it might have been due to a cyanide--or
at least some gas like cyanogen."

Kennedy said nothing, and the coroner proceeded. "And the body looked
cyanotic, too, you recall. But the autopsy revealed nothing further. I
have even examined the food, as far as I can, but I can't find anything
wrong with it."

There was a noise at the door, outside in the hall, and Dr. Leslie
opened it.

"Dr. Haynes," he introduced, a moment later.

Haynes was a large man, good-looking, even striking, with a
self-assertive manner. We shook hands, and taking our cue from Craig,
waited for him to speak.

"It's very strange what could have carried Delaney off so suddenly,"
ventured Haynes a moment later. "I've been trying to figure it out
myself. But I must admit that so far it has completely stumped me."

He was pacing up and down the room and I watched him more or less
suspiciously. Somehow I could not get the idea out of my head that he
had been listening to us outside. Now and then, I fancied, he shot a
glance at us, as if he were watching us.

"They tell me at the burial company that you were there today," put in
Dr. Leslie, his eyes fixed on Haynes' face.

Haynes met his gaze squarely, without flinching. "Yes. I got thinking
over what the papers said about the 'purple death,' and I thought
perhaps I might have overlooked something. But there wasn't--"

The telephone rang. Haynes seized the receiver before any of the rest of
us could get to it. "That must be for me," he said with a brusque
apology. "Why--yes, I am here. Dr. Leslie and Professor Kennedy are up
here. No--we haven't discovered anything new. Yes--I shall keep the
appointment. Good-by."

The conversation had been short, but, to me at least, it seemed that he
had contrived to convey a warning without seeming to do so.




CHAPTER XIV

THE SECRET AGENTS


Dr. Leslie looked at Haynes searchingly. "Who was it?" he asked. "Madame
Dupres?"

Haynes did not hesitate. "Yes," he nodded. "I had an appointment with
her and told her that if I was late it would probably be that I had
stopped here."

The answer came so readily that I must confess that I was suspicious of
it.

"Did Madame Dupres know the Baroness Von Dorf?" asked Craig quickly.

"Yes, indeed," returned Haynes, then stopped suddenly.

"But they didn't travel in the same circle, did they?" asked Dr. Leslie,
with the air of the cross-examiner who wished to place on record a fact
that might later prove damaging.

"Not exactly," answered Haynes, with some hesitation.

"You knew her, of course?" added Craig.

Haynes nodded.

"I wonder if you could locate the Baroness," pursued Kennedy.

Haynes seemed to express no surprise at the obvious implication that she
was missing. "I have no objection to trying," he answered simply; then,
with a glance at his watch, he reached for his hat and stick and
excused himself. "I'm afraid I must go. If I can be of any assistance,"
he added, "don't hesitate to call on me. Delaney and I were pretty
closely associated in this deal and I feel that nothing is too much to
ask of me if it is possible to clear up the mystery of his death, if
there is any."

He departed as quickly as he had come.

"I wonder what he dropped in for?" I remarked.

"Whatever it was, he didn't get it," returned Leslie.

"I'm not so sure of that," I said, remembering the brief telephone
conversation with Madame Dupres.

Kennedy did not appear to be bothering much about the question one way
or the other. He had let his cigar go out during Haynes' visit, but now
that we were alone again he continued his minute search of the premises.

He opened a closet which evidently contained nothing but household
utensils and was about to shut the door when an idea occurred to him. A
moment later he pulled from the mystic depths an electric vacuum cleaner
and dragged it over to the sun-parlor.

Without a word we watched him as he ran it over the floor and walls,
even over the wicker stands on which the plants stood, and then over the
floor coverings and furniture of the other rooms that opened into the
conservatory. What he was after I could not imagine, but I knew it was
useless to ask him until he had found it or had some reason for telling
it.

Carefully he removed the dust and dirt from the machine and wrapped it
up tightly in a package.

We parted from Dr. Leslie at the door of the apartment, promising to
keep in touch with him and let him know the moment anything happened.

At the first telegraph office Kennedy entered and sent off a long
message to our friend Burke of the Secret Service in Washington, asking
him to locate the Baroness, if possible, in that city, and to give any
information he might have about either Haynes or Madame Dupres.

"It's still early in the evening," remarked Kennedy as we left the
telegraph office. "Suppose we drop around to the St. Quentin. Perhaps we
may run into our friends there."

The St. Quentin was a favorite resort of foreigners in New York, and I,
at least, entered prepared to suspect everyone.

"Not all these mysterious-looking men and women," laughed Kennedy,
noticing me as we walked through the lobby, "are secret agents of
foreign governments."

"Still they look as if they might give you the 'high sign,'" I replied,
"particularly if you flashed a bankroll."

"I don't doubt it," he agreed, his eye roving over the throng. "I
suspect that Scotland Yard and the Palais de Justice might be quite
pleased to see some faces here rather than on the other side of the
Atlantic."

He drew me into an angle and for some moments we studied the passing
crowd of diplomats and near-diplomats.

A moment later I saw Kennedy bow and, following the direction of his
eyes, looked up to a sort of mezzanine gallery. There were Haynes and a
most attractive woman, talking earnestly.

"Madame Dupres," Craig whispered to me, aside.

She was tall, slender, gowned in the most modish manner, and had a
foreign way about her that would have fascinated one even more
cosmopolitan than a Texas veterinary.

Now and then someone would stop and chat with them and it seemed that
they were on very good terms, at least with a certain group at the St.
Quentin.

Kennedy moved out further into the lobby where he was more noticeable;
then, with a sudden resolution, mounted the steps to the mezzanine floor
and approached Haynes.

"Let me introduce Professor Kennedy, Madame Dupres," presented Haynes.

Kennedy bowed.

Whatever one's opinion of madame, he was forced to admit that she was
clever. It was evident, also, that she and Haynes were on very intimate
terms, also.

"I hope that you will be able to clear up the mystery that the
newspapers have found in Mr. Delaney's death," she remarked. "Mr. Haynes
has told me that he met you tonight with Dr. Leslie. By the way, has he
told you his own theory?" she asked.

"We shall do our best," replied Kennedy, meeting her eye in as
impersonal a manner as it was possible, for it is always difficult to
dissociate a beautiful woman from a case like this and judge her not as
a beautiful woman but on the merits of the case. "No, Mr. Haynes has not
told me his theory--yet."

"I'm very glad to have met you," she added, extending her daintily
gloved hand to Kennedy, "and you may be sure that if there is any way in
which I can be of service I shall expect you to call on me. Just now I
hope you will excuse me. I have some letters to get off--and I will
leave you men to discuss Mr. Haynes' theory without being hampered by a
mere woman. Never mind, Harris," she added as Haynes made as if to
escort her to the ladies' writing room.

As Madame Dupres passed down the steps there was no denying that she
made a splendid impression. Haynes watched her with a glance that was
almost ravenous. There could be no doubt of her influence over him.

As she passed through the lobby she paused at the telegraph desk a
moment, then went into the writing room.

"Yes, I think I have an explanation," began Haynes, when she was out of
sight. "I've been trying to figure out what could have killed Delaney.
Of course I can only guess, but I don't think it is such a bad guess."

"What is it?" asked Craig.

"You remember the mercury vapor light?"

Kennedy nodded.

"Mercury vapor lights of that sort are a pretty good source of
ultra-violet rays sometimes," went on Haynes. "Well, doubtless you know
that various plants belonging to different families produce free prussic
acid. They are really cyanogenetic plants. Light and the assimilation
processes depending on light exert a favorable influence on
cyanogenesis. For instance, a mixture of citric acid with a much
smaller amount of potassium nitrite and a trace of bicarbonate of iron,
if exposed to light, will generate hydrocyanic acid. That, I believe, is
what actually happens in some plant tissues. Animals rarely touch such
plants. I believe that such a process might be aided rather than
retarded by ultra-violet rays. What do you think of it?"

Craig was following Dr. Haynes keenly. As for me, I was astounded by his
frankness. I recalled what Kennedy had already said up in Delaney's
apartment, and watched his face covertly.

"Your explanation is plausible," was all that Craig said. "By the way,
have you found out anything about the Baroness?"

"Not a word, yet," replied Haynes unhesitatingly. "She seems to be out
of town."

"And madame--has she any idea where she is?"

Haynes shook his head. "You may rest assured," replied Haynes in a tone
that was meant to carry conviction, "that if we can find out we shall be
only too happy to do so--ourselves."

There was nothing to be gained by further inquiry here, and I could
imagine that Kennedy was burning with anxiety to get at work on his own
line of inquiry at the laboratory. After a few minutes of conversation
we excused ourselves and left the hotel.

Craig's air of abstraction was not such as to invite further
questioning, and I left him an hour or so later in the laboratory
surrounded by his microscopes, slides, and innumerable test-tubes which
he had prepared for some exceedingly minute investigation in which his
exact soul delighted.

How late he worked I do not know, for I did not hear him come into our
apartment. But he was up very early, in fact woke me up stirring around
the living room.

I had scarcely completed dressing, while he scanned the morning papers
in a vain hope that some stray news item might shed some light on the
mystery in which we were now involved, when the whirr of our door buzzer
announced that we had an unusually early caller.

Kennedy opened the door and admitted a stranger. He was one of those
well-groomed middle-aged men whose appearance denotes with what care
they seek by every means to retain youth that is fast passing. I could
imagine him calmly calculating even his vices.

"My name is Ames--Ashby Ames," he introduced. "Dr. Leslie, the coroner,
has suggested that I see you."

Ames looked as if he had been traveling all night and had not had a
chance to freshen himself up in his haste.

"I've just heard about that trouble down at my apartment," he continued,
"and, though I had planned a trip for my health to the southern resorts,
I thought it best for me to come right back to New York. It's a beastly
mess."

He had thrown his hat vindictively on the table, though his manner to us
was rather that of one seeking advice. "Why," he stormed, "this affair
is the limit! I rent my apartment to an apparently reputable person. And
what do I find? It is not even a mere scandal. It is worse. The place
is closed and guarded--quarantined, as it were. I can't get back into
my own rooms!"

Kennedy smiled. "I can't blame you for feeling vexed, Mr. Ames," he
soothed, "but I'm sure I don't know what I can do for you more than I am
doing. We are making every effort to clear the thing up--and I have been
on the case, you must remember, less than twelve hours."

"Oh, I've no criticism of you," rejoined Ames, somewhat mollified. "I
didn't come here to criticise. I came only because I thought you might
like to know that I was back in town, and because Dr. Leslie mentioned
your name. No, indeed--no criticism. Only," he added, "now that my
vacation is spoiled and I am back in town, there is going to be some
action--that's all."

"It can't come too swiftly for me," encouraged Craig.

"I'm going to jump right into this beastly row," pursued Ames
aggressively. "This morning I'm going to look these people up. They tell
me that Baroness has been spending a good deal of time at my place. Pine
business--eh? She's disappeared. But I'll get after that Haynes and the
Madame Dupres they tell me about--and I'll let you know if I find out
anything."

He had not given Kennedy a chance to say anything, and in fact Kennedy
did not seem to want to say anything yet.

"Just thought I'd drop in," concluded Ames, who hadn't taken a chair,
but now extended his hand to us; "I think I'll drop into a Turkish bath
and freshen up a bit. Keep in touch with me."

We shook hands and Ames departed, bustling out as he had bustled in.

Kennedy looked at me and laughed as the door closed. "If we have many
more people co-operating with us," he exclaimed, "we may resign and let
this case solve itself."

"I don't think that is likely," I replied.

"Not unless we hear from Burke," he agreed. "There is plenty for me to
do in the laboratory--but I do wish Burke would wire."

The morning passed, and still there was no word from Burke.

"I think we might drop around to the St. Quentin for lunch," suggested
Kennedy in the forenoon. "We might pick up some news there."

We had scarcely entered when we met Haynes pacing up and down the lobby
furiously.

"What's the matter?" inquired Craig, eyeing him searchingly.

"Why," he replied nervously, sticking his thumbs into his waistcoat
pockets and then plunging them into his trousers pockets as if it was
with the utmost difficulty he controlled those unruly members from doing
violence to somebody, "that fellow Ames from whom Delaney hired the
apartment had just returned suddenly to town. I saw him talking to
Madame Dupres in the hotel parlor. She seemed a bit nervous, so I went
in to speak to her. But she said everything was all right and that she'd
meet me out here in a few minutes. It's quarter of an hour now. I think
he's threatening her with something."

Haynes was evidently worried. I wondered whether he was afraid that Ames
might worm from her some secret common to the two, for I did not doubt
that Ames was a clever and subtle attorney and capable of obtaining a
great deal of information by his kind of kid-glove third degree.

"I should like to see both of them," decided Craig quickly.

Before Haynes could say anything more, he strode into the hotel parlor.
Haynes and I followed a short distance behind.

There was an air of tense, suppressed excitement in the group, but of
all of us, I felt that Madame Dupres was the coolest.

"I see you've lost no time in getting busy," nodded Craig to Ames.

"No," he replied easily. "This is certainly a very interesting situation
which madame here has just outlined to me."

Haynes came up just in time to catch the last words.

"I say, Ames," he almost roared, "you may be a clever lawyer, but you
must remember that you are also expected to be a gentleman. There are
limits to questioning a woman when she has not the advantage of having a
friend to advise her."

For a moment I thought there was going to be a fight, but Kennedy moved
unobtrusively between the two men. As for Madame Dupres, I felt that
really she was a match for both of them.

Instead of getting mad, however, Ames merely laughed.

"Why, Haynes," he said quietly, "I don't think you ought to complain. I
understand that you, now representing Delaney's Texas syndicate, have
already signed the final contract for the deal with those whom Madame
Dupres represents and have received a certified check from them as a
first payment to bind the bargain."

Haynes turned almost livid, then recovering himself, glanced at Madame
Dupres.

"Why, Harris, I didn't think there was any secrecy about it now," she
said, seeing the change in him. "If there is, I'm sorry."

"There isn't," replied Haynes, quickly recovering his composure. "Only I
just didn't like to see a lawyer, an outsider, quizzing you, that's
all."

Jealousy was stamped in every line of Haynes' face. Ames said nothing,
but it was impossible to escape the look of gratification which he shot
at Kennedy as he brought out the startling new development.

Madame Dupres was clever enough to see that no good could come of
prolonging an interview for which now there was an excuse to break up.

"Take me in to lunch, Harris," she said, slipping her arm familiarly
into his. "Good-morning, gentlemen."

Somehow I felt that she would have liked to add, "And if you see the
Baroness, tell her I have beaten her to it."

Ames watched them depart with an air of cynical satisfaction, paused a
moment, then in turn excused himself from us.

What did it mean? What was behind all this intrigue. Was it merely to
get this cattle contract, big as that was?

We lunched together at the St. Quentin, and it was evident that Madame
Dupres was doing her best to smooth over the ruffled feelings of her
lover.

Luncheon over, Kennedy plunged with redoubled energy into his laboratory
investigation. He said little, but I could tell from his manner that he
had found something that was very fascinating to him.




CHAPTER XV

THE GERM OF ANTHRAX


It was not until the middle of the afternoon that there came a sudden,
brief message from the Secret Service in Washington:

     Mr. Craig Kennedy,
     New York.

     I have located the Baroness Von Dorf in a private sanitarium
     here and will have her in New York tonight by eight o'clock.

     BURKE.

"In a private sanitarium--will have her in New York tonight," reread
Craig, studying the message. "Then it wouldn't seem that there could be
much the matter with her."

For a few moments he paced the laboratory floor, alternately studying
the boards and the yellow telegram. At last, his face seemed to light up
as if he had reasoned something out to his satisfaction. Quickly he
reached for the telephone and called Dr. Leslie.

"I shall have the Baroness here tonight at eight, Leslie," I heard him
say. "Don't tell a soul about it. But I'd like to have you make all the
arrangements to secure the attendance of Haynes, Ames, and Madame Dupres
here just a bit ahead of that time."

There was nothing that I could do to aid Craig more in the hours that
remained than to efface myself, and I did it in the most effectual way I
could think of, compatible with my interest in the case. I rode down to
Dr. Leslie's office and dined hurriedly with him. The only new
information I gleaned was that Haynes had visited him during the
afternoon and had outlined his theory of cyanogen, which certainly
seemed to me to fit in quite readily with the facts.

When we reached the laboratory, early, Kennedy was still absorbed in
studying his microscope. He said nothing, but apparently had gained an
air of confidence which he lacked the night before.

The Baroness had not yet arrived, but a few minutes after us came Ashby
Ames, still complaining about the closing of his apartment and the
inconvenience the whole affair had put him to. Haynes arrived and Ames
cut short his tirade, glancing resentfully at the veterinary as though
in some way he were responsible for his troubles. Madame Dupres arrived
shortly, and I could not help noticing that Haynes was patently jealous
of even the nod of recognition she gave to Ames.

"I don't think I need say that this is one of the most baffling cases
that we have ever had," began Kennedy, with a glance at Dr. Leslie.

"It certainly is," chimed in the coroner, as though he had been appealed
to for corroboration.

"In the first place," resumed Kennedy, "I discovered in the air up there
in Delaney's room just a trace of cyanogen."

Haynes nodded approvingly, glancing from one to the other of us.

"But," added Craig, as if he had built up a house of cards merely to
demolish it, "I don't think that cyanogen was the cause of Delaney's
death--although it furnished the clew."

"What could it have been, then?" demanded Haynes, his face clouding.

Kennedy looked at him calmly. "You've heard of anthrax?" he asked
simply.

"Y-yes," replied Haynes, meeting his eye fixedly. "Murrain--the cattle
disease."

"That is so deadly to human beings sometimes," added Craig. "Well, I've
found something very much like anthrax germs in the sweepings that I
took up with the vacuum cleaner up there."

Dr. Leslie was listening intently.

"I can't see how it could have been anthrax," he put in, slowly shaking
his head. "Why, Kennedy, the symptoms were entirely different."

"No, this was a poisoning of some kind," added Dr. Haynes. "Dr. Leslie
himself tells me that you found traces of cyanogen in the air--and you
have just said so, too."

Kennedy indicated the microscope. "Take a look at that slide under the
lens," he said simply.

I was nearest and as he evidently meant each of us to look, I did so.
Under the high-power lens I could see some little roundish dots moving
slowly through the field.

Haynes looked next. "But, Professor Kennedy," he objected, almost as
soon as he had time for a good look, "the bacilli of anthrax have
normally the form of straight bars strung together in a row."

"Yes, rod bacilli," added Dr. Leslie, also looking. "Like long rows of
hyphens, slender cylindric, non-motile chains joined end to end."

We looked at Craig inquiringly.

"Like that," he indicated, substituting another slide.

We looked again. The field had somewhat the appearance of an exaggerated
war map with dark units of supposed troops.

"That's it," nodded Haynes.

Kennedy removed the slide. "Those are some anthrax germs I obtained here
in the city from a pathologist," he said, turning a switch that threw on
in a lamp a peculiar, purplish light. "This is a machine for the
propagation of ultra-violet rays."

He placed the second slide, with its germs of anthrax, in the light,
allowing it to play over the slide.

"Now look," he said.

We did. Something had evidently happened. The chains were broken and
smaller units were moving.

"If anthrax germs are exposed for a few seconds, even, to ultra-violet
light, they change more or less," Kennedy proceeded. "These new forms
are not stable. They quickly change back again into their original
form."

For about ten minutes we sat in silence while the weird light played as
if with ghostly fingers on the deadly invisible peril on the little
glass microscope slide.

"But if the action of the ultra-violet rays is continued," went on
Craig, "the microbe changes into a coccus, and then into a filiform
bacillus. This form is stable. And the germ is changed in other
respects than mere shape. It has entirely new characteristics. It is a
true mutation. It produces a disease entirely different from that of the
anthrax bacillus from which it is derived. I have tried it on a guinea
pig--and it has died in forty-eight hours."

Startled as I was by this remarkable discovery, I yet had time to watch
Haynes. He had not taken his eyes off Kennedy once since he began to
speak.

"In anthrax," continued Craig, "an autopsy reveals an enormous serous
swelling, about the point of inoculation, with a large gathering of
microbes which are formed in the blood and spleen. Death seems to be due
to septic poisoning. But this new microbe--super-toxicus, I think it
might well be named--produces no swelling and scarcely any microbes are
to be found in the blood.

"The lungs are inflamed, with innumerable small abscesses. That is the
internal form of the disease from breathing in the spores of these
microbes. It has an external form, also, but that is by no means so
deadly. One would say that death from the internal form of the disease
was due to poisoning. The toxin of this microbe produces a sort of
asphyxiation, cutting off and eating up the supply of oxygen.

"Such a condition is called cyanosis. That is why in Delaney it had the
appearance of cyanogen poisoning. The effect was the same. But the trace
of cyanogen in the air was merely a coincidence, Haynes. It wasn't
cyanogen that killed. But it was something quite as deadly--and far
harder to trace--a new germ!"

We listened, fascinated.

"A French scientist, a woman, Madame Victor Henri, a student at the
Pasteur Institute in Paris, has shown that a new microbe can actually be
created from anthrax germs by the use of ultra-violet rays. It is not
like anthrax, but may be quite as deadly, perhaps more so.

"This discovery," he added earnestly, "proves for the first time that a
living organism can be changed suddenly and artificially into an
organism of a new and entirely different species. One can scarcely
appreciate the importance of it. If the germs of different diseases can
be transformed, the germ of one being changed into the germ of another,
it will be a first step toward finding a way to change deadly germs into
others that will be quite innocuous."

Kennedy paused impressively to let the horror of the thing impress
itself on our minds. "But this criminal has been working for evil
purposes in the wrong direction--creating a disease in order to cover up
his tracks!"

One could almost feel the net closing.

"Delaney has fallen a victim to a new germ of which someone learned in
Paris," Craig raced on, inexorably, "a germ that would never, in all
probability, be discovered by American doctors, a germ that poisoned
safely, surely, and swiftly by its deadly super-toxin."

A few moments before there had been a noise of a car outside the
laboratory window, but in the excitement of Craig's startling revelation
we had paid no attention.

A hasty tap at the door interrupted him. Before he could open it a very
beautiful woman burst in, followed by a thick-set Irishman.

It was the Baroness Von Dorf and our friend Burke.

For a moment the two women fairly glared at each other.

"I've heard what Professor Kennedy just said," cried the Baroness, her
eyes snapping fire. "Fortunately, I had to go to Washington and was able
to protect myself by seeming to disappear. If I had stayed in New York
another day, there is no telling what might have happened to me.
Probably I should have got this disease internally instead of
externally. As it was, I thought it would come near ruining my beauty."

Burke tossed a yellow slip of paper on the table near Kennedy. "That is
something one of our special agents found and brought me today," he
exclaimed.

Kennedy picked it up and read it, while Burke faced us.

The Secret Service man fixed his eyes on Madame Dupres. "As for you, my
dear lady," he challenged, "how do you happen to be in New York with one
of the greatest international crooks that ever troubled the police of
five continents?"

"I--in New York?" she shrugged coolly. "Monte Carlo, Paris, Vienna,
London--all were dead. I had to come here to make a living."

The Baroness drew herself up as if to speak.

"You scoundrel--you will give my apartment a bad name with your dirty
cattle plague--will you!" ground out a voice harshly at my side.

I turned quickly. Ames had clutched Haynes by the throat. We were all on
our feet in a moment, but there was no need of separating them. The
veterinary was more than a match for the hot-headed little lawyer.

"Someone," shot out Kennedy, wheeling quickly, "figured that the cattle
deal could be brought about quite naturally if Delaney were dead and the
Baroness out of the way. Later he could reap the profit and carry off
Madame Dupres into the bargain. And if anything were ever discovered,
what more natural than to throw the suspicion on a veterinary who was
supposed to know all about anthrax?"

Just then a half circle of nickled steel gleamed momentarily in
Kennedy's hands. I recognized it as a pair of the new handcuffs that
uncoiled automatically, gripping at a mere touch.

I saw it all in a flash, as I picked up the paper that Burke had tossed
to Kennedy.

It was a telegram, and read:

     A. A., The New Stratfield, Washington.
     Return immediately. Coroner has Craig Kennedy on case.
     D. D.

"It was a devilish scheme," snapped Kennedy, as the handcuffs circled
the fake lawyer's wrists, "but it didn't work, Ames."




CHAPTER XVI

THE SLEEPMAKER


"Perhaps race-horses may be a little out of your line, Mr. Kennedy, but
I think you will find the case sufficiently interesting to warrant you
in taking it up."

Our visitor was a young man, one of the most carefully groomed and
correctly dressed I have ever met. His card told us that we were honored
by a visit from Montague Broadhurst, a noted society whip, who had
lavished many thousands of dollars on his racing-stable out on Long
Island.

"You see," he went on hurriedly, "there have been a good many strange
things that have happened to my horses lately." He paused a moment, then
continued: "They have been losing consistently. Take my favorite, Lady
Lee, for instance."

"Do you think they have been doped?" asked Kennedy quickly, eager to get
down to the point at issue, for I had never known Craig to be interested
in racing.

"I don't know," replied the young millionaire, drawing his eyelids
together reflectively. "I've had the best veterinary in the country to
look my stable over, and even he can't seem to find a thing that's
wrong."

"Perhaps a visit out there might show us something," cut in Kennedy, as
though he were rather favorably impressed, after all, by the novelty of
the case.

Broadhurst's face brightened.

"Then you will take it up--you are interested?" he queried, adding, "My
car is outside."

"I'm interested in anything that promises a new experience," returned
Craig, "and I think this affair may be of that sort."

Broadhurst's stable was out on central Long Island, not far from the
pretty and fashionable town of Northbury. As we passed down the main
street, I could see that Broadhurst was easily the most popular of the
wealthy residents of the neighborhood. In fact, the Broadhurst racing
stables were a sort of local industry, one of the show-places of
Northbury.

As we swung out again into the country, we could see ahead of us some
stable-boys working out several fine thoroughbreds on Broadhurst's
private track, while a group of grooms and rubbers watched them.

The stable itself was a circular affair of frame, painted dark red,
which contrasted sharply with the green of the early summer trees.
Broadhurst's car pulled up before a large office and lounging-room at
one end, above which Murchie, his manager and trainer, had his suite of
rooms.

The office into which Broadhurst led us was decidedly "horsey." About
the place were handsomely mounted saddles, bridles, and whips, more for
exhibition than for use. In velvet-lined cases were scores of glittering
bits. All the appointments were brass-mounted. Sporting prints,
trophies, and Mission easy chairs made the room most attractive.

Before a desk sat Murchie. As I looked at him, I thought that he had a
cruel expression about his eyes, a predatory mouth and chin. He rose
quickly at the sight of Broadhurst.

"Murchie, I would like to have you meet my friends, Mr. Kennedy and Mr.
Jameson," introduced Broadhurst. "They are very much interested in
horses, and I want you to show them about the place and let them see
everything."

We chatted a moment, and then went out to look at the horses.

In the center of the circular group of stalls was a lawn. The stalls of
the racers in training were large box stalls.

"You have certainly trained a great horse in Lady Lee," remarked Kennedy
casually, as we made our way around the ring of stalls.

Murchie looked up at him quickly.

"Until the last few races, I thought so," he replied, stopping before
the stall of the famous racer and opening the door.

Lady Lee was a splendid three-year-old bay, a quivering, sensitive,
high-strung animal. Murchie looked at her a moment, then at us.

"A horse, you know," he said reflectively, "is just as ambitious to win
a race as you are to win success, but must have hard training. I keep
horses in training eight or nine months out of the year. I get them into
shape in the early spring and am very careful what they eat. If they get
a vacation, they may eat green foods, carrots, and grass in open field;
but when we prepare them for the ring or a race, they must have grain,
bran, and soft foods. They must have careful grooming to put the coats
in first-class condition, must be kept exquisitely clean, with the best
ventilation."

"How about exercise?" asked Kennedy.

"Well," replied Murchie, "I work out horses according to age, with the
distance for fast work gradually increased."

Our trip through the wonderful stable over, we returned to the office,
Murchie walking ahead with Broadhurst. As we reached the door,
Broadhurst turned to us.

"I hope you will pardon me," he said, "but there is some business up at
the house that I must attend to."

"Oh, Mr. Broadhurst," interjected Murchie, "before you go back to town,
I want to talk over with you some of the changes that ought to be made
about the boys here, as well as their food and quarters."

"All right," returned Broadhurst; "jump into the car and ride with me.
We can talk on the way, and you can come right back. I'll pick you
gentlemen up later."

Kennedy nodded, quick to perceive the cue that Broadhurst had given him
to watch the stables without Murchie watching us.

We sat down in the office, and I looked about at the superb fittings.

"Do you think it is possible for an owner to make a financial success of
racing without betting?" I asked Kennedy.

"Possible, but highly improbable," returned Craig. "I believe they
consider that they have an excellent year whenever they clear expenses.
I don't know about Broadhurst, but I believe that a good many owners
don't bet on their horses. They have seen the glaring crookedness of the
thing, especially if they have happened to be officers of jockey clubs
or stewards of various race-meets. Personally, I should think a man of
Broadhurst's stamp would not permit himself to be made a victim of the
leeches of the turf--although he may wager a bit, just to give zest to
the race. American racing has often been called a purely gambling
affair, and I think, before we get through, that we shall see the reason
for much of the public opposition to it."

Just then a small man entered the office, and, seeing us, asked for Mr.
Murchie. His face was pinched and thin. He wore the latest cut of
clothes, but was so very slight that his garments hung loosely on him.
One could well imagine that he had tried all sorts of schemes to keep
himself down toward the hundred-and-ten-or-twelve-pound mark. He was the
very type of jockey. He introduced himself to us as Danny McGee, and I
recognized at once the famous twenty-five-thousand-dollar-a-year rider,
who had so often successfully defended the Broadhurst colors.

"Mr. Murchie has gone up to the house," replied Kennedy to his inquiry.

McGee looked us over a minute.

"Friends of his?" he asked, in a confidential tone. Kennedy smiled.

"Of Mr. Broadhurst's," he said quietly.

There was a noticeable change in McGee's manner.

"Just out here to look the stable over," went on Kennedy; "a wonderful
place."

"Yes; we think so," assented McGee.

"It seems strange," ventured Kennedy, "that, with all this care, Lady
Lee should not be keeping up to her record."

McGee glanced at us keenly.

"I don't understand it myself," he said. "I suppose lots of people must
think it is the fault of the jockey, but I have certainly earned my
salary lately with that filly. I don't know what's the matter. I've done
the best I can, but in spite of it there's something wrong."

He spoke with an air of genuine worry, and, although I tried hard, I
must confess that I found it impossible to fathom him.

"The filly," he added, "has her regular work-out and the regular feed,
and yet she seems to be all tired out most of the time. Even the
veterinaries can't seem to find out what's the matter."

An awkward silence followed, during which both Kennedy and myself
endeavored to conceal our ignorance of horses by saying nothing about
them. Finally McGee rose and excused himself, saying that he would be
back soon.

There were still a few minutes before Murchie would be likely to return.
Without saying a word, Kennedy rose and opened the door which led into
the stable. Across the lawn in the center we could see a man's figure
rapidly retreating through the main entrance, and, somehow or other, I
felt that at the sound of the opening of our door he hastened his pace.

Kennedy walked quickly around the circle of box stalls until he came
again to Lady Lee. He entered the stall and looked the famous racer over
carefully. I was wondering what, if anything, he expected to find, when,
almost before I knew it, I saw him jab a little hypodermic needle into
her neck and withdraw a few drops of blood.

Lady Lee reared and snorted, but Kennedy managed to quiet her. He
returned the hypodermic, with these few drops of blood, carefully into
its case again, and we made our way back to the office.

A few minutes later, the drone of Broadhurst's car told us that Murchie
had returned. We resumed the talk about horses, upstairs in Murchie's
own apartment, which consisted of living-rooms, a library, and bath. It
was a luxuriously appointed place, in keeping with the tastes of its
occupant. We sat down in the library.

I was quite interested in looking about me. For one thing, Murchie's
idea of art seemed to be a curious blending of horse and woman. There
were pictures of all the string of Broadhurst winners, interspersed with
Venuses and actresses.

On a little table I noticed, at length, a colored photograph in an oval
gilt frame. It was of a very beautiful girl. She was something over
medium height, with a fine figure, golden hair, and deep-blue eyes.
Somehow, I recalled that I had seen that face before, and when I caught
Kennedy looking at it from time to time, I was certain of it.

Suddenly it flashed over me that the picture had been published in the
_Star_. It was Cecilie Safford. I remembered having read of Murchie's
escapades, one of which was his elopement with a pretty young
stenographer whom he had met at the horse show a couple of years before.

The talk ran along about horses still, but I noticed that Kennedy was
even more interested in Murchie's pictures, now, than in his
conversation. In the place of honor, over the mantel, hung a portrait,
in an artistic panel, of a slender girl with dark hair and hazel eyes,
with a soft, swanlike throat and neck, and a somewhat imperious manner
of carrying her head.

I followed Craig's glance across the room. There, in a frame upon the
wall in a corner, hung an enlargement of a group photograph. It was of a
middle-aged woman, a little boy, and a little girl. Then I remembered
the whole story.

At the time of his elopement, Murchie had a wife living. Since then he
had been divorced. Although he had promised to marry Cecilie when the
divorce was obtained, he was now engaged to marry a wealthy girl, Amélie
Guernsey.

Broadhurst returned shortly for us, and we made another tour of the
stable, on the outside, including the quarters of the innumerable
employees. Finally, at a hint from Kennedy that we had seen enough for
the present, Broadhurst motored back to the city with us.




CHAPTER XVII

THE INTER-URBAN HANDICAP


That night, instead of going to the laboratory, we walked down Broadway
until we came to a hotel much frequented by the sporting fraternity.

We entered the restaurant, which was one of the most brilliant in the
white-light region, took a seat at a table, and Kennedy proceeded to
ingratiate himself with the waiter, and, finally, with the head waiter.
At last, I saw why Kennedy was apparently wasting so much time over
dinner.

"Do you happen to know that girl, Cecilie Safford, that Broadhurst's
trainer, Murchie, eloped with?" he asked.

The head waiter nodded.

"I used to know her," he replied. "She used to come in here a good deal,
but you won't find her in the Broadway places any more these days. She's
more likely to be over on Eighth Avenue." He mentioned the name of a
cabaret saloon.

Kennedy paid the check and again we started out. We finally entered a
place, down in a basement, and once more Kennedy began to quiz the
waiter.

This time he had no trouble. Across the room, the waiter pointed to a
girl, seated with a young fellow at a round table. I could scarcely
believe what I saw. The face had the same features as that of the
photograph in the oval gilt frame in Murchie's apartment, but it was not
the same face.

As I studied her, I could imagine her story without even hearing it. The
months of waiting for Murchie to marry her and his callous refusal had
been her ruin. Cecilie had learned to drink, and from that had gone to
drugs.

Her mirror must have told her that she was not the same girl who had
eloped with Murchie. Her figure had lost its slim, beautiful lines. Her
features were bloated. Her eyes were smaller, and her lips were heavy.
Her fresh color had disappeared. She had a gray, pasty look. All she
had--her beauty--had vanished.

Murchie had been divorced, and was about to marry--but not Cecilie. It
was to a young and lovely girl, with such a face of innocence as Cecilie
had when Murchie had first dictated a letter to her in the office at the
horse show, and had fascinated her with his glittering talk of wealth
and ease. The news of his engagement had driven her frantic.

Curiously enough, the young fellow with her did not seem to be
dissipated in the least. There was, on the contrary, an earnestness
about him that one was rather sorry to see in such a place. In fact, he
was a clean-cut young man, evidently more of a student than a sport. He
reminded me of some one I had seen before.

I was getting rather interested in an underworld cabaret when, suddenly,
Kennedy grasped my arm. At the same moment, a shot was fired.

We jumped to our feet in time to see a young tough, with a slouch like
that of the rubbers and grooms at Broadhurst's. The fellow who had been
seated with Cecilie was struggling with him for the possession of a
pistol, which had been discharged harmlessly. Evidently the tough had
been threatening him with it.

The waiters crowded around them, and the general _mêlée_ about Cecilie's
table was at its height when a policeman came dashing in on the run.

The arrest of the gunman and his opponent, as well as of Cecilie as a
witness, seemed imminent. Kennedy moved forward slowly, working his way
through the crowd, nearer to the table. Instead of interfering, however,
he stooped down and picked up something from the floor.

"Let's get out of this as quickly as possible, Walter," he whispered,
turning to me.

When we reached the street, he stopped under an arc-light, and I saw him
dive down into his pocket and pull out a little glass vial. He looked at
it curiously.

"I saw her take it out of her pocketbook and throw it into a corner as
soon as the policeman came in," he explained.

"What do you think it is?" I asked. "Dope? That's what they all do if
they get a chance when they are pinched--throw it away."

"Perhaps," answered Kennedy. "But it's worth studying to see what drug
she is really using."

Late as it was, Craig insisted on going directly to the laboratory to
plunge into work. First, he took the little hypodermic needle with which
he had drawn several drops of blood from the race-horse, and emptied the
contents into a test tube.

Finding that I was probably of more use at home in our apartment asleep
than bothering Kennedy in the laboratory, I said good-night. But when I
awoke in the morning, I found that Kennedy had not been in bed at all.

It was as I expected. He had worked all night, and, as I entered the
laboratory, I saw him engaged in checking up two series of tests which
he had been making.

"Have you found anything yet?" I asked.

He pointed to a corner where he kept a couple of guinea-pigs. They were
sound asleep, rolled up in little fluffy balls of down. Ordinarily, in
the morning, I found the little fellows very frisky.

"Yes," he said; "I think I have found something. I have injected just a
drop of blood from Lady Lee into one of them, and I think he's good for
a long sleep."

"But how about the other one?" I asked.

"That's what puzzles me," ruminated Kennedy. "Do you remember that
bottle I picked up last night? I haven't finished the analysis of the
blood or of the contents of the bottle, but they seem to contain at
least some of the same substances. Among the things I find are
monopotassium phosphate and sarcolactic acid, with just a trace of
carbon dioxide. I injected some of the liquid from the bottle into the
other fellow, and you see what the effect is--the same in both cases."

The telephone bell rang excitedly.

"Is there a Mr. Kennedy there?" asked Long Distance, adding, without
waiting for an answer, "Hold the wire, please."

I handed the receiver to Kennedy. The conversation was short, and as he
hung up the receiver, Craig turned to me.

"It was Broadhurst at the Idlewild Hotel," he said quickly. "Today is
the day of the great Interurban Handicap at Belmore Park with stakes of
twenty-five thousand dollars. Usually they take the horse over to the
track at least a week or two before the race, but as Broadhurst's stable
is so near, he didn't do it--hoping he might keep a better watch over
Lady Lee. But she's no better. If the horse is being tampered with, he
wants to know who is doing it and how."

Kennedy paused a moment, then went over to a cabinet and took from it a
bottle and a very large-sized hypodermic.

We must have been among the first on the field at Belmore Park that day.
Lady Lee had been sent over there after we left Northbury the day
before, under the care of Murchie and McGee, and had been stabled in the
quarters on the track which had been assigned to Broadhurst.

With Broadhurst, who was waiting for us, we lounged across the field in
the direction of the stables. There was no doubt about it, Lady Lee was
not in prime condition. It was not that there was anything markedly
wrong, but to the trained observer the famous race-horse seemed to lack
just a trifle of the _élan_ which meant a win.

While Murchie and the jockey were talking outside to Broadhurst, Kennedy
slipped into the stall to look at the racer.

"Stand over by that side of the door, Walter," he muttered. "I'll be
through in just a minute. I want you to act as a cover."

Quickly he jabbed the hypodermic into the horse and pressed down the
plunger.

Lady Lee reared and snorted as she had done before when he extracted the
blood, and instantly Murchie and McGee were crowding past me. But the
instant had been long enough for Kennedy. He had dropped the hypodermic
into his pocket and was endeavoring to soothe the horse.

"I guess she's not very much used to strangers," he remarked coolly. No
one thought any more of it, apparently.

A few minutes later, Broadhurst rejoined Kennedy and myself. I could see
that his face showed plainly he was greatly worried.

"I don't understand it," he kept repeating. "And what is worse, the news
seems to have leaked out that Lady Lee isn't fit. The odds are going
up."

Kennedy looked at him fixedly a moment.

"If you want to win this race, Mr. Broadhurst," he remarked in a low
tone, "I should advise you to watch Lady Lee every minute from now until
the start."

"What do you mean?" whispered Broadhurst hoarsely.

"I can't say yet--only watch."

While Broadhurst and Kennedy hovered about the stall on one pretext or
another, watching both Murchie and McGee as they directed the rubbers
and others who were preparing for the race, I watched the trainer and
the jockey minutely. They certainly did nothing, at least now, to excite
suspicion. But might not the harm have already been done? Was it too
late?

When the bell sounded the paddock call, McGee led the racer out of the
stall and to the paddock. Presently the field, Lady Lee at the fore,
walked past the grandstand and cantered slowly down the course to the
starting-post.

Meanwhile, following Broadhurst, we had already made our way over to the
club-house enclosure.

It was not like the old days when there was money everywhere, thousands
of dollars in plain sight, in the cash-boxes of the bookmakers, when men
rushed wildly about with handfuls of bills of large denomination and
bets were made with frequent rapidity. And yet there was still a certain
maelstrom of the betting-ring left; but the bookmakers had to carry
everything in their heads instead of setting it down on paper. I knew
the system, and knew that, in spite of the apparent ease with which it
seemed possible to beat it, welshing was almost unheard of.

The grandstand was crowded, although it was quite a different crowd from
that at race meets of former times and on other tracks. Belmore Park lay
within motoring distance of the greatest aggregation of wealth and
fashion in the country. It was a wonderful throng. The gay dresses of
the women mingled kaleidoscopically with the more somber clothing of the
men.

Every eye in that sea of moving humanity seemed to be riveted on Lady
Lee and her rider. It was a pretty good example of how swiftly inside
news at the race-track may become public property. Ill news, on this
occasion, seemed to have traveled apace. Field-glasses were leveled at
the horse which should have been the favorite, and one could tell, by
the buzz of conversation, that this race was the great event of the
season. As the jockeys maneuvered for position, one could almost feel
that some wonderful feats of memory were being performed by the
bookmakers. The odds, during the morning, had gradually lengthened
against Lady Lee.

Like all thoroughbreds, Lady Lee had a most delicate organism, and the
good rider, in such a case, was the one who understood his mount. McGee
had, in the past at least, that reputation. He had reached pretty near
the top of his profession by knowing how to deal with horses of all
types. All this and more I had picked up from the gossip of the track.

The barrier was sprung and the flag dropped. They were off! The
grandstand rose in a body.

For a moment, it seemed to me that McGee had lost his nerve. Alertness
at the post is an important factor. He had not got away from the barrier
ahead of the field. Another rider, too, had got the rail, and hence the
shortest route. I wondered whether, after all, that had been the trouble
all along, for nothing can win or lose a race quicker or better than
those little failures of the jockey himself.

Lady Lee, I had heard it said, was one of those horses that do not
require urging, but go to the front naturally. Just now, it did not seem
that she was beaten, but that she lacked just the power to lead the
field. Did McGee figure that the horses ahead of him were setting such a
fast clip that they would drop back to him before the race was over?

Cleverly, however, he avoided being pocketed, as those ahead of and
beside him tried to close in and make him pull up.

Around they went until the horses looked to the naked eye like toys
strung on wires. Only the tension of the crowd made one feel that this
was no play; it was deadly serious sport. On they sped, watched in a
lull of deathly stillness. Surely, I felt, this was indeed a great
sight--this acid test of the nerves of men and animals pitted against
one another.

They were coming into the stretch now!

Suddenly, it seemed that, by some telepathic connection, both the horse
and the rider caught the electric tension which swayed us in the
club-house enclosure.

I myself was carried away by the frenzied spirit of the race. Broadhurst
was leaning forward, oblivious of everything else in the world,
straining his eyes through a field-glass. Murchie was watching the race
with a supercilious air, which I knew was clearly assumed.

On they came!

I could not help wondering whether McGee had not really planned to throw
the race. Would he, perhaps at the last moment, lose his nerve?

Lady Lee suddenly shot through the field. A mighty shout rose from the
entire grandstand.

It was over in a matter of seconds. She had finished first by a
half-length! She had won the classic and the rich stakes.

Pandemonium seemed to reign in the club-house inclosure. Broadhurst
slapped Murchie over the back with a blow of congratulation that almost
felled him. As for McGee, they nearly carried him off the field on their
shoulders. Only Kennedy seemed to be calm. The race had been won--but
had the problem been solved?

Broadhurst seemed to have forgotten all about his previous appeal to
Kennedy in the unexpected joy of winning.

We paused awhile to watch the frantic crowd, and once, I recall, I
caught sight of a stunning, dark-haired woman grasping Murchie's both
hands in an ecstasy of joy. Instantly I recognized Amélie Guernsey.

As Kennedy and I motored back to the city alone, he was silent most of
the way. Only once did he make a remark.

"The Belmore Inn," he said, as we passed a rather cheap road-house some
distance from the track. "That's where I heard one of the rubbers say
the former Mrs. Murchie was living."

That night, Craig plunged back again into work in the laboratory, and I,
having nothing else to do, wrote a feature story of the great race for
the _Star_.

Kennedy made up for the rest he had lost and the strain of the day by a
long sleep; but early in the morning the telephone bell rang
insistently. Kennedy bounded out of bed to answer it.

I could gather nothing from the monosyllables which he uttered, except
that the matter under discussion was profoundly serious. Finally, he
jammed down the receiver.

"Good God, Walter," he exclaimed, "Murchie's been murdered!"




CHAPTER XVIII

THE TOXIN OF FATIGUE


He gave me no time for questions, and I had no ability to reconstruct my
own theory of the case as we hustled into our clothes to catch the early
morning train.

"Broadhurst is at the Idlewild Hotel," Kennedy said, as we left the
apartment, "and I think we can make it quicker by railway than by
motor."

The turfman met us at the station.

"Tell me just what happened," asked Kennedy.

"No one seems to understand just what it was," Broadhurst explained,
"but, as nearly as I remember, Murchie was the lion of the Idlewild
grillroom all the evening. He had 'come back.' Once, I recall, he was
paged, and the boy told him someone was waiting outside. He went out,
and returned, considerably flushed and excited.

"'By George,' he said, 'a man never raises his head above the crowd but
that there's somebody there to take a crack at it! There must have been
some crank outside, for before I could get a look in the dark, I was
seized. I managed to get away. I got a little scratch with a knife or a
pin, though,' he said, dabbing at a cut on his neck."

"What then?" prompted Kennedy.

"None of us paid much attention to it," resumed Broadhurst, "until just
as another toast was proposed to Lady Lee and someone suggested that
Murchie respond to it, we turned to find him huddled up in his chair,
absolutely unconscious. The house physician could find nothing wrong
apparently--in fact, said it was entirely a case of heart failure. I
don't think any of us would question his opinion if it had not been for
Murchie's peculiar actions when he came back to the room that time."

Murchie's body had been removed to the local undertaking establishment.
As Broadhurst drove up there and we entered, Kennedy seemed interested
only in the little jab and a sort of swelling upon the neck of the dead
man. Quickly he made a little incision beside it, and about ten or a
dozen drops of what looked like blood-serum oozed out on a piece of
gauze which Craig held.

As we turned to leave the undertaker's, a striking, dark-haired girl,
with the color gone from her cheeks, hurried past us and fell on her
knees beside Murchie's body. It was the woman who had congratulated him
the day before, the woman of the panel--Amélie Guernsey.

I had not noticed, up to this point, another woman who was standing
apart in the crowd, but now I happened to catch her eye. It was the
woman whose picture with the two children hung in Murchie's apartment.
Kennedy drew me back into the crowd, and there we watched the strange
tragedy of the wife that was and the wife that was to have been.

Craig hurried back to the city after that, and, as we pushed our way up
the ramp from the station, he looked hastily at his watch.

"Walter," he said, "I want you to locate Cecilie Safford and let me
know at the laboratory the moment you find her. And perhaps it would be
well to start at the police station."

It seemed to me as though the girl whom we had found so easily the
evening before had now utterly disappeared. At the police station she
had not been held, but had given an address which had proved fictitious.
At the cabaret saloon no one had seen her since the incident of the
fight.

As I left the place, I ran into Donovan, of the Tenderloin squad, and
put the case to him. He merely laughed.

"Of course I could find her any time I wanted to," he said. "I knew that
was a fake address."

He gave me the real address, and I hurried to the nearest telephone to
call up Craig.

"Have Donovan bring her over here as soon as he can find her," he called
back.

When I arrived at the laboratory, I found Kennedy engrossed in his
tests.

"Have you found anything definite?" I asked anxiously.

He nodded, but would say nothing.

"I've telephoned Broadhurst," he remarked, a moment later. "You remember
that the former Mrs. Murchie was at Belmore Inn. I have asked him to
stop and get her on the way down here in the car with McGee, and to get
Amélie Guernsey at the Idlewild, too." He continued to work. "And, oh
yes," he added: "I have asked Inspector O'Connor to take up another
line, too."

It was a strange gathering that assembled that forenoon. Donovan arrived
soon after I did, and with him, sure enough, was Cecilie Safford. A few
moments later Broadhurst's car swung up to the door, and Broadhurst
entered, accompanied by Amélie Guernsey. McGee followed, with the former
Mrs. Murchie.

"I don't want another job like that," whispered Broadhurst to Kennedy.
"I'm nearly frozen. Neither of those women has spoken a word since we
started."

"You can hardly blame them," returned Kennedy.

Mrs. Murchie was still a handsome woman. She now carried herself with an
air of assumed dignity. Amélie Guernsey had regained her color in the
excitement of the ride and was, if anything, more beautiful than ever.
But, as Broadhurst intimated, one could almost feel the frigidity of the
atmosphere as the three women who had played such dramatic parts in
Murchie's life sat there, trying to watch and, at the same time, avoid
each other's gaze.

The suspense was relieved when O'Connor came in in a department car.
With him were the young man who had been seated with Cecilie at the
table the night of the fight and also the gunman.

"The magistrate in the night court settled the case that night,"
informed O'Connor, under his breath, laying down two slips of paper
before Kennedy, "but I have their pedigrees. That fellow's name is
Ronald Mawson," he said, pointing to Cecilie's companion, then
indicating the gunman, "That's Frank Giani--Frank the Wop."

I watched Mawson and Cecilie closely, but could discover nothing. They
scarcely looked at each other.

McGee, however, glared at both Mawson and the gunman, though none of
them said a word.

"They used to be out there as stable-boys at Broadhurst's," I heard
O'Connor continue, in a whisper. "I think they had a run-in and were
fired. Each says the other got him in wrong."

A moment later Kennedy began:

"When you came to my laboratory the other day, Mr. Broadhurst," he said,
"you remarked that perhaps this case might be a little out of my line,
but that I might find it sufficiently interesting. I can assure you that
I have not only found it interesting, but astounding. I have seldom had
the privilege of unraveling a mystery which was so cleverly rigged and
in which there are so many cross-currents of human passion."

"Then you think Lady Lee was doped?" asked Broadhurst.

"Doped?" interjected McGee quickly. "Why, Mr. Broadhurst, you remember
what the veterinary said. He couldn't find any signs of heroin or any
other dope they use."

"That's the devilish ingenuity of it all," shot out Kennedy suddenly,
holding up a little beaker in which there was some colorless fluid. "I
am merely going to show you now what can be done by the use of one of
the latest discoveries of physiological chemistry."

He took a syringe and, drawing back the plunger, filled it with the
liquid. With a slight jab of cocaine to make the little operation
absolutely painless, he injected the fluid into the livelier of our two
guinea-pigs.

"While you and Murchie were absent the first day that I went out to your
stable, I succeeded in drawing off some of the blood of Lady Lee," Craig
resumed, talking to Broadhurst. "Here, in my laboratory, I have studied
it. Lady Lee, that day, had had no more than the ordinary amount of
exercise, yet she was completely fagged."

By this time the little guinea-pig had become more and more listless and
was now curled up in a corner sound asleep.

"I have had to work very hurriedly this morning," Craig continued, "but
it has only been covering ground over which I have already gone. I was
already studying a peculiar toxin. And from the fluid I obtained from
Murchie's body, I have been able to calculate that a deadly dose of that
same powerful poison killed him."

Kennedy plunged directly from this startling revelation into his proof.

"Perhaps you have heard of the famous German scientist, Weichardt, of
Berlin," he resumed, "and his remarkable investigations into the toxin
of fatigue. Scientists define fatigue as the more or less complete loss
of the power of muscles to respond to stimulation due to their normal
activity. An interval of rest is usually enough to bring about their
return to some degree of power. But for complete return to normal
condition, a long interval may be necessary.

"As the result of chemical changes which occur in a muscle from
contraction, certain substances are formed which depress or inhibit the
power of contraction. Extracts made from the fatigued muscles of one
frog, for instance, when injected into the circulation of another frog
bring on an appearance of fatigue in the latter. Extracts from
unfatigued muscles give no such results. More than that, the production
of this toxin of fatigue by the exercise of one set of muscles, such as
those of the legs in walking, greatly diminishes the amount of work
obtainable from other unused muscles, such as those of the arms."

Kennedy went on, looking at the sleeping guinea-pig rather than at us:

"Weichardt has isolated from fatigued muscles a true toxin of a chemical
and physical nature, like the bacterial toxins, which, when introduced
into the blood, gives rise to the phenomena of fatigue. This is the
toxin of fatigue--kenotoxin. Those who have studied the subject have
found at least three fatigue substances--free sarcolactic acid, carbon
dioxide, and monopotassium phosphate, which is so powerful that, after
the injection of one-fifteenth of a gram, the poisoned muscle shows
signs of fatigue and is scarcely able to lift a weight easily lifted in
normal conditions. Other fatigue products may be discovered; but, if
present in large quantity or in small quantity for a long time, each of
the substances I have named will cause depression or fatigue of muscles.

"Further than that," continued Kennedy, "the depressing influence of
these substances on what is known as striated muscle--heart muscle--is
well known. The physician at the Idlewild might very well have mistaken
the cause of the relaxation of Murchie's heart. For German investigators
have also found that the toxin of fatigue, when injected into the
circulation of a fresh animal, may not only bring on fatigue but may
even cause death--as it did finally here." Kennedy paused. "Lady Lee,"
he said, looking from one to the other of his audience keenly, "Lady
Lee was the first victim of the fiendish cunning of this--"

A shrill voice interrupted.

"But Lady Lee won the race!"

It was McGee, the jockey. Kennedy looked at him a moment, then tapped
another beaker on the table before him.

"Weichardt has also obtained, by the usual methods," he replied, "an
antitoxin with the power of neutralizing the fatigue properties of the
toxin. You thought Lady Lee was not friendly with strangers that morning
at the track. She was not, when the stranger jabbed a needle into her
neck and pumped an extra large dose of the antitoxin of fatigue into her
just in time to neutralize, before the race, the long series of
injections of fatigue toxin."

Kennedy was now traveling rapidly toward the point which he had in view.
He drew from his pocket the little bottle which he had picked up that
night in the cabaret saloon.

"One word more," he said, as he held up the bottle and faced Cecilie
Safford, who was now trembling like a leaf ready to fall: "If one with
shattered nerves were unable to sleep, can you imagine what would be a
most ideal sedative--especially if to take almost any other drug would
be merely to substitute that habit for another?"

He waited a moment, then answered his own question.

"Naturally," he proceeded, "it might be, theoretically at least, a small
dose of those products of fatigue by which nature herself brings on
sleep. I am not going into the theory of the thing. The fact that you
had such a thing is all that interests me."

I watched the girl's eyes as they were riveted on Kennedy. She seemed to
be fascinated, horrified.

"This bottle contains a weak solution of the toxin of fatigue,"
persisted Kennedy.

I thought she would break down, but, by a mighty effort, she kept her
composure and said nothing.

"Someone was trying to discredit and ruin Murchie by making the horses
he trained lose races--somebody whose life and happiness Murchie himself
had already ruined.

"That person," pursued Kennedy relentlessly, "was defeated in the
attempt to discredit Murchie when, by my injection of the antitoxin,
Lady Lee finally did win. In that person's mind, Murchie, not the horse,
had won.

"The wild excitement over Murchie's vindication drove that person to
desperation. There was only one more road to revenge. It was to wait
until Murchie himself could be easily overpowered, when an overwhelming
dose of this fatigue toxin could be shot into him--the weapon that had
failed on the horses turned on himself. Besides, no one--not even the
most expert physician or chemist--would ever suspect that Murchie's
death was not natural."

"That--that bottle is mine--mine!" shouted a wild voice interrupting. "I
took it--I used it--I--"

"Just a moment, Miss Safford," entreated Kennedy. "That person," he
rapped out sharply, picking up the pedigrees O'Connor had handed him,
"that person gave the toxin to a poor dope fiend as a sleeping-potion in
one strength, gave it to Lady Lee in still another strength, and to
Murchie in its most fatal strength. It was the poor and unknown
pharmacist described in this pedigree whose dream of happiness Murchie
shattered when he captivated Cecilie Safford--her deserted lover, Ronald
Mawson."




CHAPTER XIX

THE X-RAY DETECTIVE


"I want to consult you, Professor Kennedy, about a most baffling case of
sudden death under suspicious circumstances. Blythe is my name--Dr.
Blythe."

Our visitor spoke deliberately, without the least perturbation of
manner, yet one could see that he was a physician who only as a last
resort would appeal to outside aid.

"What is the case, Doctor?" queried Craig.

The Doctor cleared his throat. "It is of a very pretty young art
student, Rhoda Fleming, who returned to New York from France shortly
after the outbreak of the war and opened a studio in the New Studio
Apartments on Park Avenue, not far from my office," began Dr. Blythe,
pausing as if to set down accurately every feature of the "case history"
of a patient.

"Yes," prompted Craig.

"About a week ago," the Doctor resumed, "I was called to attend Miss
Fleming. I think the call came from her maid, Leila, but I am not sure.
She had suddenly been taken ill about an hour after dinner. She was
cyanotic, had a rapid pulse, and nausea. By means of stimulants I
succeeded in bringing her around, however, and she recovered. It looked
like acute gastritis.

"But last night, at about the same time, I was called again to see the
same girl. She was in an even more serious condition, with all the
former symptoms magnified, unconscious, and suffering severe pains in
the abdominal region. Her temperature was 103. Apparently there had been
too great a delay, for she died in spite of everything I could do
without regaining consciousness."

Kennedy regarded the Doctor's face pointedly. "Did the necropsy show
that she was--er--"

"No," interrupted the Doctor, catching his glance. "She was not about to
become a mother. And I doubt the suicide theory, too." He paused and
then after a moment's consideration, added deliberately, "When she
recovered from the first attack she seemed to have a horror of death and
could offer no explanation of her sudden illness."

"But what other reason could there have been for her condition?"
persisted Kennedy, determined to glean all he could of the Doctor's
personal impressions.

Dr. Blythe hesitated again, as if considering a point in medical ethics,
then suddenly seemed to allow himself to grow confidential. "I'm very
much interested in art myself, Professor," he explained. "I suppose you
have heard of the famous 'Fête du Printemps,' by Watteau?"

Kennedy nodded vaguely.

"The original, you know," Dr. Blythe went on hurriedly, "hung in the
château of the Comtesse de la Fontaine in the Forest of Compiegne, and
was immensely valuable--oh--worth probably a hundred thousand dollars or
more."

A moment later Dr. Blythe leaned over with ill-suppressed excitement.
"After I brought her around the first time she confided to me that it
had been entrusted to her by the Comtesse for safe-keeping during the
war, that she had taken it first to London, but fearing it would not be
safe even there, had brought it to New York."

"H'm," mused Kennedy, "that is indeed strange. What's your theory,
then,--foul play?"

Dr. Blythe looked from Kennedy to me, then said slowly, "Yes--but we
can't find a trace of poison. Dr. Leslie--the Coroner--I believe you
know him--and I can find nothing, in fact. It is most incomprehensible."

I noticed that Kennedy was watching Dr. Blythe rather keenly and,
somehow, I fell to trying to fathom both his story and himself, without,
I confess, any result.

"I should like to look her apartment over," remarked Craig with
alacrity, needing no second invitation to take up a mystery that already
promised many surprises.

The New Studio Apartments were in a huge twelve-story ornate Renaissance
affair on upper Park Avenue, an example of the rapidly increasing
co-operative idea which the impractical artistic temperament has proved
soundly practical.

It was really a studio building, too, designed for those artists who
preferred luxury and convenience to the more romantic atmosphere of the
"Alley"--which is the way the initiated refer to the mews back of
Washington Square, known as Macdougal's Alley, famous in fact and
fiction.

Rhoda Fleming's was a most attractively arranged suite, with a large
studio commanding the north light and having a ceiling twice as high as
the ordinary room, which allowed of the other rooms being, as it were,
on two floors, since their ceilings were of ordinary height. On every
side, as we entered, we could see works of art in tasteful profusion.

Since the removal of the body of the beautiful but unfortunate young art
student, no one had been left there, except the maid, Leila. Leila was
herself a very pretty girl, one of those who need neither fine clothes
nor expensive jewels to attract attention. In fact she had neither. I
noticed that she was neatly and tastefully dressed, however, and wore a
plain gold band on the ring finger of her left hand. She seemed to be
heartbroken over the death of her mistress, but how much of it was
genuine, I could not say, though I am frank to admit that even before I
saw her I had determined that she was worth watching.

"Show me just how you discovered Miss Fleming," asked Kennedy of Dr.
Blythe, getting down to work immediately.

"Why," he replied, "when I got here she was lying half across that
divan, as if she had fallen there, fainting. Each time a little table
had been set for a light dinner and the dinner had been eaten. The
remains were on the table. And," Blythe added significantly, "each time
there was a place set for another person. That person was gone."

Kennedy had turned inquiringly to Leila.

"I was engaged only for the day," she answered modestly. "Evenings when
Mademoiselle had a little party she would often pay me extra to come
back again and clean up. She liked to prepare little chafing-dish
dinners--but disliked the cleaning."

Dr. Blythe nodded significantly, as though that accounted for the reason
why it had seemed to be Leila who had called him in both times.

Kennedy and I had found the little pantry closet in the kitchenette
where the maid kept the few housekeeping utensils. He took a hasty
inventory of the slender stock, among which, for some reason, I noted a
bottle of a well-known brand of meat sauce, one of those dark-colored
appetizers, with a heavy, burnt-grain odor.

Craig's next move was to ransack the little escritoire in the corner of
the studio room itself. That was the work of but a few moments and
resulted in his finding a packet of letters in the single drawer.

He glanced over them hastily. Several of an intimately personal nature
were signed, "Arnold Faber." Faber, I knew, was a young art collector,
very wealthy and something more than a mere dilettante. Other letters
were of business dealings with well-known Fifth Avenue art galleries of
Pierre Jacot & Cie., quite natural in view of Miss Fleming's long
residence in France.

The letters had scarcely been replaced when the door of the studio
opened and I caught sight of a tastefully gowned young woman, quite
apparently a foreigner acclimated to New York.

"Oh, I beg pardon," she apologized. "I heard voices and thought perhaps
it was some of Rhoda's relatives from the West and that I could do
something."

"Good-evening, Miss Tourville," greeted Dr. Blythe, who was evidently
well-known to this colony of artists. A moment later he introduced us,
"This, by the way, is Miss Rita Tourville, an intimate friend of Miss
Fleming, who has the studio above."

We bowed, exchanged the conventional remarks that such a tragedy made
necessary, and Rita Tourville excused herself. Somehow or other,
however, I could not resist the impression that she had come in
purposely to see what was going on.

On our way out, after promising Dr. Blythe to meet him later in the
night at the office of the Coroner, Kennedy, instead of going directly
to the street, descended to the basement of the apartment and sought the
janitor, who lived there.

"I'd like very much to see the rubbish that has come down from Miss
Fleming's apartment," he asked, slipping into the janitor's hand a large
silver coin.

"It's all mixed up with rubbish from all the apartments on that side of
the house," replied the janitor, indicating a bulging burlap bag.

"Miss Tourville's, also?" queries Craig.

The janitor nodded assent.

Kennedy surely obtained his money's worth of junk as the janitor spread
the contents of the bag on the cellar floor. With his walking stick he
pawed over it minutely, now and then stooping to examine something more
or less carefully. He had gone through somewhat more than half of the
rubbish that had come from the apartments when he came upon what looked
like the broken remains of a little one-ounce dark-colored, labelless
bottle.

Kennedy picked it up and sniffed at it. He said nothing, but I saw his
brow knit with thought. A moment later he wrapped it in a piece of
tissue paper, thanked the janitor, and we mounted the cellar steps to
the street.

"I think I'll try to see Faber tonight," he remarked as we walked down
the avenue. "It will do no harm at any rate."

Fortunately, we found the young millionaire art connoisseur at home, in
a big house which he had inherited from his father, on Madison Avenue,
in the Murray Hill section.

"The death of Miss Fleming has completely upset me," he confessed after
we had introduced ourselves without telling too much. "You see, I was
quite well acquainted with her."

Kennedy said nothing, but I could feel that he was longing to ask
questions leading up to whether Faber had been the mysterious diner in
the Fleming Studio the night before.

"I suppose you are acquainted with Watteau's 'Fête du Printemps'?" shot
out Craig, after a few inconsequential questions, watching Faber's face
furtively.

"Indeed I am," replied the young man, apparently not disconcerted in the
least.

The fact was that he seemed quite willing, even eager to discuss the
painting. I could not make it out, unless it might be that any subject
was less painful than the sudden death of Miss Fleming.

"Yes," he continued voluntarily, "I suppose you know it represents a
group of dancers. The central figure of the group, as everyone believes,
is reputed to be the passionate and jealous Madame de Montespan, whom
the beautiful Madame de Maintenon replaced in the affections of Louis
XIV.

"Why, no one thinks of Watteau, with his delightful daintiness and many
graceful figures on such masterfully disposed backgrounds as a portrait
painter. But the Fête shows, I have always contended, that he drew on
many real faces for his characters. Yes, he could paint portraits, too,
wonderfully minute and exact little miniatures."

Faber had risen as he discoursed. "I have a copy of it," he added,
leading the way into his own private gallery, while Craig and I followed
him without comment.

We gazed long and intently at the face of the central figure. Small
though it was, it was a study in itself, a puzzle, distracting,
enigmatical. There was a hard, cruel sensuousness about the beautiful
mouth which the painter seemed to have captured and fixed beneath the
very oils. Masked cleverly in the painted penetrating dark eyes was a
sort of cunning which, combined with the ravishing curves of the cheeks
and chin, transfixed the observer.

Something in the face reminded me of a face I had once seen. It was not
exactly Rita's face, but it had a certain quality that recalled it. I
fancied that there was in both the living and the painted face a
jealousy that would brook no rivalry, that would dare all for the object
of its love.

Faber saw that we had caught the spirit of the portrait, and seemed
highly gratified.

"What crimes a man might commit under the spell of a woman like that!"
exclaimed Craig, noticing his gratification. "By the way, do you know
that Miss Fleming was said to have had the original--and that it is
gone?"

Faber looked from one to the other of us without moving a muscle of his
face.

"Why, yes," he replied steadily. I could not make out whether he had
expected and been prepared for the question or not. At any rate he
added, half serious, half smiling, "Even for her portrait someone was
ready to risk even life and honor to kidnap her!"

Evidently in his ardor he personified the picture, felt that the thief
must have been moved by what the psychologists call "an imperative idea"
for the mere possession of such a treasure.

"Still," Craig remarked dryly, "the wanderings of the lost Duchess by
Gainsborough for a quarter of a century stuffed into a tin tube, to say
nothing of the final sordid ending of the capture of Mona Lisa, might
argue a devotion among art thieves a bit short of infatuation. I think
we'll find this lady, too, to be held for ransom, not for love."

Faber said nothing. He was evidently waiting for Kennedy to proceed.

"I may photograph your copy of the Fête?" queried Craig finally, "so as
to use it in identifying the real one?"

"Surely," replied the collector. "I have no objection. If I should
happen to be out when you came, I'll leave word with my man to let you
go ahead."

Just then the telephone rang and Faber reached for it before we could
thank him and say good-night.

"Hello--oh, Miss Tourville, how do you do? Why--er--yes--yes, I'm
listening."

They chatted for several minutes, Faber answering mostly in
monosyllables. Perhaps it was my imagination, but I thought the
conversation, at least at his end of the line, constrained. As he hung
up the receiver, I fancied, too, that Faber seemed to look on us with a
sort of suspicion. What was his connection with Rita, I wondered? What
had Rita told him?

A moment later we had said good-by and had gained the street, Kennedy
still making no comment on the case.

"There's nothing more that we can do tonight," remarked Craig, looking
at his watch finally as we walked along. "Let us go over to the City
Laboratory and see Dr. Leslie, as I promised Blythe."




CHAPTER XX

THE MECHANICAL CONNOISSEUR


Dr. Leslie, the Coroner, was an old friend of ours with whom we had
co-operated in several cases. When we reached his office we found Dr.
Blythe there already, waiting for us.

"Have you found anything yet?" asked Dr. Blythe with what I felt was
just a trace of professional pique at the fact that neither physician
had been able to shed any light on the case so far.

"I can't say--yet," responded Craig, not noticing Blythe's manner, as
from the piece of tissue paper in which he had wrapped them he produced
the broken bits of bottle.

Carefully he washed off the jagged pieces, as though perhaps some of the
liquid the bottle had contained might have adhered to the glass.

"I suppose you have animals here for experiment?" he asked of Leslie.

The Coroner nodded.

"Chickens?" asked Craig with a broad smile at the double meaning.

"A Leghorn rooster," returned Dr. Leslie with a laugh.

"Good--bring him on," replied Craig briskly.

Quickly Kennedy shot a small quantity of the liquid he had obtained by
washing the bits of glass into the veins of the white Leghorn. Then he
released the rooster, flapping about.

In a corner chanticleer stood, preening his feathers and restoring his
ruffled dignity, while we compared opinions.

"Look!" exclaimed Kennedy a few minutes later, when we had almost
forgotten the rooster.

His bright red comb was now whitish. As we watched, a moment later it
turned dark blue. Otherwise, however, he seemed unaffected.

"What is it?" I asked in amazement, turning to Craig.

"Ergot, I think," he replied tersely. "At least that is one test for its
presence."

"Ergot!" repeated Dr. Leslie, reaching for a book on a shelf above him.
Turning the pages hurriedly, he read, "There has been no experience in
the separation of the constituents of ergot from the organs of the body.
An attempt might be made by the Dragendorff process, but success is
doubtful."

"Dragendorff found it so, at any rate," put in Dr. Blythe positively.

Running his fingers over the backs of the other books, Dr. Leslie
selected another. "It is practically impossible," he read, "to separate
ergot from the tissues so as to identify it."

"Absolutely," asserted Dr. Blythe quickly.

I looked from one physician to the other. Was this the "safe" poison at
last?

Kennedy said nothing and I fell to wondering why, too, Dr. Blythe was so
positive. Was it merely to vindicate his professional pride at the
failure he and the Coroner had had so far with the case?

"I suppose you have no objection to my taking some of this sample of the
contents of the organs of her body, have you?" asked Craig at length of
Dr. Leslie.

"None in the world," replied the Coroner.

Kennedy poured out some of the liquid into a bottle, corked it
carefully, and we stood for a few moments longer chatting over the
developments, or rather lack of developments of the case.

It was late when we returned to our apartment, but the following morning
Kennedy was up long before I was. I knew enough of him, however, to know
that I would find him at his laboratory breakfastless, and my deduction
was correct.

It was not until the forenoon that Craig had completed the work he had
set himself to do as he puzzled over something in the interminable
litter of tubes and jars, bottles and beakers, reagents, solutions, and
precipitates.

"I'm going to drop in at Jacot's," he announced finally, laying off his
threadbare and acid-stained coat and pulling on the clothes more fitted
for civilization.

Having no objection, but quite the contrary, I hastened to accompany
him. Jacot's was a well-known shop. It opened on Fifth Avenue, just a
few feet below the sidewalk, and Jacot himself was a slim Frenchman,
well preserved, faultlessly dressed.

"I am the agent of Mr. Morehouse, the Western mine-owner and
connoisseur," introduced Kennedy, as we entered the shop. "May I look
around?"

"Certainement,--avec plaisir, M'sieur," welcomed the suave dealer, with
both hands interlocked. "In what is Mr. Morehouse most interested? In
pictures? In furniture? In--"

"In almost anything that is rare and beautiful," confided Craig, looking
Jacot squarely in the eye and adding, "and not particular about the
price if he wants a thing, either. But I--I am particular--about one
thing."

Jacot looked up inquiringly.

"A rebate," Kennedy went on insinuatingly, "a commission on
the bill--you understand? The price is immaterial, but not
my--er--commission. Comprenez-vous?"

"Parfaitement," smiled the little Frenchman. "I can arrange all that.
Trust me."

We spent an hour, perhaps, wandering up and down the long aisles of the
store, admiring, half purchasing, absorbing facts about this, that and
the other thing that might captivate the fictitious Mr. Morehouse.

Not satisfied with what was displayed so temptingly in the front of the
store, Kennedy wandered back of a partition apparently in search of some
more choice treasures, before Jacot could stop him. He turned over a
painting that had been placed with its face toward the wall, as if for
protection. I recognized the subject with a start. It was Watteau's
Fête!

"Wonderful!" exclaimed Kennedy in well-feigned ecstasy, just as Jacot
came up.

"Ah, but, M'sieur," interposed the art dealer, "that is only a copy--and
not for sale."

"I believe my friend, Mr. Faber, has a copy," ventured Craig.

"By a Miss Fleming?" asked Jacot quickly, apparently all interest now.

Kennedy shrugged his shoulders. Was Jacot hinting at something known in
the trade?

"Might I photograph some of the things here to show Mr. Morehouse?"
asked Craig a moment later. "I see several things in which I think he
might be interested."

"Surely," answered Jacot, then, after consideration, in which his beady
eye seemed to size up Kennedy, he added, sotto voce, craftily, "Would
Mr. Morehouse be--er--interested in Watteau's Fête?"

My heart almost stopped beating. Were we really on the right track at
last?

Jacot leaned over confidentially to Kennedy and added, "Why not sell as
an original, not this, but another copy--a--a--what you call it?--a
fake?"

I understood. Kennedy, having invited crooked dealing by his remark
about the rake-off, was being approached about another crooked deal.

"A fake Watteau?" he asked, appearing to meet Jacot halfway.

Jacot nodded. "Why not? You know the same Botticelli belongs to
collectors in Philadelphia and Boston; that is, each has a picture and
if one is genuine the other must be a fake. Possibly the artist painted
the same picture twice. Why, M'sieur, there are Rubens, Hals, Van Dycks,
Rembrandts galore in this country that hang also at the same time
abroad." Jacot smiled. "Did you never hear of a picture with a dual
personality?"

Kennedy seemed to consider the idea. "I'll think it over," he remarked
finally, as we prepared to leave, "and let you know when I come back to
snap some of the things for my principal."

"Well--of all brazen crooks!" I sputtered when we had gained Fifth
Avenue.

Kennedy shook his head. "We can't be sure of anything in this game. Does
it occur to you that he might perhaps think he was playing us for
suckers, after all?"

My mind worked rapidly. "And that that picture of Faber's is the real
original, after all?" I asked. "You mean that somehow a copy by Miss
Fleming has come really to Jacot with instructions to palm it off on
some gullible buyer?"

"Frankly, Walter," he said, as we walked along, "I don't know what to
think. You know even the greatest experts sometimes disagree over
questions like this. Well, Walter, art is long and time is fleeting. If
we are ever to settle where that real Watteau is, we shall have to
resort to science, I think."

That afternoon after a trip up to the laboratory, where Craig secured a
peculiar and cumbersome photographic outfit, we at last found ourselves
around at Faber's private gallery. Faber was out, but, true to his
promise, he had left word with his man, who admitted us.

Kennedy set to work immediately, before the painting, placing an
instrument which certainly was not like a regular camera. I was further
astonished, moreover, when Craig set up something back of the canvas,
which he moved away from the wall. As nearly as I could make it out it
consisted of a glass bulb of curious shape. A moment later he attached
the bulb to a wire that connected with a little rheostat or resistance
coil and thence, in turn, to an electric-light socket.

He switched on the electric current and the apparatus behind the picture
began to sputter. I could not see very well what it was, but it looked
as if the bulb was suffused with a peculiar, yellowish-green light,
divided into two hemispheres of different shades. The pungent odor of
ozone from the electric discharge filled the room.

While Kennedy was working, I had noticed a little leather party box
lying on a table, as though it had been forgotten. It was not just the
thing one would expect in Faber's rooms and I looked at it more closely.
On it were the initials "R. T." Had Rita Tourville visited him?

Craig had scarcely finished and was packing up his apparatus when we
heard a noise outside. A second later, Faber himself entered, with Rita,
evidently looking for something.

"Oh, yes, Rita,--here it is. Why, Kennedy--how are you? Did you get your
photograph?"

Kennedy replied that he had, and thanked him.

It was easy to see Rita's pleasure at being with the young connoisseur,
but at the sight of Craig I fancied for a moment that I saw a flash of
that passionate resentment which had caused me to find a resemblance
between the expression of her face and that of De Montespan in the
painting, a hint at what she would do or dare to protect the object of
her affections.

We departed shortly, leaving Rita and Faber deep in the discussion of
some art topic.

It was not until late in the afternoon that we were able to revisit
Jacot's. He received us cordially, but Craig, by a whispered word or
two, was able to postpone the answer to the clever proposal which might
have been a trap prepared for us.

Craig, with a regular camera which he had brought also, set to work
snapping pictures and objects of art with reckless profusion, moving
them about to get a better light and otherwise consuming time.

At last came the opportunity he had been awaiting, when Jacot had a
customer in the front of the store. Quickly he set up the peculiar
apparatus which he had used at Faber's before the copy of the Watteau in
the rear of the shop, switched on the electricity, and amid the
suppressed sputtering duplicated the work I had seen him do before.

As he was packing the apparatus up, I happened to glance toward the
front of the store. There were Leila and Jacot in earnest conversation.
I whispered to Kennedy, and, a moment later, she caught sight of me,
appeared not to recognize me, and left.

Jacot sauntered back to us, I thought, concealing his haste.

Before he could speak, Kennedy asked, "Who was that woman?"

He had finished packing up the apparatus and even if Jacot had heard
something that caused him to change his mind, it was now too late to
stop Kennedy.

"Why," hastened Jacot, apparently frank, "that is the maid of the Miss
Fleming, the artist who has just died. She has come to me to see whether
I can get her a position with another artist."

"I thought I recognized her," remarked Kennedy. "I remember when I saw
her once before that she had on a wedding ring. Doesn't her husband
support her?"

Jacot shrugged his shoulders. "She is looking for another position--that
is all I know," he said simply.

Kennedy picked up his apparatus.

"You will think over my proposition?" asked Jacot, as we left.

"And let you know in a day or two," nodded Kennedy.

As we walked up Fifth Avenue, I confess to have felt all at sea. Who had
the real masterpiece? Was it Faber, or Jacot, or was it someone else? If
Rita had warned Faber against us, and Leila had warned Jacot, which had
copy and which original? Or were they both copies and had the original
been hidden? Had it been stolen for money or had some fiend with a
knowledge of this mysterious ergot stolen it simply for love of art,
stopping not even at murder to get it?




CHAPTER XXI

THE RADIOGRAPH WITNESS


It was apparent that quick action was necessary if the mystery was ever
to be solved. Kennedy evidently thought so, too, for he did not wait
even until he returned to his laboratory to set in motion, through our
old friend, Commissioner O'Connor, the machinery that would result in
warrants to compel the attendance at the laboratory of all those
interested in the case. Then he called up Dr. Leslie and finally Dr.
Blythe himself.

Back again in the laboratory, Kennedy employed the time in developing
some plates of the pictures he had taken, and by early evening, after a
brief study of them, his manner indicated that he was ready.

Dr. Leslie, whom he had asked to come a little before the rest, arrived
early, and a few moments later Dr. Blythe, very much excited by the
message he had received.

"Have you found anything?" he asked eagerly. "I've been trying all sorts
of tests myself, and I can't prove the presence of a thing--not a
thing."

"Not ergot?" asked Kennedy quietly.

"No," he cried, "you can't prove anything--you can't prove that she was
poisoned by ergot."

Dr. Leslie looked helplessly at Kennedy, but said nothing.

"Not until recently, perhaps, could I have proved anything," returned
Kennedy calmly. "Evidently you didn't know, Dr. Blythe, that the first
successful isolation of an alkaloid of ergot from the organs in a case
of acute ergotism had been made by two Pittsburgh scientists. True, up
to the present toxicologists had to rely on the physical properties of
this fungus of rye for its identification. That may have made it seem
like a safe poison to someone. But I have succeeded in isolating
ergotinin from the sample of the contents of the organs of the poor
girl."

Without pausing, he picked up a beaker. "Here I have the residue left
from an acid solution of an extract of the organs, treated with
chloroform. It is, as you see, crystalline."

In his other hand he held up another beaker. "Next I got the residue
obtained by extraction of the acid aqueous liquid with ether. That, too,
is crystalline."

Kennedy displayed something in the shape of long needles, the sides of
which were not quite parallel and the ends replaced by a pair of faces.

Quickly he dissolved some of the crystals in sulphuric acid. Then he
added another chemical from a bottle labeled ferro chlorid. The liquid,
as we bent over it, changed quickly to a brilliant orange, then a
crimson, next a green, and finally became a deep blue.

"What he has derived from the body responds to all the chemical tests
for ergotinin itself," remarked Dr. Leslie, looking quickly across at
Dr. Blythe.

Dr. Blythe said nothing.

I smelt of the stuff. Odors with me, as, I suppose, with other people,
have a psychological effect, calling up scenes associated with them.
This odor recalled something. I strove to recollect what it was. At
last it came with a rush.

"The meat sauce!" I exclaimed involuntarily.

"Exactly," replied Kennedy. "I have obtained that bottle. There was
ergot in it, cleverly concealed by the natural smell and taste of the
sauce. But who put it there? Who had the knowledge that would suggest
using such a poison? Who had the motive? Who had been dining with her
that fatal evening?"

Kennedy had no chance to answer his questions, even if he had intended
to do so.

The door of the laboratory opened and Rita Tourville, in charge of one
of O'Connor's men, who looked as if he might have enjoyed it better if
the lady had not been so angry, entered. Evidently O'Connor had timed
the arrival closely to what Craig had asked, for scarcely a moment later
Faber came whirling up in one of his own cars. Not a word passed between
him and Rita, yet I felt sure that they had some understanding of each
other. Leila arrived shortly, and it was noticeable that Rita avoided
her, though for what reason I could not guess. Finally came Jacot,
blustering, but, having made the officer the safety-valve of his
mercurial feelings, quickly subsiding before us. Dr. Blythe appeared
amazed at the quickness with which Kennedy moved now.

"In ordinary times," began Kennedy, noting as he spoke the outward
attitude of our guests toward each other, "the world would have stood
aghast at the disappearance of such a masterpiece as the Fête by
Watteau. It would have ranked with the theft of Gainesborough's Duchess
of Devonshire, Da Vinci's Mona Lisa, the brown-skinned Madonna of the
Mexican convent, Millet's Goose-girl, and the Shepherd and Flock, the
portrait of Saskia by Rembrandt, and other stolen masterpieces.

"But today the vicissitudes of works of art in war time pass almost
unnoticed. Still there is a fascination exercised over the human mind by
works of art and other objects of historic interest, the more so because
the taking of art treasures seems to have become epidemic in northern
Europe."

He laid down what looked more like two rough sketches than photographs,
yet they were photographs, though the relative brightness of color in
photographs was quite different. Outlines were displaced, also. Ugly
spots and bands marred the general effect. They were peculiar.

"They are X-ray images or radiographs of two oil paintings, both claimed
to be copies of Watteau's famous Fête," explained Kennedy, picking up
one of them.

"In a radiograph of the body," he continued, "the difference of
brightness that distinguishes the heart from the lungs, bones from
flesh, is due to the different densities of tissues. In these pictures
the same effect is produced by the different densities of the pigments,
especially of their principal and heaviest elements."

He paused and laid down a chart. "For anyone who doubts what I am about
to prove, I have made a scale of oil colors arranged in accordance to
their transparency to Roentgen rays by applying standard pigments to
canvas in patches of equal thickness.

"I think you can see what I am driving at. For instance, a design drawn
in a heavy pigment will show through a layer of a less dense pigment,
under the influence of the X-ray--just as bones show through flesh. In
other words, an ordinary photograph reproduces only the surface of a
painting. A radiograph represents all the pigments underneath, also
producing effects in proportion to their densities.

"Let me show you the practical result of all this in studying such
radiographs, as worked out by a German student. I have made several very
interesting and conclusive discoveries which these radiographs I have
taken illustrate."

He paused a moment, for the sake of emphasis. "You will notice," he
resumed carefully, "the lace frill above the bodice on the figure of
Madame de Montespan, in this radiograph. In the painting the frill is
sharply defined and can be clearly distinguished from the bodice. But
look at this radiograph. It appears tattered. It overflows the bodice.

"That led me to suspect that the bodice was widened as an
afterthought--perhaps to diminish the area of white. That is the reason
why the white shows through the bodice in the radiograph. But in this
other one the bodice and the frill are substantially as they must be in
the original."

Again he paused, as if taking up a new point. "This radiograph,--number
one, I may call it--shows a broad light band on the right hand of the
figure, of which not a trace is to be found either in the other
radiograph or the painting itself. It represents the first rough sketch
of an arm and hand.

"Again, in this first radiograph the ring and little fingers are close
together and a sixth finger appears between the index and middle
fingers. From that I infer that the hand hung limp with the fingers
nearly in contact in the first sketch and that the fingers were
afterward separated. But in this second radiograph the arm, hand and
fingers are perfect."

It was fascinating to listen to Kennedy as he delved down into the
invisible beneath the very oils and dug out their hidden mystery.

"Take the head and shoulder," he continued. "Radiograph number one
clearly shows flaking of the painting which has been painted over to
conceal it. Ordinary light reveals no trace, either, of a long crack on
the shoulder which evidently was filled with a thick mass of pigment
containing too little white lead to obliterate the crack in the
radiograph. White spots above the ear, in the radiograph, probably
indicate an excess of white lead used in retouching. At any rate,
radiograph number two contains no such defects."

Kennedy paused before drawing the conclusion. "The radiograph of an
original picture reveals changes made by the artist in the course of his
work. The counterfeiter, like other copyists, reproduces as accurately
as possible the final result. That is all he can see. He makes errors
and corrections, but of a different kind. There are no serious changes.

"So, a radiograph of even a part of a picture shows the layers of
pigment that are hidden from the eye and the changes made during the
composition of the work. One can easily distinguish the genuine from the
spurious copies, for it is absolutely impossible for an imitator to make
a copy that will stand the X-ray test.

"You see," he went on enthusiastically, "the most striking feature of
these radiographs is their revelation of details of the first sketch,
which have been altered in the finished picture. We actually obtain an
insight into the methods of an artist--" he paused, adding--"who has
been dead for centuries."

It was wonderful what Kennedy was getting out of those, to us, blurred
and indistinct skiagraphs. I studied the faces before me. None seemed to
indicate any disposition to break down. Kennedy saw it, too, and
evidently determined to go to the bitter end in hammering out the truth
of the mystery.

"One moment more, please," he resumed. "The radiograph shows even more
than that. It shows the possibility of detecting a signature that has
been painted over, in order to disarm suspicion. The detection is easier
in proportion to the density of the pigment used for the signature and
the lack of density of the superposed coat."

He had laid the radiographs on the table before him, with a finger on
the corner of each, as he faced us.

"At the bottom of each of the paintings in question," he shot out,
leaning forward, "you will find nothing in the way of a signature. But
here, in radiograph number two, for instance, barely discernible, are
the words, "R. Fleming," quite invisible to the eye, but visible to the
X-ray. These words have been painted over. Why? Was it to prevent anyone
from thinking that the owner had ever had any connection with Rhoda
Fleming?"

I was following Kennedy, but not so closely that I missed a fearful
glance of Rita from Faber to Jacot. What it meant, I did not know. The
others were too intent on Kennedy's exposure to notice. I wondered
whether someone had sought to conceal the fact that he had a copy of the
famous Watteau, made by Miss Fleming?

"Look at the bottom of the other radiograph, number one, further toward
the left," pursued Kennedy resistlessly. "There you will discover traces
of an 'A' and a 'W,' which do not appear on the painting. Between these
two are marks which can also be deciphered by the X-ray--'Antoine
Watteau.' Perhaps it was painted over lightly so that an original could
be smuggled in as a copy. More likely it was done so that a thief and
murderer could not be traced."

As Kennedy's voice rang out, more and more accusatory, Rita Tourville
became more and more uncontrollably nervous.

"It was suggested," modulated Kennedy, playing with his little audience
as a cat might with a mouse, "that someone murdered Rhoda Fleming with
the little-understood poison, ergot, because of an infatuation for the
picture itself. But the modern crook has an eye for pictures, just as
for other valuables. The spread of the taste for art has taught these
fellows that such things as old masters are worth money, and they will
even murder now to get them. No, that radiograph which I have labeled
number one is not a copy. It is of the genuine old master--the real
Watteau.

"Someone, closely associated with Miss Fleming, had found out that she
had the original. That person, in order to get it, went even so far as
to--"

Rita Tourville jumped up, wildly, facing Craig and crying out, "No,
no--his _is_ the copy--the copy by Miss Fleming. It was I who told him
to paint over the signature. It was I who called him away--both
nights--on a pretext--when he was dining with her--alone--called him
because--I--I loved him and I knew--"

Faber was on his feet beside her in a moment, his face plainly showing
his feelings toward her. As he laid his hand on her arm to restrain her,
she turned and caught a penetrating glance from Jacot's hypnotic eye.

Slowly she collapsed into her chair, covering her face with her hands,
sobbing. For a moment a look of intense scorn and hatred blazed in
Leila's face, then was checked.

Craig waved the radiograph of the real Watteau as he emphasized his last
words.

"In spite of Rita Tourville's unexpected love for Faber, winning him
from your victim, and with the aid of your wife, Leila, in the rôle of
maid, the third member of your unique gang of art thieves, you are
convicted infallibly by my X-ray detective," thundered Craig as he
pointed his finger at the now cowering Jacot.




CHAPTER XXII

THE ABSOLUTE ZERO


"Isn't there some way you can save him, Professor Kennedy? You _must_
come out to Briar Lake."

When a handsome woman like Mrs. Fraser Ferris pleads, she is
irresistible. Not only that, but the story which she had not trusted
either to a message or a messenger was deeply interesting, for, already,
it had set agog the fashionable country house colony.

Mrs. Ferris had come to us not as the social leader now, but as a
mother. Only the night before her son, young Fraser, had been arrested
by the local authorities at Briar Lake on the charge of homicide. I had
read the meager dispatch in the morning papers and had wondered what the
whole story might be.

"You see, Professor Kennedy," she began in an agitated voice as soon as
she arrived at the laboratory and introduced herself to us, "day before
yesterday, Fraser was boxing at the Country Club with another young man,
Irving Evans."

Kennedy nodded. Both of them were well known. Ferris had been the
All-America tackle on the University football team a couple of years
previous and Evans was a crack pitcher several years before.

"Irving," she continued, adding, "of course I call him Irving, for his
mother and I were schoolgirls together--Irving, I believe, fell
unconscious during the bout. I'm telling you just what Fraser told me.

"The other men in the Club gymnasium at the time carried him into the
locker-room and there they all did what they could to revive him. They
succeeded finally, but when he regained consciousness he complained of a
burning sensation in his stomach, or, rather, as Fraser says, just below
the point where his ribs come together. They say, too, that there was a
red spot on his skin, about the size of a half-dollar.

"Finally," she continued with a sigh, "the other men took Irving
home--but he lapsed into a half-comatose condition. He never got better.
He--he died the next day--yesterday."

It was evidently a great effort for Mrs. Ferris to talk of the affair
which had involved her son, but she had made up her mind to face the
necessity and was going through it bravely.

"Of course," she resumed a moment later, "the death of Irving Evans
caused a great deal of talking. It was natural in a community like Briar
Lake. But I don't think anything would have been thought about it, out
of the way, if the afternoon after his death--yesterday--the body of one
of the Club's stewards, Benson, had not been found jammed into a trunk.
Apparently, it had been dumped off an automobile in one of the most
lonely sections of the country.

"In fact," she went on, "it was the sort of thing that might have taken
place, one would say, in the dark alleys of a big city. But in a country
resort like Briar Lake, the very uncommonness of such a case called
added attention to it."

"I understand," agreed Craig, "but why did they suspect your son?"

"That's the ridiculous part of it, at least to me," hastened the mother
to her son's defense. "Both Irving and my son, as you know, were former
University athletic stars, and, as in all country clubs, I suppose, that
meant popularity. Irving was engaged to Anita Allison. Anita is one of
the most beautiful and popular girls in the younger set, a splendid
golfer, charming and clever, the life of the Club at the dances and
teas."

Mrs. Ferris paused as though she would convey to us just the social
status of everyone concerned.

"Of course," she threw in parenthetically, "you know the Allisons are
reputed to be quite well off. When old Mr. Allison died, Anita's
brother, Dean, several years older than herself, inherited the brokerage
business of his father and, according to the will, assumed the
guardianship of his younger sister."

She seemed to be considering something, then suddenly to make up her
mind to tell it. "I suppose everyone knows it," she resumed, "and you
ought to know it, too. Fraser was--er--one of Anita's unsuccessful
suitors. In fact, Anita had been sought by nearly all of the most
eligible young fellows of the Club. I don't think there were many who
had not at some time or other offered her his whole heart as well as his
fortune.

"I didn't encourage Fraser--or try to discourage him. But I could see
that it lay between Fraser and Irving."

"And the rather strange circumstances of the death of Evans, as well as
of the steward, occasioned a good deal of gossip, I suppose," chimed in
Kennedy.

"Yes. Somehow, people began to whisper that it was revenge or hate or
jealousy that had prompted the blow,--that perhaps the steward, Benson,
who was very popular with the young men, knew or had seen something that
made him dangerous.

"Anyhow, gossip grew until it seemed that, in some way which no one has
ever said definitely, a deliberate attempt was made on Irving Evans's
life, and finally the local authorities, rather glad to take up a
scandal in the Club set, took action and arrested my Fraser--under a
charge of homicide."

She blurted the words out fiercely and defiantly, but it was all
assumed. Underneath, one could see the woman fighting loyally with every
weapon for her son, keenly alive to the disgrace that even the breath of
scandal unrefuted might bring to his name.

"How about the other admirers?" asked Craig quickly.

"That's another queer thing," she replied eagerly. "You see, they have
all suddenly become very busy and have made perfect alibis. But there
was Allan Wyndham--he's a friend of the Allisons,--why shouldn't they
suspect him? In fact, there was quite a group of young fellows closely
associated with Dean Allison in speculation. Irving Evans was one. But,"
she added, with a glance at Kennedy as if she realized that it was like
catching at a straw, "with Fraser, of course,--there is that blow. We
can't deny that."

"What does Miss Allison think?" queried Craig.

"Oh, I believe Anita is all broken up by the tragedy to her fiancé. She
was at the Club at the time--in the tea room. No one dared to tell her
until Irving had been taken home. Then her brother, who was in the
gymnasium when the thing happened and had been one of those to carry
Irving into the locker-room, was naturally chosen by the rest, after
they had done all they could to revive Irving, to break the news as
gently as he could to his sister. She took it calmly. But I think it
would have been better if she had given way to her real feelings. They
say she has secluded herself in the Allison house and won't see a soul."

Kennedy's brow puckered in thought.

"You can't imagine what a terrible shock this thing has been to me,"
pleaded Mrs. Ferris. "Oh, the horror of it all! You _must_ come out to
Briar Lake with me!"

There was, naturally, no doubt of the poignancy of her feelings as she
looked from Kennedy to myself, imploringly. As for Craig, he did not
need to betray the sympathy he felt not only for the young man who had
been arrested and his mother, but for the poor girl whose life might be
blasted by the tragedy and the unhappy victim who had been snatched away
so suddenly almost on the very eve of happiness.

It was not half an hour later, that, with a very grateful mother, we
were on our way out to Briar Lake in Mrs. Ferris's touring car.

As we whirled along past the city limits, Kennedy leaned back on the
cushions and for some minutes seemed absorbed in thought.

"Of course it is possible," he remarked at length, noticing that both
Mrs. Ferris and I were watching him nervously, "that Miss Allison may
know something that will throw some light on the affair. But it may be
of an entirely private nature. I don't know how we'll get her to talk,
but we must--if she knows anything. I'd like to stop at the Allison
house, first."

"Very well," agreed Mrs. Ferris, leaning forward and directing the
chauffeur to turn off before we reached Briar Lake on the main road.

We sped along and I could not help feeling that the young man who was
driving the car was quite as eager as anyone else to bring help to his
young master.

The Allison house proved to be a roomy, old-fashioned place on a rise of
ground just this side of Briar Lake, for the Allisons had been among the
first to acquire estates at the exclusive colony.

Mrs. Ferris remained in the car, while Kennedy and I went in to
introduce ourselves.

We found the young society girl evidently now in full possession of her
nerves. She was slender, fair, with deep blue eyes, not merely pretty,
but with a face that showed character.

Anita Allison had been seated in the library, and, as we entered, I
could see that she had hastily shoved some papers, at which she had been
looking, into a drawer of the desk.

"Miss Allison," began Kennedy, "this is a most unfortunate affair and I
must beg your pardon--"

"Yes," she interrupted, "I understand. As if I didn't feel badly
enough--oh--they have to make it all so much harder to bear by arresting
Fraser--and then all this notoriety,--it is awful."

I confess that I had not expected that we would see her so easily. Yet I
felt that there was some constraint in her manner, in spite of that.

"I want to speak frankly with you, Miss Allison," went on Craig gently.
"Is there anything about the matter--of a personal nature--that you
haven't told? I want to appeal to you. Remember, there is another life
at stake, now."

She looked at us searchingly. Did she suspect that we knew something or
was she herself seeking information?

"No, no," she cried. "There isn't a thing--not a thing that I know that
I haven't told--nothing."

Kennedy said nothing himself, but watched her, apparently assuming that
she would go on.

"Oh," she cried, "if I could only _do_ something--anything. It might get
my mind off it all. But I--I can't even cry!"

Plainly there was little except a sort of mental vivisection of her
grief to be gained from her yet--even if she suspected something, of
which I was not entirely sure.

We excused ourselves and left her, sunk deeply into a leather chair, her
face buried in her hands, but not weeping.

"Is Mr. Allison at home?" inquired Craig as we passed out through the
hall, meeting the butler at the door.

"No, sir," he replied. "He went to New York this morning, sir, and said
he'd be at the Club later this afternoon."

We climbed into the car and Kennedy looked at his watch. "It's getting
well along in the afternoon," he remarked. "I think I'll go over to the
Club. We may find Allison there now."

As we turned out into the main road our driver had to swerve for a car
which turned off, coming from the city, as we had come a few minutes
before. He looked around at it blackly, as it went up the road to the
Allison house, for he had had to stall his own engine to avoid a
collision. There was no one in the other car but a driver with a visored
hat.

"Whose car was that?" asked Craig quickly.

"Allan Wyndham's," answered our driver, starting his engine.

"H'm," mused Craig. "Wyndham must have sent her a message from town. Too
bad we hurried so to get up here."

At last, as we turned a bend in the main road, the broad chimneys, white
columns and wide balustrades of the Briar Lake Country Club loomed in
sight.

The Country Club was a most pretentious building, yet, unlike many such
clubs, had a very hospitable air in spite of its aristocratic and
handsome appearance.

There was something very inviting about its wide sweep of roof and ample
piazzas, some enclosed in glass, as we approached by the broad graveled
driveway that swung in from the highway between the gentle curves of
green lawns whose expanse was broken by the tall pines through which we
caught a glimpse of the hills. It was indeed a beautiful country.

We entered a wide hall and came to the reception room crowded with
luxurious armchairs and cozy corners. In a glass case stood the usual
trophies.

Grouped about a huge deep fire was a knot of people, and here and there
others were talking earnestly. One could feel that this was one of those
social institutions not to be in which argued that one was decidedly
out of things. I could almost visualize the close scrutiny that new
applicants would undergo, not so much as men among men, but through the
eyes of the women folk, dissecting the wives and daughters of the
family.

Founded originally because of the interest of the older members in
horses and the hunt, the Club had now extended its activities to polo
and motors, golf, tennis, squash, with a fine old English bowling green
and ample shooting traps.

I could not blame Mrs. Ferris for not wishing to enter the Club just
yet. She had left us at the door, promising to send the car back for our
disposal.




CHAPTER XXIII

THE VACUUM BOTTLE


Fortunately, Dean Allison was at the Club, as we hoped, having just
arrived by the train that left New York at the close of the banking day.
Someone told us, however, that Wyndham had probably decided to remain in
town over night.

Allison was perhaps a little older than I had imagined, rather a grave
young man who seemed to take his club responsibilities on the Council
very seriously.

"I'd like to talk to you about this Evans case," began Craig when we had
been introduced.

"Glad to tell you all I know," he responded cordially. "It isn't much,
I'm afraid. It's terrible--terrible. We don't know what to think. My
sister is all broken up by it, poor girl."

He led the way over to a corner, in a sort of bow window, and we sat
down on the hard leather cushions.

"No, there isn't much I can say," he resumed. "You see, one of the
recreations of the younger set at the Club is boxing--that's about all
there was to it--not the amateurish thing one usually sees, but real
scientific boxing.

"Fraser had adopted the so-called Fitzsimmons shift--you know, the right
foot forward, while the left hand shoots out from somewhere near the
hip, plunging at close range into the pit of the stomach."

Allison rose to illustrate it. "Irving, on the other hand, had been
advocating the Jeffries crouch as the only safeguard to meet it,--like
that."

He threw himself into position and went on, "The bout had been arranged,
accordingly, and it was _some_ bout, too. Most of us here are fond of
boxing to keep fit.

"Well, at last Fraser got under his guard, I suppose you'd call it. He
landed. For an instant, Irving stood up straight, his hands helplessly
extended. Most of us thought he was fooling and Fraser jumped back,
laughing at the way his contention had worked out. Then, slowly,
struggling as if against the inevitable, Irving bent forward and toppled
over on his face.

"That's where we woke up. We rushed forward and picked him up,
apparently unconscious, and carried him to the locker-room. There was a
good deal of excitement. Someone telephoned for a doctor, but couldn't
seem to find one at home."

"Did you see anything peculiar take place in the locker-room?" asked
Kennedy, following keenly.

"Anything peculiar?"

"Yes--anyone near him, perhaps--another blow--while he was unconscious."

"No--and I think I would have seen anything that was out of the way. I
was there almost all the time--until someone told me my sister was
upstairs and suggested that I was the best one to break the news to
her."

"I'd like to look over the gymnasium and locker-room," suggested Craig.

Dean Allison led the way downstairs quickly. Craig did not spend more
than a minute in the gymnasium, but the locker-room he examined
carefully.

It was a long room. Each locker bore the name of its owner and he
hastily ran his eye over them, getting their location.

I don't know that even he had, yet, any idea that he would find
anything, but it was just his habit to go over the ground of a tragedy,
in hope of picking up some clew.

He looked over the floor very carefully, now and then bending down as if
to discover spots. Once he paused a moment, then continued his measured
tread down the long row of lockers until he came to a door at the other
end of the room. We went out and Kennedy looked about closely.

"Oh,--about Benson, the steward," he said, looking up quickly and
stroking his chin as if an idea had occurred to him. "Is there anyone
here who might know something about him--his habits, associates,--that
sort of thing?"

"Why--yes," considered Allison slowly, "the chef might know. Wait, I'll
call him."

As Allison disappeared in the direction of what was evidently the
kitchen, we stood outside by the door, waiting.

Kennedy's eye traveled back and forth about us and finally fell on a row
of rubbish barrels a few feet away. He moved over to them.

He had half turned away, retracing his steps back to me thoughtfully,
when his eye must have been attracted by something gleaming. He turned
back and poked at it with his stick. Peeping from the rubbish was a
dented thermos bottle, the lining of which was cracked and broken.

He was about to turn away again when his eye fell on something else. It
was the top of the bottle, the little metal cap that screws over it, or
rather it was what was left of the cap.

"That's strange," he muttered to himself, picking it up.

The cap, which might have been used as a cup, was broken in the most
peculiar manner, in spite of the fact that it was metal. If it had been
of glass I should have said that someone had dropped it.

Kennedy frowned and dropped the pieces into his pocket, turning to wait
for Allison to return with the chef.

"I can't seem to find him," reported Allison a moment later. "But he'll
be here soon. He'll have to be--or lose his job. How would after dinner
do? I'll have him and all the other employés, then."

"Good!" agreed Kennedy. "That will give me time to go into the town
first and get back."

"I'd be glad to have you dine with me," invited Allison.

"Thank you," smiled Kennedy. "I'm afraid I won't have time for dining
tonight. I'll be back after dinner, though."

Mrs. Ferris's car had returned and Craig's next step was to go on into
the town of Briar Lake.

On the way he decided first to stop at the Evans house, which took us
only a little bit out of our way. There he made a minute examination of
the body of the young man.

Irving Evans had been a handsome fellow and the tragedy of his death
had been a sad blow to his family. However, I shall not dwell on that,
as it is no part of my story.

Kennedy was eager to see the red spot in the pit of the stomach of the
dead man of which everyone had spoken.

He looked at it closely, as I did also, although I could make nothing of
it. Evans had complained of a burning, stinging sensation, during his
moments of consciousness and the mark had had a flushed, angry look. It
seemed as though a sort of crust had formed over it, which now was ashen
white.

Craig did not spend as long as I had anticipated at the Evans house,
but, although he said nothing, I could tell by the expression of his
face that he was satisfied with the conclusions which he drew from the
examination. Yet I could not see that the combination of circumstances
looked much better for Fraser Ferris.

We went on now to the town and there we had no trouble in meeting the
authorities and getting them to talk. In fact, they seemed quite eager
to justify themselves.

As we passed down the main street, Mrs. Ferris's chauffeur mentioned the
fact that a local physician, Dr. Welch, was also the Coroner of the
county. Kennedy asked him to stop at the doctor's office, and we
entered.

"A most unfortunate occurrence," prefaced the doctor as we seated
ourselves.

"You assume, then, that it was the blow that killed Evans?" asked
Kennedy pointedly.

The doctor looked at him a moment. "Of course--why not?" he demanded
argumentatively, as though we had come all the way from the city for the
sole purpose of impugning his medical integrity. "I suppose you know the
classical case of the young man who was coming out of the theater, when
some of the party began indulging in rather boisterous horse play? One
bent another quietly over his arm and tapped him a sharp blow with the
disengaged hand on the stretched abdomen. The blow fell right over the
solar plexus and, to the surprise of everyone, the young man died."

The Coroner had risen and was pacing the room slowly. "I could cite
innumerable cases. Everyone understands that a blow may be fatal because
of shock to the solar plexus. In such a case no post-mortem trace might
be found and the blow could even be a light one.

"For instance, in a fight a blow might be struck and the recipient fall
dead. If the medical examiner should find nothing on holding the autopsy
which would have caused sudden death, he can testify that a shock to the
solar plexus will cause death and that the post-mortem examination will
give no evidence to support or disprove the statement. The absolute
absence, however, of any reason or of injury to the other organs will
add weight to his testimony, evidence of the blow being present."

"And you think this was such a case?" asked Kennedy, with just a trace
of a challenge in his tone.

"Certainly," replied the Coroner. "Certainly. We know that a blow was
struck--in all probability hard enough to affect the solar plexus."

It was evident, in his mind at least, that young Ferris was guilty and
Kennedy rose to go, refraining from antagonizing him by further
questions.

We next visited the county court house, which was not far from the
doctor's office. There, the sheriff, a young man, met us and seemed
willing to talk over the evidence which so far had been unearthed in the
case.

In his office was a trunk, a cheap brown affair, in which the body of
the unfortunate steward, Benson, had been found.

"Quite likely the trunk had been carried to the spot in a car and thrown
off," the sheriff explained. "A couple of boys happened to find it. They
told of their find and one of the constables opened the trunk, then
called us up here. In the trunk was the body of a man, crouched, the
head forced back between the knees."

"I'd like to see Benson's body," remarked Kennedy.

"Very well, I'll go with you," returned the sheriff. "It's at the
undertaker's--our only local morgue."

As we walked slowly up the street, the sheriff went on, just to show
that country as well as city detectives knew a thing or two. "There are
just two things in which this differs from the ordinary barrel or trunk
murder you read about."

"What are they?" encouraged Craig.

"Well, we know the victim. There wasn't any difficulty about identifying
him. We know it wasn't really a Black Hand crime, although everything
seems to have been done to make it look like one, and the body was left
in the most lonely part of the country.

"And then the trunk. We have traced it easily to the Club House. It was
Benson's own trunk--had been up in his own room, which was locked."

"His own trunk?" repeated Craig, suddenly becoming interested. "How
could anyone take it out, without being seen? Didn't anyone hear
anything?"

"No. Apparently not. None of the other servants seem to have heard a
thing. I don't know how it could have been got out, especially as his
door was locked and we found the keys on him. But--well, it was. That's
all."

We had reached the undertaker's.

The body of Benson was horribly mangled about the head and chest,
particularly the mouth. It seemed as if a great hole had been torn in
him, and he must have died instantly. Kennedy examined the grewsome
remains most carefully.

What had done it, I wondered? Could the man have been drugged, perhaps,
and then shot?

"Maybe it was a dum-dum bullet," I suggested, "one of those that
mushrooms out and produces such frightful wounds."

"But assuming it entered the front, there is no exit in the back," the
sheriff put in quickly, "and no bullet has been found."

"Well, if he wasn't shot," I persisted, "it must have been a blow, and
it seems impossible that a blow could have produced such an effect."

The sheriff said nothing, evidently preferring to gain with silence a
reputation for superior wisdom. Kennedy had nothing better than silence
to offer, either, though he continued for a long time examining the
wounds on the body.

Our last visit in town was to Fraser Ferris himself, to whom the sheriff
agreed to conduct us. Ferris was confined in the grim, dark, stone,
vine-clad county jail.

We had scarcely entered the forbidding door of the place when we heard a
step behind us. We turned to see Mrs. Ferris again. She seemed very much
excited, and together we four, with a keeper, mounted the steps.

As she caught sight of her son, behind the bars, she seemed to gasp,
then nerve herself up to face the ordeal of seeing a Ferris in such a
place.

"Fraser," she cried, running forward.

He was tall, sunburned, and looked like a good sportsman, a clean-cut
fellow. It was hard to think of him as a murderer, especially after the
affecting meeting of the mother and son.

"Do you know what I've just heard?" she asked at length, then scarcely
pausing for a word of encouragement from him, she went on. "Why, they
say that Benson was in town early that evening, drinking heavily and
that that might account--"

"There--there you are," he cried earnestly. "I don't know what happened.
But why should I do anything to him? Perhaps someone waylaid him. That's
plausible."

"Of course," warned Kennedy a few minutes later, "you know that anything
you say may be used against you. But--"

"I _will_ talk," interrupted the young man passionately, "although my
lawyer tells me not to. Why, it's all so silly. As for Irving Evans, I
can't see how I could have hit him hard enough, while, as for poor
Benson,--well, that's even sillier yet. How should I know anything of
that? Besides, they were all at the Club late that night, all except me,
talking over the--the accident. Why don't they suspect Wyndham? He was
there. Why don't they suspect--some of the others?"

Mrs. Ferris was trying to keep a brave face and her son was more eager
to encourage her than to do anything else.

"Keep up a good heart, Mother," he called, as we finally left, after his
thanking Kennedy most heartily. "They haven't indicted me yet, and the
grand jury won't meet for a couple of weeks. Lots of things may turn up
before then."

It was evident that, next to the disgrace of the arrest, his mother
feared even more the shame of an indictment and trial, even though it
might end in an acquittal. Yet so far we had found no one, as far as I
knew, who had been able to give us a fact that contradicted the
deductions of the authorities in the case.




CHAPTER XXIV

THE SOLAR PLEXUS


It was after the dinner hour that we found ourselves at the Country Club
again. Wyndham had not come back from the city, but Allison was there
and had gathered together all the Club help so that Kennedy might
question them.

He did question them down in the locker-room, I thought perhaps for the
moral effect. The chef, whom I had suspected of knowing something, was
there, but proved to be unenlightening. In fact, no one seemed to have
anything to contribute. Quite the contrary. They could not even suggest
a way in which the trunk might have been taken from the steward's room.

"That's not very difficult," smiled Kennedy, as one after another the
servants asserted that it would be impossible to get it around the turns
in the stairs without making a noise. "Where was Benson's room?"

The chef led the way to the door, that by which we had gone out before
when we had seen the rubbish barrels.

"Up there," he pointed, "on the third floor."

There was no fire escape, nor were there any outside balconies, and I
wondered how Craig would account for it.

"Someone might have lowered the trunk from the window by a rope, might
they not?" he asked simply.

"Yes," returned the chef, unconvinced. "But his door was locked and he
had his keys in his pocket. How about that?"

"It doesn't follow that he was killed in his room, does it?" asked
Craig. "In fact it is altogether impossible that he could have been.
Suppose he was killed outside. Might not someone have taken the keys
from his pocket, gone up to the room without making any noise and let
the trunk down here by a rope? Then if he had dropped the rope, locked
the door, and returned the keys to Benson's pockets--how about that?"

It was so simple and feasible that no one could deny it. Yet I could not
see that it furthered us in solving the greater mystery.

We went up to the steward's room and searched his belongings, without
finding anything that merited even that expenditure of time.

However, Craig was confident now, although he did not say much, and by a
late train we returned to the city in preference to using Mrs. Ferris's
car.

All the next day, Kennedy was engaged, either in his laboratory or on an
errand that took him downtown during most of the middle of the day.

When he returned, I could tell by the look on his face that his quest,
whatever it had been, had been successful.

"I found Wyndham--had a long talk with him," was all he would say in
answer to my questions, before he went back to whatever he was studying
at the laboratory.

I had made some inquiries myself in the meantime, especially about
Wyndham. As nearly as I could make out, the young men at Briar Lake
were afflicted with a disease which is very prevalent--the desire to get
rich quick. In that respect Fraser Ferris was no better than the rest.
Nor was Irving Evans. Allan Wyndham had been a plunger almost from
boyhood, and only the tight rein that his conservative father held over
him had checked him. Sometimes the young men succeeded, and that had
served only to whet their appetites for more easy money. But more often
they had failed. In most cases, it seemed, Dean Allison's firm had been
the brokers through whom they dealt, particularly Wyndham.

In fact, with more time on my hands during the day than I knew what to
do with, in the absence of Kennedy I had evolved several very pretty
little theories of the case which involved the recouping of dissipated
fortunes by marriage with the popular young heiress.

It was late in the afternoon that the telephone rang, and, as Craig was
busy, I answered it.

"Oh, Mr. Jameson," I heard Mrs. Ferris's voice calling over long
distance from Briar Lake anxiously, "is Mr. Kennedy there? Please let me
speak to him."

I hastened to hand over the receiver to Kennedy and waited impatiently
until he finished.

"A special grand jury has been empanelled for ten o'clock tomorrow
morning," he said as he turned from the wire and faced me, "and unless
we can do something immediately, they are sure to find an indictment."

Kennedy scowled and shook his head. "It looks to me as if someone were
mighty anxious to railroad young Ferris along," he remarked, hurrying
across to the laboratory table, where he had been at work, and flinging
off his stained smock.

"Well, are you ready for them?" I asked.

"Yes," he replied quickly. "Call up and find out about the trains to
Briar Lake, Walter."

I found that we could easily get a train that would have us at the
Country Club not later than eight o'clock, and as I turned to tell
Kennedy, I saw him carefully packing into a case a peculiar shaped flask
which he had been using in some of his experiments. Outside it had a
felt jacket, and as we hurried over to the station Kennedy carried it
carefully in the case by a handle.

The ride out to Briar Lake seemed interminable, but it was better than
going up in a car at night, and Mrs. Ferris met us anxiously at the
station.

Thus, early in the evening, in the little reception room of the Country
Club, there gathered a large party, not the largest it had seen, but
certainly the most interested. In fact no one, except young Ferris, had
any legitimate reason for staying away.

"Dead men tell no tales," remarked Kennedy sententiously, as he faced
us, having whispered to me that he wanted me to take a position near the
door and stay there, no matter what happened. "But," he added, "science
opens their mute mouths. Science has become the greatest detective in
the world.

"Once upon a time, it is true, many a murderer was acquitted and perhaps
many an innocent man hanged because of appearances. But today the
assassin has to reckon with the chemist, the physicist, the X-ray
expert, and a host of others. They start on his track and force him to
face damning, dispassionate scientific facts.

"And," he went on, raising his voice a trifle, "science, with equal
zeal, brings facts to clear an innocent man protesting his innocence,
but condemned by circumstantial evidence."

For a moment he paused, and when he began again it was evident that he
was going straight to the point at issue in the case.

"Various theories have been confidently proposed in this unfortunate
affair which resulted in the death of Irving Evans," he proceeded. "One
thing I want clear at the start. The fact is, and I am not running
counter to it, that we have what might very well be called two brains.
One is in the head, does the thinking. The other is a sort of abdominal
brain, controls nutrition and a host of other functions, automatically.
It is the solar plexus--the epigastric, sympathetic nervous system.

"It is true that the knot of life is situated at the base of the cranial
brain. One jab of a needle and it might be quickly extinguished. Yet
derangement of the so-called abdominal brain destroys life as
effectually, though perhaps not so quickly. A shock to the abdominal
brain of young Evans has been administered--in a most remarkable
manner."

I could see Mrs. Ferris watching him with staring eyes, for Kennedy was
doing just what many a lawyer does--stating first the bad side of one's
case, and seeming to establish the contention of the opposite side.

"It was an unfortunate blow," he admitted, "perhaps even dangerous. But
it was not deadly. What happened downstairs in the gymnasium must be
taken into account with what happened afterwards in the locker and both
considered in the light of the death of the steward, Benson, later.

"The mark on the stomach of Irving Evans was due to something else than
the blow. Everyone has noticed that. It was a peculiar mark and no mere
blow could have produced it.

"Weird in conception, horribly cunning in its execution was this attempt
at murder," he added, taking from the case the peculiar flask which I
had seen him pack up.

He held it up so that we could see. It was evidently composed of two
flasks, one inside the other, the outer encased in felt, as I had seen,
the inner coated with quicksilver and a space between the two. Inside
was a peculiar liquid which had a bluish tinge, but was odorless. From
the surface a thin vapor seemed to rise.

It was not corked, but from the neck he pulled out a light cotton
stopper. As he agitated the liquid slightly, it had the appearance of
boiling. He turned over the bottle and spilled some of it on the floor.
It evaporated instantly, like water on a hot stove.

Then he took from his pocket a small tin cup and poured out into it some
of the liquid, letting it stand a few moments, smoking.

He poured back the liquid into the flask and dropped the cup on the
hardwood floor. It shattered as if it had been composed of glass.

One of the men in the front row moved forward to pick up the pieces.

"Just a minute," interfered Kennedy. "If you think anything of your
fingers, let that be. In the rubbish, just outside the locker-room,
yesterday, I discovered the remains of a thermos bottle and of a metal
cup like this which I have dropped on the floor. I have examined the
cup, or rather the pieces.

"These two murders were committed by one of the least known
agencies--freezing, by liquid air."

I could hear a gasp from the auditors and I knew that someone's heart
must be icy at the discovery of the portentous secret.

"I have some liquid air in this Dewar flask," continued Kennedy. "That
is what liquid air is usually kept in. But it may be kept in an ordinary
thermos bottle quite well, also.

"If I should drop just a minute bit on my hand, it would probably boil
away without hurting me, for it evaporates so quickly that it forms a
layer or film of air which prevents contact of the terribly cold liquid
air and the skin. I might thrust my finger in it for a few seconds and
it would not hurt me. But if I kept it there my finger would become
brittle and actually break off, so terrible is the cold of one hundred
and ninety degrees below zero, Centigrade. It produces an instantaneous
frost bite, numbing so quickly that it often is hardly felt. Placed on
the surface of flesh this way, it changes it to a pearly-white, solid
surface. The thawing, however, is intensely painful, giving first a
burning sensation, then a stinging, flushed feeling, exactly as Irving
Evans described what he felt. The part affected swells and a crust forms
which it takes weeks to heal, supposing the part affected is small.

"Someone, in that locker-room," continued Craig, "placed a piece of
cotton soaked in liquid air on the stomach of the unconscious boy.
Instantly, before anyone noticed it, it froze through to the solar
plexus. Ultimately that was bound to kill him. And who would bear the
blame? Why, Fraser Ferris, of course. The accident in the bout afforded
an opportunity to use the stuff which the criminal in his wildest dreams
could not have bettered."

"How about Benson, the steward?" spoke up a voice.

We turned. It was the Coroner, loath even yet to give up the official
theory.

"That was a pure accident," returned Kennedy. "The club, as you know, is
a temperance club. But the members, or at least some of them, keep
drinks in their lockers. The steward, Benson, knew this. It has been
shown that Benson had been in town that evening, had imbibed
considerably.

"He had observed one of the members of the club take from his locker
something which he thought was to revive young Evans. What more natural,
then, than for him to visit that locker when he returned from town, open
it?

"He found a thermos bottle. Instead of the regular cork, it had a light
cotton stopper. In his muddled state, the steward did not stop to
think--even if he had, he would have seen no reason for carefully
corking something that was not designed to keep in a thermos bottle.

"But instead of whiskey, the bottle contained what had not yet
evaporated of the liquid air. You may not know it, but liquid air can be
easily preserved in open vessels with a stopper which allows the
passage of the evaporated air. However paradoxical it may seem, it
cannot be kept in closed vessels, for enormous pressures are at once
brought into play.

"Benson opened the bottle and poured out some of the contents in the
metal cup-cap of the bottle. He raised it to his lips--swallowed it--or
that much of it that did not paralyze him. It expanded, boiled,
exploded--producing the ghastly wound by almost literally blowing him
up.

"The owner of the liquid air, who must have had it there waiting a
chance to use it, was probably waiting up in the club rooms now, for a
chance to get rid of it as evidence. He must have heard a noise down in
the locker-room. What if he had been observed and someone were down
there investigating?

"He hurried down there. To his horror, in the darkness, he found Benson,
already dead, the locker open, the thermos bottle broken and the cup
smashed.

"It was a terrible clew. He must get that body away from the
locker-room. He could throw the bottle out; no one could suspect
anything when the air had evaporated, as it soon would, now. But the
body--that was different. The method he employed in getting rid of the
body, I think you all must already know."

I had been watching Wyndham's face keenly. As Craig proceeded, I fancied
that I saw in it a look of startled surprise.

"_Was_ it one of Anita Allison's many admirers who did this thing?"
Craig asked suddenly.

I turned from Wyndham to Craig, wondering. What did he mean? Everyone
had accepted that theory of the case so far. No one had questioned it.
But, with his words, it suddenly dawned on me that it was by no means
the only theory.

Before Craig could go on, there came a startled cry from one of the
ladies.

"Oh--he did it--he did it!"

Anita Allison had fainted.

Dean Allison was at his sister's side in a moment.

"Here--let me get her out into the fresh air," he cried.

Wyndham had started up at the words and the two men were facing each
other over the girl who had already discovered the secret, but had kept
it locked in her breast.

"Walter--lock that door," rang out Craig's voice mercilessly.

I backed up, my whole weight against it, and turned the key.

"I know the gossip of Wall Street now," shot out Kennedy hurriedly,
facing the crowd who were all on their feet. "Today I have visited a
number of speculative young gentlemen of Briar Lake, including Mr.
Wyndham.

"The truth is that Miss Allison's fortune was gone--dissipated in an
unsuccessful bear raid on the market in which others have shared--and
lost.

"If she had married, it meant an accounting and surrendering of her full
control of her fortune. You have done this dastardly crime, Dean
Allison, to keep your sister in ignorance of the loss and to save your
own miserable reputation!"




CHAPTER XXV

THE DEMON ENGINE


"Perpetual motion sounds foolish, I'll admit. But, Professor Kennedy,
this Creighton self-acting motor does things I can't explain."

Craig looked perplexed as he gazed from Adele Laidlaw, his young and
very pretty client, to me. We had heard a great deal about the young
lady, one of the wealthiest heiresses of the country. She paused a
moment and looked at us, evidently thinking of the many schemes which
people had devised to get her money away from her.

"Really," she went on, "I haven't a friend to whom I can go, except Mr.
Tresham--no one on whom I can rely for advice in a case of this kind."

Several times, I recollected, there had been rumors that she was engaged
to Leslie Tresham, who had been the lawyer for her father before his
death. The rumors had always been denied, however, though I am sure it
was not Tresham's fault.

"You see," she continued, as Craig still said nothing, "father was of a
mechanical turn of mind; in fact so was the whole family, and I suppose
I have inherited it. I'm just crazy over cars and boats. Anyhow, I was
introduced to Mr. Creighton and he seemed so earnest and his work was so
interesting that I bought a little of his stock. Now he needs more
money to perfect his motor. Perhaps the thing is all right, but,--well,
what do I really know about it?"

One could not help feeling a great deal of sympathy for her. She was not
the type of woman who would be easily misled, yet I could imagine that
she must constantly be on her guard against schemers of every sort
lurking to take advantage of every whim.

"H'm," mused Kennedy, with a smile, eyeing our visitor keenly. "I've
been consulted on about everything from pickpockets to the fountain of
youth. Now it's perpetual motion. I must say, Miss Laidlaw, your case
has a decided scientific interest for me, anyhow, as well as personal.
I'd like to look at this wonderful machine, if you can arrange it."

"I can do that," she answered confidently with a glance of thanks to
Kennedy for his help. "May I use your telephone?"

She had to wait some time for an answer to her call, but finally she got
Creighton on the wire.

"He had just come in," she said, hanging up the receiver. "He'll be
there if we come down right away."

Adele Laidlaw drove us downtown in her own high-powered car, which, true
to her mechanical instincts, she handled herself. She drove it very
well, too. In fact, I felt safer than with Kennedy, who, like many
drivers, was inclined to take chances when he was at the wheel himself
and could see what he was up against, though he balked severely when
anyone else did it.

"How did you become interested in this perpetual motion machine, Miss
Laidlaw?" he asked as we threaded our way through the dense traffic.

"Well, I suppose everyone knows that I'm interested in engines," she
replied, as we waited for the signal from a policeman at a cross-street.
"I've spent a good deal on them in speed-boats and in racing cars, too.
An acquaintance, a friend of Mr. Creighton's, a Mrs. Barry,--Mr. Tresham
knows her,--thought perhaps I might use the motor somehow and told me of
it. I went down to see it and--I must confess that it fascinated me."

I had not yet quite got myself accustomed to a girl who was interested
in such things, though, in these days, I must confess, saw no reason why
she should not be. Kennedy was dividing his attention between the
admirable manner in which she handled the car and her very expressive
face. Was it really, I wondered, that Creighton, more than his motor,
has fascinated her?

She drew up before the Consolidated Bank Building, a modern steel and
concrete structure in the uptown business section.

"The laboratory is next door," she said, as she let the car slide ahead
a few feet more. "Mr. Tresham's office is in the Bank Building. I've had
to go there so often since father died that I stopped through force of
habit, I suppose."

Mindful of Kennedy's admiration for Freud, his theory of forgetting
occurred to me. Was there any significance in the mistake? Had the
unconscious blunder betrayed something which perhaps she herself
consciously did not realize? Was it Tresham, after all, whom she really
admired and wanted to see?

Creighton's workshop was in an old two-story brick building, evidently
awaiting only the development of the neighborhood before it was torn
down. Meanwhile the two buildings were in marked contrast. Which of them
typified Creighton? Was he hopelessly out of date, or really ahead of
his time? I must confess to having had a lively curiosity to meet the
inventor.

The entrance to the laboratory from the street was through a large door
into a room in which was a carpenter's bench. On one side were some
powerful winches and a large assortment of tools. In the back of the
room a big door led to another room on the ground floor to the rear.

"Mr. Creighton's is upstairs," remarked Miss Laidlaw, turning past the
locked door and going up a worn flight of steps.

"Whose shop is that?" asked Kennedy, indicating the door.

"I don't know who rents these rooms down here," she replied.

Up the stairway we went to the second floor. On the top landing stood
some old machinery. In a little room on one side was a big desk, as well
as books, instruments, and drawings of all sorts. Opposite this room was
another little room, with many bits of expensive machinery on shelves
and tables. Back of these two, and up a step, was a large room, the full
width of the building, the workshop of the inventor, into which she led
us.

"I've brought a couple of friends of mine who may be interested in the
vibrodyne motor," Miss Laidlaw introduced us.

"Very pleased to meet you, gentlemen," Creighton returned. "Before we
get through, I think you'll agree with me that you never dreamed of
anything more wonderful than this motor of mine."

He was a large, powerfully built man, with a huge head, square jaw with
heavy side whiskers, and eyes that moved restlessly under a shock of
iron-gray hair. Whether it was the actual size of his head or his bushy
hair, one got the impression that his cranium housed a superabundant
supply of brains.

Every action was nervous and quick. Even his speech was rapid, as though
his ideas outstripped his tongue. He impressed one as absorbed in this
thing which he said frankly had been his life study, every nerve
strained to make it succeed and convince people.

"Just what is this force you call vibrodyne?" asked Craig, gazing about
at the curious litter of paraphernalia in the shop.

"Of course, I'm willing to admit," began Creighton quickly, in the tone
of a man who was used to showing his machine to skeptical strangers but
must be allowed to explain it in his own way, "that never before by any
mechanical, electrical, thermal, or other means has a self-moving motor
been made."

He paused apparently to let us grasp the significance of what he was
about to say. "But, is it impossible, as some of the old scientists have
proved to their own satisfaction it must be?" he went on, warming up to
his subject. "May there not be molecular, atomic, even ionic forces of
which we have not dreamed? You have only to go back a few years and
study radioactivity, for instance, to see how ideas may change.

"Today," he added emphatically, "the conservation of energy, in the old
sense at least, has been overthrown. Gentlemen, all the old laws must
be modified by my discovery of vibrodyne. I loose new new forces--I
create energy!"

I watched him narrowly as he proposed and rapidly answered his own
questions. He was talking quite as much for Miss Laidlaw's benefit, I
thought, as ours. In fact, it was evident that her interest in the
machine and in himself pleased him greatly.

I knew already that though the search after perpetual motion through
centuries had brought failure, still it captivated a certain type of
inventive mind. I knew also that, just as the exact squaring of the
circle and the transmutation of metals brought out some great
mathematical discoveries and much of modern chemistry, so perpetual
motion had brought out the greatest of all generalizations of
physics--the conservation of energy.

Yet here was a man who questioned the infallibility of that
generalization. Actually taking the ultra-modern view that matter is a
form of energy, he was asserting that energy in some way might be
created or destroyed, at least transformed in a manner that no one had
ever understood before. To him, radioactivity which had overthrown or
amplified many of the old ideas was only a beginning.

"Here is the machine," he pointed out at last, still talking, leading us
proudly across the littered floor of his laboratory.

It seemed, at first glance, to consist of a circular iron frame, about a
foot and a half in diameter, firmly bolted to the floor.

"I have it fastened down because, as you will see, it develops such a
tremendous power," explained the inventor, adding, as he pointed above
it, "That is all the power is developed from, too."

On a shelf was a Daniell battery of four cells. In the porous cup was
bichromate of potash and in the outer vessel dilute sulphuric acid.

"Let me show you how I get two and a half horsepower out of three ounces
of zinc for nine hours," went on Creighton proudly. "As you doubtless
know, the usual thing is one horsepower per pound of zinc per hour.
Ultimately, I expect to perfect the process until I get a thousand
horsepower from an ounce in this vibrodyne motor."

He started the engine by attaching the wires from the comparatively weak
Daniell cells. Slowly it began to move, gaining speed, until finally the
very floor shook from the great power and the rapidity of the motion.

It seemed incredible that the small current from the battery should
develop such apparent power and I looked at Kennedy in amazement.

"There's a carelessly--or purposely--ill-balanced flywheel, I suspect,"
whispered Craig to me surreptitiously.

"Yes, but the power," I persisted.

He shook his head. Evidently he was not convinced, but had no theory,
yet.

Adele Laidlaw looked at Craig questioningly, as though to read what he
thought of it. Before her he betrayed nothing. Now and then she would
look earnestly at Creighton. It was evident that she admired him very
much, yet there seemed to be something about him that she did not quite
understand.

Just then the telephone rang. Creighton stopped his machine and left us
for a moment to answer the call, while the engine slowed down and came
to rest.

Quickly Kennedy pulled out his watch and pried the crystal off the face.
He walked over to a basin and filled the crystal with a few drops of
water. Then he set it down on the table.

I looked at it closely. As nearly as I could make out, there seemed to
be a slight agitation on the surface of the thin film of water in the
glass. Craig smiled quietly to himself and flicked the water into the
sink, returning the crystal to his watch.

I did not understand just what it was that Craig was after, but I felt
sure that there was some kind of vibration that he had discovered.

Meanwhile, we could hear Creighton telephoning and I noticed that Miss
Laidlaw was alertly listening, too.

"Why, no," I heard him answer monosyllabically but in a tone that was
carefully modulated, "not alone. Let me call you up--soon."

The conversation ended almost as abruptly as it had begun. Somehow, it
seemed evident to me that Creighton had been talking to a woman. Though
he apparently had not wanted to say anything before us, he could not
disguise the fact. From his quick, nervous manner with us, I had
concluded that no mere man could have commanded so deferential a tone
from him.

A moment later he rejoined us, resuming his praises of his motor. By
this time I had come to recognize that he was a master in the
manipulation of fantastic terms, which I, at least, did not understand.
Therein, perhaps, lay their potency, though I doubt whether Kennedy
himself knew what Creighton meant when he talked of "polar sympathy,"
"inter-atomic ether," "molecular disintegration," and "orbitic chaos."

I saw that Adele Laidlaw was watching Creighton narrowly now. Was it on
account of the telephone call? Who had it been? Perhaps, it occurred to
me, it was Mrs. Barry. Was Creighton afraid of arousing the jealousy of
Adele Laidlaw?

There seemed to be nothing more of importance that Craig could learn at
present and we soon bade Creighton good-by, leaving with Miss Laidlaw. I
noticed that he locked the door after us as we went out.

"I'd like to meet this Mrs. Barry," remarked Craig as we passed out of
the building.

He said it evidently to see just how Miss Laidlaw would take it. "I
think I can arrange that," replied Adele Laidlaw colorlessly. "I'll ask
her to visit me this afternoon. You can call casually."

We accompanied her to her car, promising to report as soon as possible
if we discovered anything new.

"I'm going in to call on Tresham," remarked Craig, turning into the Bank
Building.




CHAPTER XXVI

THE ELECTROLYSIS CLEW


As Kennedy walked through the corridor of the building, he paused and
bent down, as though examining the wall. I looked, too. There was a
crack in the concrete, in the side wall toward the Creighton laboratory.

"Do you suppose vibration caused it?" I asked, remembering his watch
crystal test.

Craig shook his head. "The vibrations in a building can be shown by a
watch glass full of water. You saw the surface of the liquid with its
minute waves. There's vibration, all right, but that is not the cause of
such cracks as these."

He stood for a moment regarding the crack attentively. On the floor on
which we were was the Consolidated Bank itself. Beneath us were the
Consolidated Safety Deposit vaults.

"What did cause them, then?" I asked, mystified.

"Apparently escaping currents of electricity are causing electrolysis of
the Bank Building," he replied, his face wrinkled in thought.

"Electrolysis?" I repeated mechanically.

"Yes. I suppose you know how stray or vagrant currents affect steel and
concrete?"

I shook my head in the negative.

"Well," he explained as we stood there, "I believe that in one
government test at least it was shown that when an electric current of
high voltage passes from steel to concrete, the latter is cracked and
broken. Often a mechanical pressure as great as four or five thousand
pounds a square inch is exerted and there is rapid destruction due to
the heating effect of the current."

I expressed my surprise at what he had discovered. "The danger is easily
overestimated," he hastened to add. "But in this case I think it is
real, though probably it is a special and extreme condition. Still it is
special and extreme conditions which we are in the habit of encountering
in our cases, Walter. That is what we must be looking out for. In this
instance the destruction due to electrolysis is most likely caused by
the oxidation of the iron anode. The oxides which are formed are twice
as great in volume as the iron was originally and the resulting pressure
is what causes the concrete to break. I think we shall find that this
condition will bear strict watching."

For a moment Kennedy stopped at the little office of the superintendent
of the building, in the rear.

"I was just wondering whether you had noticed those cracks in the walls
down the corridor," remarked Kennedy after a brief introduction.

The superintendent looked at him suspiciously. Evidently he feared we
had some ulterior motive, perhaps represented some rival building and
might try to scare away his tenants.

"Oh, that's nothing," he said confidently. "Just the building settling a
bit--easily fixed."

"The safety vault company haven't complained?" persisted Kennedy,
determined to get something out of the agent.

"No indeed," he returned confidently. "I guess they've got troubles of
their own--real ones."

"How's that?" asked Craig, falling in with the man's evident desire to
change the subject.

"Why, I believe their alarm system's out of order," he replied. "Some of
the fine wires in it burnt out, I think. Defective wiring, I guess. Oh,
they've had it patched up, changed about a little,--it's all right now,
they say. But they've had a deuce of a time with the alarm ringing at
all sorts of hours, and not a trace of trouble."

I looked quickly at Craig. Though the superintendent thought he had been
very clever in changing the topic of conversation, he had unwittingly
furnished us with another clew. I could not ask Craig before him and I
forgot to do so later, but, to me at least, it seemed as if this might
be due to induction from the stray currents.

"No one here seems to have suspected the Creighton motor, anyhow,"
commented Craig to me, as we thanked the superintendent and walked
across to the elevators.

We rode up to Tresham's office, which was on the third floor, on the
side of the building toward Creighton's laboratory. In fact one of the
windows opened almost on the roof of the brick building next door.

We found Tresham in his office and he received us affably, I thought.
"Miss Laidlaw told me she was going to consult you," he remarked as we
introduced ourselves. "I'm glad she did so."

Tresham was a large, well-built fellow, apparently athletically
inclined, clean shaven with dark hair that was getting very thin. He
seemed quite at ease as he talked with us, yet I could tell that he was
weighing us all the time, as lawyers will do.

"What do you think of Creighton's motor?" opened Kennedy. "You've seen
it, I suppose?"

"Oh, yes," he replied quickly and jerkily. "Since Miss Laidlaw became
interested he's been in here to have me look over his application for a
patent. You know, I used to be a patent lawyer for a number of years
until I decided to branch out into general practice. Legally Creighton
seems to be sound enough. Of course, you know, the patent office won't
grant a patent on a machine such as he claims without a rigid
demonstration. He needs money, he says, for that. If his idea is sound,
I don't see any reason why he shouldn't get a basic patent."

Tresham paused. I was conscious that he was furtively watching the face
of Kennedy as though he hoped to learn as much from him as Craig did on
his part.

"It's the mechanical end of it that I don't understand," continued
Tresham, after a pause. "Creighton claims to have discovered a new force
which he calls vibrodyne. I think it is just as well that Miss Laidlaw
has decided to consult a scientist about it before she puts any more
money into the thing. I can't say I approve of her interest in
it--though, of course, I know next to nothing about it, except from the
legal standpoint."

"Who is that Mrs. Barry of whom Miss Laidlaw spoke?" asked Kennedy a
moment later.

"I believe she is a friend of Creighton's. Somehow she got acquainted
with Miss Laidlaw and introduced her to him."

"You know her?" queried Craig casually.

"Oh, yes," came the frank reply. "She has been in to see me, too; first
to interest me in the motor, and then to consult me about various legal
points in connection with it."

I felt sure that Tresham was more than just a bit jealous of his pretty
client. Certainly his tone was intended to convey the impression that he
wished she would leave her affairs in his hands entirely.

"You don't know anything more about her--where she came from--her
connections?" added Craig.

"Hardly more than you do," asserted Tresham. "I've only seen the woman a
few times. In fact I should be glad to know more about her--and about
Creighton, too. I hope that if you find out anything you'll let me know
so that I can protect Miss Laidlaw's interests."

"I shall do so," promised Kennedy, rising.

"I'll do the same," agreed Tresham, extending his hand. "I see no reason
why we shouldn't work together for--my client."

There was no mistaking the fact that Tresham would have liked to be able
to say something more intimate than "client." Perhaps he might have been
nearer to it if her interest in him had not been diverted by this
wonderful motor. At any rate I fancied he had little love for Creighton.
Yet, when I reflected afterward, it seemed like a wide gulf that must
separate a comparatively impecunious lawyer from a wealthy girl like
Adele Laidlaw.

Kennedy was not through with his effort to learn something by a thorough
investigation of the neighborhood yet. For some time after we left
Tresham's office, he stood in the doorway of the Bank Building, looking
about as though he hated to leave without establishing some vantage
point from which to watch what was going on in Creighton's laboratory.

"Of course I can't very well get into the safety vault under the bank,"
he mused. "I wish I could."

He walked past Creighton's without seeing anything happen. The next
building was a similar two-story brick affair. A sign on it read,
"Studios and Offices For Rent."

An idea seemed to be suggested to him by the sign. He wheeled and
entered the place. Inquiry brought out a caretaker who showed us several
rooms unoccupied, among them one vacant on the first floor.

Kennedy looked it over carefully, as though considering whether it was
just the place he wanted, but ended, as I knew he intended, in hiring
it.

"I can't move my stuff in for a couple of days," he told the caretaker.
"Meanwhile, I may have the key, I suppose?"

He had paid a good deposit and the key was readily forthcoming.

The hiring of the ground floor room accomplished without exciting
suspicion, Kennedy and I made a hasty trip up to his own laboratory,
where he took a small box from a cabinet and hurried back to the taxicab
which had brought us uptown.

Back again in the bare room which he had acquired, Craig set to work
immediately installing a peculiar instrument which he took from the
package.

It seemed to consist of two rods much like electric light carbons, fixed
horizontally in a wooden support with a spindle-shaped bit of carbon
between the two ends of the rods. Wires were connected with binding
screws at the free ends of the carbon rods.

First Craig made a connection with an electric light socket from which
he removed the bulb, cutting in a rheostat. Then he attached the free
wires from the carbons to a sort of telephone headgear and switched on
the current.

"What is it?" I asked curiously.

"A geophone," he replied simply.

"And what is a geophone?" I inquired.

"Literally an earth-phone," he explained. "It is really the simplest
form of telephone, applied to the earth. You saw what it was. Any high
school student of physics can make one, even with two or three dry
batteries in circuit."

"But what does it do?" I asked.

"It is really designed to detect earth vibrations. All that is necessary
is to set the carbon stick arrangement, which is the transmitter of this
telephone, on the floor, place myself at the other end and listen. A
trained ear can readily detect rumblings. Really it is doing in a
different and often better way what the seismograph does. This
instrument is so sensitive that it will record the slamming of a cellar
door across the street. No one can go up those stairs next door without
letting me know it, no matter how cautious he is about it."

Craig stood there some minutes holding the thing over his ears and
listening intently.

"The vibrodyne machine isn't running," he remarked finally after
repeated adjustments of the geophone. "But someone is in that little
room under Creighton's workshop. I suspected that something was down
there after that watch crystal test of mine. Now I know it. I wonder
what the man is doing?"

There was no excuse yet, however, for breaking into the room on the
other side of the wall and under Creighton's. Kennedy went out and
watched. Though we waited some time nobody came out. He went back to our
own room in the rear of the first floor. Though we both listened some
time, neither of us could now hear a sound through the geophone except
those made by passing trolleys and street vehicles.

Inquiry about the neighborhood did not develop who was the tenant or
what was his business. In fact the results were just the reverse. No one
seemed to know even the business conducted there. The room back of the
locked door which Miss Laidlaw had passed was shrouded in mystery.

Nothing at all of any value was being recorded by the geophone when
Kennedy glanced quickly at his watch. "If we are to see Miss Laidlaw and
meet that Mrs. Barry, we had better be on our way," he remarked
hurriedly.

Miss Laidlaw was living in a handsome apartment on Central Park, West.
We entered and gave our cards to the man at the door of her suite, who
bowed us into a little reception room. We entered and waited.

Suddenly we were aware that someone in the next room, a library, was
talking. Whether we would or not we could not help overhearing what was
said. Apparently two women were there, and they were not taking care how
loud they spoke.

"Then you object to my even knowing Mr. Creighton?" asked one of the
voices, pausing evidently for a reply which the other did not choose to
make. "I suppose if it was Mr. Tresham you'd object, too."

There was something "catty" and taunting about the voice. It was a hard
voice, the voice of a woman who had seen much, and felt fully capable of
taking care of herself in more.

"You can't make up your mind which one you care for most, then? Is that
it?" pursued the same voice. "Well, I'll be a sport. I'll leave you
Creighton--if you can keep him."

"I want neither," broke in a voice which I recognized at once as Adele
Laidlaw's.

She spoke with a suppressed emotion which plainly indicated that she did
want one of them.

Just then the butler entered with our cards. We heard no more. A moment
later we were ushered into the library.

Mrs. Barry was a trim, well-groomed woman whose age was deceptive. I
felt that no matter what one might think of Miss Laidlaw, here was a
woman whose very looks seemed to warn one to be on his guard. She was a
woman of the world, confident in her own ability to take care of
herself.

Adele was flushed and excited, as we entered, though she was making a
desperate effort to act as though nothing had happened.

"My friend, Professor Kennedy, and Mr. Jameson," she introduced us
simply, making no pretense to conceal our identity.

Mrs. Barry was, in addition to her other accomplishments, a good
actress. "I've heard a great deal about you, Professor," she said,
extending her hand, but not taking her eyes off Craig's face.

Kennedy met her gaze directly. What did she mean? Had she accepted Miss
Laidlaw's invitation to call in order to look us over, knowing that we
had come to do the same?

"Mr. Creighton tells me that you have been to see his new motor," she
ventured, even before any of us could open the subject.

She seemed to enjoy making the remark for the specific purpose of
rousing Miss Laidlaw. It succeeded amply, also. The implication that
Creighton took her into his confidence was sufficient to cause Adele
Laidlaw to shoot an angry glance at her.

Mrs. Barry had no objection to sticking a knife in and turning it
around. "Of course I don't know as much about such things as Miss
Laidlaw," she purred, "but Mr. Tresham tells me that there may be some
trouble with the patent office about allowing the patent. From all I
have heard there's a fortune in that motor for someone. Wonderful, isn't
it?"

Even the mention of Tresham's name in the studied familiarity of her
tone seemed to increase the scarcely latent hostility between the two
women. Kennedy, so far, had said nothing, content merely to observe.

"It appears to be wonderful," was all he said, guardedly.

Mrs. Barry eyed him sharply and Miss Laidlaw appeared to be ill at ease.
Evidently she wanted to believe in Creighton and his motor, yet her
natural caution forbade her. The entrance of Kennedy into the case
seemed to have proved a disturbing factor between the two women, to have
brought matters to a head.

We chatted for a few minutes, Kennedy deftly refusing to commit himself
on anything, Mrs. Barry seeking to lead him into expressing some
opinion, and endeavoring to conceal her exasperation as he avoided doing
so.

At last Kennedy glanced at his watch, which reminded him of a mythical
appointment, sufficient to terminate the visit.

"I'm very glad to have met you," he bowed to Mrs. Barry, as she, too,
rose to go, while he preserved the fiction of merely having dropped in
to see Miss Laidlaw. He turned to her. "I should be delighted to have
both you and Mr. Tresham drop in at my laboratory some time, Miss
Laidlaw."

Miss Laidlaw caught his eye and read in it that this was his way, under
the circumstances, of asking her to keep in touch with him.

"I shall do so," she promised.

We parted from Mrs. Barry at the door of her taxicab.

"A very baffling woman," I remarked a moment later. "Do you suppose she
is as intimate with Creighton as she implies?"

Kennedy shook his head. "It isn't that that interests me most, just
now," he replied. "What I can't figure out is Adele Laidlaw's attitude
toward both Creighton and Tresham. She seems to resent Mrs. Barry's
intimacy with either."

"Yes," I agreed. "Sometimes I have thought she really cared for both--at
least, that she was unable to make up her mind which she cared for most.
Offhand, I should have thought that she was the sort who wouldn't think
a man worth caring much for."

Kennedy shook his head. "Given a woman, Walter," he said thoughtfully,
"whose own and ancestral training has been a course of suppression,
where she has been taught and drilled that exhibitions of emotion and
passion are disgraceful, as I suspect Miss Laidlaw's parents have
believed, and you have a woman whose primitive instincts have been
stored and strengthened. The instincts are there, nevertheless, far back
in the subconscious mind. I don't think Adele Laidlaw knows it herself,
but there is something about both those men which fascinates her and she
can't make up her mind which fascinates her most. Perhaps they have the
same qualities."

"But Mrs. Barry," I interrupted. "Surely she must know."

"I think she does," he returned. "I think she knows more than we
suspect."

I looked at him quickly, not quite making out the significance of the
remark, but he said no more. For the present, at least, he left Adele
Laidlaw quite as much an enigma as ever.

"I wish that you would make inquiries about regarding Mrs. Barry," he
said finally as we reached the subway. "I'm going down again to the
little room we hired and watch. You'll find me at the laboratory later
tonight."




CHAPTER XXVII

THE PERPETUAL MOTION MACHINE


I tried my best, but there was very little that I could find out about
Mrs. Barry. No one seemed to know where she came from, and even "Mr.
Barry" seemed shrouded in obscurity. I was convinced, however, that she
was an adventuress.

One thing, however, I did turn up. She had called on Tresham at his
office a number of times, usually late in the afternoon, and he had
taken her to dinner and to the theater. Apparently he knew her a great
deal better than he had been willing to admit to us. I was not
surprised, for, like a good many men of his class, Tresham was better
known in the white light district than one might suspect. Mrs. Barry had
all the marks of being good company on such an excursion.

On the way uptown, I stopped off in the neighborhood of Longacre Square
in the hope of picking up some more gossip at one or another of the
clubs. Tresham was a member of several, though as near as I could find
out, used them more for business than social reasons. On Broadway it was
different, however. There he was known as a liberal spender and lover of
night life. Like many others he now and then accumulated quite large
bills. I wondered whether Mrs. Barry had not found out and taken
advantage of his weakness.

It was, as I have said, comparatively little that I had been able to
discover, yet when I met Kennedy again, later in the evening, at his
laboratory, he listened eagerly to what I had to report.

"Did anything happen downtown?" I asked when I had finished.

"Nothing much," he returned. "Of course, listening over the geophone, I
couldn't watch the Bank Building, too. There's something very queer
about Creighton. I could hear him at work in the room upstairs until
quite late, making a lot of noise. If I don't find out anything more
definite soon, I shall have to adopt some other measures."

"You didn't do anything more about that electrolysis clew?" I queried.

"Nothing," he replied briefly, "except that I inquired of the electric
light company and found out that Creighton, or someone in his building,
was using a good deal of power."

"That looks bad," I ventured, remembering the claims made for the engine
and the comparatively weak batteries that were said to run it.

Kennedy nodded acquiescence, but said nothing more. We walked over in
silence to our apartment on the Heights and far into the night Craig sat
there, shading his eyes with his hand, apparently studying out the
peculiar features of the case and planning some new angle of approach at
it tomorrow.

We were surprised the next day to receive an early visit from Miss
Laidlaw at the laboratory. She drove up before the Chemistry Building,
very much excited, as though her news would not bear repeating even over
the telephone.

"What do you think?" she exclaimed, bursting in on us. "Mr. Creighton
has disappeared!"

"Disappeared?" repeated Kennedy. "How did you find it out?"

"Mr. Tresham just telephoned me from his office," she hurried on. "He
was going into the Bank Building when he saw a wagon drive off from the
place next door. He thought it was strange and instead of going on up to
his own office he walked into Creighton's. When he tried to get in, the
place was locked. There's a sign on it, too, 'For Rent,' he says."

"That's strange," considered Kennedy. "I suppose he didn't notice what
kind of wagon it was?"

"Yes, he said it looked like a junk wagon--full of stuff."

I looked from Miss Laidlaw to Kennedy. Plainly our entrance into the
case had been the signal for the flitting of Creighton.

Quickly he reached for the telephone. "You know Mrs. Barry's number?" he
asked.

"Yes, it's the Prince Edward Hotel."

He called up, but the conversation was over in a moment. "She didn't
return to the hotel last night," he announced as he hung up the
receiver.

"She's in this thing, too," exclaimed Adele Laidlaw. "Can you go down
with me now and meet Mr. Tresham? I promised I would."

Though she repressed her feelings, as usual, I could see that Adele
Laidlaw was furious. Was it because Creighton had gone off with her
money, or was it pique because Mrs. Barry had, perhaps, won him? At any
rate, someone was going to feel the fury of her scorn.

We motored down quickly in Miss Laidlaw's car and met Tresham, who was
standing in front of the Bank Building waiting for us.

"It just happened that I came down early this morning," he explained,
"or I shouldn't have noticed anything out of the way. The junk wagon was
just driving away as I came up. It seemed to be in such a hurry that it
attracted my attention."

It was the first time we had seen Tresham and Miss Laidlaw together and
I was interested to see how they would act. There was no mistaking his
attitude toward her and Adele was much more cordial to him than I had
expected.

"While I was waiting I got a key from the agent," he explained. "But I
didn't want to go in until you came."

Tresham opened the door and led the way upstairs, Miss Laidlaw following
closely. As we entered Creighton's shop, everything seemed to be in the
greatest disorder. Prints and books were scattered about, the tools were
lying about wherever they happened to have been left, all the models
were smashed or missing and a heap of papers in the fireplace showed
where many plans, letters and other documents had been burned.

We hurried into the big room. Sure enough, the demon motor itself was
gone! Creighton had unbolted it from the floor and some holes in the
boards had been plugged up. The room below was still locked and the
windows were covered with opaque paper on the inside.

"What do you suppose he has done with the motor?" asked Adele.

"The only clew is a junk dealer whom we don't know," I replied, as
Kennedy said nothing.

We looked about the place thoroughly, but could find nothing else.
Creighton seemed to have made a clean getaway in the early hours.

"I wish I could stay and help you," remarked Tresham at length. "But I
must be in court at ten. If there's anything I can do, though, call on
me."

"I'm going to find that engine if I have to visit every junk dealer in
New York," declared Miss Laidlaw soon after Tresham left.

"That's about all we can do, yet, I guess," remarked Kennedy, evidently
not much worried about the disappearance of the inventor.

Together we three closed up the workshop and started out with a list
from a trade publication giving all those who dealt in scrap iron and
old metal. In fact we spent most of the day going from one to another of
the junk shops. I never knew that there were so many dealers in waste.
They seemed to be all over the city and in nearly every section. It was
a tremendous job, but we mapped it out so that we worked our way from
one section to another.

We had got as far as the Harlem River when we entered one place and
looked about while we waited for someone in charge to appear.

I heard a low exclamation from Kennedy, and turned to look in the
direction he indicated. There, in a wagon from which the horse had been
unhitched, was the heavy base of the engine into which so many dollars
had been turned--sold as so much scrap!

Kennedy examined it quickly, while I questioned a man who appeared from
behind a shed in the rear. It was useless. He could give no clew that
we already could not guess. He had just bought it from a man who seemed
anxious to get rid of it. His description of the man tallied with
Creighton. But that was all. It gave us no chance to trace him.

"Look," exclaimed Kennedy eagerly, bending closer over the motor. "This
is one of the neatest perpetual motion frauds I ever heard of."

He had turned the heavy base of the motor upward. One glance left me
with little wonder why Creighton had so carefully bolted the machine to
the floor. In the base were two rectangular apertures to allow a belt to
run over a concealed pulley on the main shaft of the machine in the
case. Evidently, when the circuit from the Daniell cells was closed, the
pulley, somehow, was thrown into gear. It was loose and the machine
began to revolve slowly at first, then faster and with great show of
power. The pounding, as Kennedy had surmised, was due to the flywheel
not well balanced.

"Well," I remarked, "now that we have found it, I don't see that it does
us much good."

"Only that we understand it," returned Craig. "I left that geophone down
there in the room next door which I hired. I think, if Miss Laidlaw will
take us down there, I'd like to get it."

He spoke with a sort of easy confidence which I knew was hard to be
assumed in the face of what looked like defeat. Had Craig deliberately
let Creighton have a chance to get away, in order that he might convict
himself?

In silence, with Miss Laidlaw at the wheel, we went downtown again to
the room which Craig had hired next to Creighton's workshop. As we
approached it, he leaned over to Miss Laidlaw.

"Stop around the corner," he asked. "Let's go in quietly."

We entered our bare little room and Kennedy set to work as though to
detach the geophone, while I explained it to our client.

"What's the matter?" she interrupted in the middle of my explanation,
indicating Kennedy.

He had paused and had placed the receivers to his ears. By his
expression I knew that the instrument was registering something.

"Someone is in the lower room of the shop next door," he answered,
facing us quickly. "If we hurry, we'll have him cornered."

Miss Laidlaw and I went out and around in front, while Craig dashed
through a back door to cut off retreat that way.

"What's that? Hurry!" exclaimed Miss Laidlaw.

Plainly there was a muffled scream of a woman as we entered the street
door. I hurried forward. It was the work of only a few seconds to batter
down the locked door in the room under Creighton's old workshop, and as
the door gave way, I heard the sound of shattered glass from the rear
which told that Kennedy had heard the scream, too, and had gained an
entrance.

Inside I could make out in the half-light a man and a woman. The woman
was running toward me, as if for help.

"Mrs. Barry!" gasped Adele Laidlaw.

"He got me here--to kill me!" she cried hysterically. "I am the only one
who knows the truth--it was the last day--tonight he would have had the
money--and I would have been out of the way. But I'll expose him--I'll
ruin him. See--he came in from the roof--"

A blinding flash of light greeted us, followed by a scream from Adele
Laidlaw, as she ran past us and dropped on her knees beside a body that
had fallen with a thud in the flame before a yawning hole in the side
wall.

Mrs. Barry ran past me, back again, at almost the same moment. It was a
strange sight--these two women glaring at each other over the prostrate
figure of the man.

"Here's the real demon engine," panted Craig, coming up from the back
and pointing to an electric motor as well as other apparatus consisting
of several series of coils. "The perpetual motion machine was just a
fake. It was merely a cover to an attempt to break into the bank vaults
by electrolysis of the steel and concrete. Creighton was a dummy, a
fiction--to take the blame and disappear when the robbery was
discovered."

"Creighton," I repeated, looking at the man on the floor, "a dummy?"

"Oh--he's dead!" wailed Adele Laidlaw. "He's dead!"

"Electrocuted by his own machine rather than face disgrace and
disbarment," cut in Craig. "No wonder she was in doubt which of the two
men fascinated her most."

I moved forward and bent over the contorted form of the lawyer, Tresham,
who was wearing the whiskers and iron gray wig of his alter-ego,
Creighton.




CHAPTER XXVIII

THE CANCER HOUSE


"You've heard of such things as cancer houses, I suppose, Professor
Kennedy?"

It was early in the morning and Craig's client, Myra Moreton, as she
introduced herself, had been waiting at the laboratory door in a state
of great agitation as we came up. Just because her beautiful face was
pale and haggard with worry, she was a pathetic figure, as she stood
there, dressed in deep mourning, the tears standing in her eyes merely
because we were a little later than usual.

"Well," she hurried on as she dropped into a chair, "that is what they
are calling that big house of ours at Norwood--a cancer house, if there
is such a thing."

Clearly, Myra Moreton was a victim of nervous prostration. She had asked
the question with a hectic eagerness, yet had not waited for an answer.

"Oh," she exclaimed, "you do not, you cannot know what it means to have
something like this constantly hanging over you. Think of it--five of us
have died in less than five years. It haunts me. Who next. That is all I
can think about. Who next?"

Her first agitation had been succeeded by a calmness of despair, almost
of fatalism, which was worse for her than letting loose her pent-up
emotions.

I had heard of cases of people in whom there was no record of hereditary
predisposition to cancer, people apparently in perfect health, who had
moved into houses where cancer patients had lived and died and had
themselves developed the disease. Though I had, of course, never even
remotely experienced such a feeling as she described, I could well fancy
what it must be to her.

Kennedy watched her sympathetically. "But why do you come to me?" he
asked gently. "Don't you think a cancer specialist would be more likely
to help you?"

"A specialist?" she repeated with a peculiar hopelessness. "Professor
Kennedy, five years ago, when my Uncle Frank was attacked by cancer,
father was so foolish as to persuade him to consult a specialist whose
advertisement he saw in the papers, a Dr. Adam Loeb on Forty-second
Street here in New York. Specialist! Oh, I'm worried sick every time I
have a sore or anything like this on my neck or anywhere else."

She had worked herself from her unnatural calm almost into a state of
hysterics as she displayed a little sore on her delicate white throat.

"That?" reassured Kennedy. "Oh, that may be nothing but a little boil.
But this Dr. Loeb--he must be a quack. No doctor who advertises--"

"Perhaps," she interrupted. "That is what Dr. Goode out at Norwood tells
me. But father has faith in him, even has him at the house sometimes. I
cannot bear the sight of him. Since I first saw him my uncle, his wife,
another aunt, my cousin have died, and then, last week, my--my mother."

Her voice broke, but with a great effort she managed to get herself
together. "Now I--I fear that my father may go next. Perhaps it will
strike me--or my brother, Lionel--who can tell? Think of it--the whole
family wiped out by this terrible thing. Can it be natural, I ask
myself? Is there not something back of it?"

"Who is this Dr. Loeb?" asked Kennedy, more for the purpose of aiding
her in giving vent to her feelings than anything else.

"He is a New York doctor," she reiterated. "I believe he claims to have
a sure cure for cancer, by the use of radium and such means. My father
has absolute confidence in him--visits him at his office and, as I told
you, even has him at Norwood. In fact they are quite friendly. So was
Lionel until lately."

"What happened to shake your brother's faith?" asked Craig.

"Nothing, I imagine, except that Lionel began thinking it over after
someone told him about cancer houses. You must admit yourself that it
is--at least strange. I wish you could see Lionel. He knows more about
it than I do. Or Dr. Goode. I think he has made some kind of test. He
could tell you much better than I can all the strange history. But they
don't agree--Lionel and Gail. Oh--it is more than I can stand. What
shall I--"

She had fainted. In an instant I was at her side, helping Kennedy bring
her around.

"There, there," soothed Kennedy several minutes later as her deep eyes
looked at him appealingly. "Perhaps, after all, there may be something I
can do. If I should go out to Norwood with you as soon as you feel
better, wouldn't that be all right?"

"Oh--will you?" she cried, overjoyed. "If you would--how could I ever
thank you? I feel better. No--don't stop me. I've been living on nerve.
I can do more. Please--let me telephone Lionel that we are coming."

Kennedy humored her, although I knew he had several important
investigations going on at the time. It was scarcely an hour before we
were on the train and in the early forenoon we were met by her brother
at the station in a light car.

Through the beautiful streets of the quaint old Connecticut town we rode
until at last we stopped before a great stone house which had been the
Moreton mansion for several generations.

It was a double house, a gloomy sort of place, surrounded by fir trees,
damp and suggestive of decay. I could not help feeling that if ever
there were a house about which I could associate the story which Myra
had poured forth, this was it. Somehow, to me at least, it had all the
mystery of being haunted.

Darius Moreton, her father, happened to be at home to lunch when we
arrived. He was a man past middle age. Like his father and grandfather,
he was a manufacturer of optical goods and had increased the business
very well. But, like many successful business men, he was one of those
who are very positive, with whom one cannot argue.

Myra introduced Kennedy as interested in cause and treatment of cancer,
and especially in the tracing down of a definite case of a "cancer
house."

"No," he shook his head grimly, "I'm afraid it is heredity. My friend,
Dr. Loeb, is the only one who understands it. I have the most absolute
confidence in him."

He said it in a way that seemed to discourage all argument. Kennedy did
not antagonize him by disagreeing, but turned to Lionel, who was a
rather interesting type of young man. Son of Darius Moreton by his first
wife, Lionel had gone to the scientific school as had his father and,
graduating, had taken up the business of the Moreton family as a matter
of course.

Myra seemed overcome by the journey to the city to see Kennedy and,
after a light luncheon, Lionel undertook to talk to us and show us
through the house. It was depressing, almost ghastly, to think of the
slow succession of tragedies which these walls had witnessed.

"This is a most unusual case," commented Craig thoughtfully as Lionel
went over briefly the family history. "If it can be authenticated that
this is a cancer house, I am sure the medical profession will be
interested, for they seem to be divided into two camps on the question."

"Authenticated?" hastened Lionel. "Well, take the record. First there
was my Uncle Frank, who was father's partner in the factory. He died
just about five years ago at the age of fifty-one. That same year his
wife, my Aunt Julia, died. She was just forty-eight. Then my other aunt,
Fanny, father's sister, died of cancer of the throat. She was rather
older, fifty-four. Not quite two years afterward my cousin, George, son
of Uncle Frank, died. He was several years younger than I, twenty-nine.
Finally my step-mother died, last week. She was forty-nine. So, I
suppose we may be pardoned if, somehow, in spite of the fact, as you
say, that many believe that the disease is not contagious or infectious
or whatever you call it, we believe that it lurks in the house. Myra and
I would get out tomorrow, only father insists that there is nothing in
it, says it is all heredity. I don't know but that that's worse. That
means that there is no escape."

We had come down the wide staircase into the library, where we joined
Myra, who was resting on a chaise-longue.

"I should like very much to have a talk with Dr. Goode," suggested
Craig.

"By all means," agreed Myra eagerly. "I'll go over to his office with
you. It is only next door."

"Then I'll wait here," said Lionel, rather curtly, I thought.

I fancied that there was a coolness that amounted to a latent hostility
between Lionel and Dr. Goode, and I wondered about it.

Across the sparse lawn that struggled up under the deep shade of the
trees stood a smaller, less pretentious house of a much more modern
type. That was where Dr. Goode lived.

We crossed with Myra through a break in the hedge between the two
houses. As we were about to pass between the two grounds, Kennedy's foot
kicked something that seemed to have rolled down from some rubbish on
the boundary line of the two properties, piled up evidently waiting to
be carted away.

Craig stooped casually and picked the object up. It was a queer V-shaped
little porcelain cone. He gave it a hasty look, then dropped it into his
pocket.

Dr. Goode, into whose office Myra led us, was a youngish man,
smooth-shaven, the type of the new generation of doctors. He had come
to Norwood several years before and had struggled up to a very fair
practice.

"Miss Moreton tells me," began Kennedy after we had been introduced,
"that there is a theory that theirs is one of these so-called cancer
houses."

The doctor looked at us keenly. "Yes," he nodded, "I have heard that
theory expressed--and others, too. Of course, I haven't had a chance to
verify it. But I may say that, privately, I am hardly prepared to accept
it, yet, as a case of cancer house."

He was very guarded in his choice of words, but did not succeed in
covering up the fact that he had a theory of his own.

I was watching both the young doctor and Myra. She had entered his
office in a way that suggested that she was something more than a
patient. As I watched them, it did not take one of very keen perception
to discover that they were on very intimate terms indeed and thought
very highly of each other. A glance at the solitaire on Myra's finger
convinced me. They were engaged.

"You don't believe it, then?" asked Craig quickly.

The young man hesitated and shrugged his shoulders.

"You have a theory of your own?" persisted Craig, determined to get an
answer.

"I don't know whether I have or not," he replied non-committally.

"Is it that you think it possible to produce cancer artificially and
purposely?" shot out Craig.

Dr. Goode considered. I wondered whether he had any suspicions of which
he would not speak because of professional ethics. Kennedy had fixed
his eyes on him sharply and the doctor seemed uneasy under the scrutiny.

"I've heard of cases," he ventured finally, "where X-rays and radium
have caused cancerous growths. You know several of the experimenters
have lost their lives in that way--martyrs to science."

I could not help, somehow or other, thinking of Dr. Loeb. Did Dr. Goode
refer indirectly to him? Loeb certainly was no martyr to science. He
might be a charlatan. But was he a scientific villain?

"That may all be true," pursued Craig relentlessly, evidently bound to
draw the young man out. "But it is, after all, a question of fact, not
of opinion."

Myra was looking at him eagerly now and the doctor saw that she expected
him to speak. It was more pressure than he could resist.

"I have long suspected something of the sort," he remarked in a low,
forced tone. "I've had samples of the blood of the Moretons examined. In
fact I have found that their blood affects the photographic plate
through a layer of black paper. You know red blood cells and serum have
a distinct power of reducing photo-silver on plates when exposed to
certain radiations. In other words, I have found that their blood is,
apparently, radioactive!"

Myra looked at him aghast. It was evidently the first time he had said
anything about this new suspicion, even to her. The very idea was
shocking. Could it be that someone was using these new forces with
devilish ingenuity?

"If that's the case, who would be the most likely person to do such a
thing?" shot out Craig.

"I wouldn't like to say," he returned, dodging, though we were all
thinking of Dr. Loeb.

"But the motive?" demanded Craig. "What motive would there be?"

"Darius Moreton is very intimate with a certain person," he returned
enigmatically. "It is even reported in town that he has left that person
a large sum of money in his will in payment for his services, if you
call them so, to the family."

He had evidently not intended to say so much and, although Craig tried
in every way, he could not get the doctor to amplify what he had hinted
at.

We returned to the Moreton house, Kennedy apparently much impressed by
what Dr. Goode had said.

"If you will permit me," he asked, "I should like to have a few drops of
blood from each of you."

"Goode tried that," remarked old Mr. Moreton. "I don't know that
anything came of it. Still, I am not going to refuse, if Myra and Lionel
agree."

Craig had already taken from his pocket a small case containing a
hypodermic and some little glass tubes. There seemed to be no valid
objection and from each of them he drew off a small quantity of blood.
As he worked, I thought I saw what he had in mind. Could there be, I
wondered, an X-ray outfit or perhaps radium concealed about the living
rooms of the house? First of all, it was necessary to verify Dr. Goode's
observations.

We chatted a few moments, then took leave of Myra Moreton.

"Keep up your courage," whispered Craig with a look that told her that
he had seen the conflict between loyalty to her father and to her
lover.

Lionel drove us back to the station in the car alone. Nothing of
importance was said by any of us until we had almost reached the
station.

"I can see," he said finally, "that you don't feel sure that it is a
cancer house."

Kennedy said nothing.

"Well," he pursued, "I don't know anything about it, of course. But I do
know this much--those doctors are making a good thing out of father and
the rest of us."

The car had pulled up. "I've got no use for Loeb," the young man went
on. "Still, I'd rather not that we had trouble with him. I'll tell you,"
he added in a burst of confidence, "he has a little girl who works for
him, his secretary, Miss Golder. She comes from Norwood. I should hate
to have anything happen to queer her. People used to think Goode was
engaged to her before he took that office next to us and got ambitious.
Father placed her with Dr. Loeb. If it's necessary to do anything with
him, I wish you'd think whether she couldn't be kept out of it in some
way."

"I'll try to do it," agreed Craig, as we shook hands and climbed on the
early afternoon train back to the city.




CHAPTER XXIX

THE QUACK DOCTORS


Kennedy's first move was to go downtown to the old building opposite the
City Hall and visit the post-office inspectors.

"I've heard of the government's campaign against the medical quacks who
are using the mails," he introduced when we at last found the proper
inspector. "I wonder whether you know a Dr. Adam Loeb?"

"Loeb?" repeated the inspector, O'Hanlon, who was in charge of the
investigation which was then in progress. "Of course we know Loeb--a
very slippery customer, too, with just enough science at his command to
make the case against him difficult.

"I suppose," went on O'Hanlon, "you know that in Europe the popular
furore about radium and its applications appeared earlier than it did
here. But now we have great numbers of dishonest and fake radium cure
establishments. Usually they have neither radium nor knowledge. They
promise a cure, but they can't even palliate the trouble. Loeb has some
radium, I guess, but that's about all."

"I think I'd like to visit the 'doctor' and his 'medical museum,'"
ventured Kennedy when O'Hanlon had finished describing the case to us.

"Very well," agreed O'Hanlon. "Our cases against the quacks are just
about completed. I've heard a great deal about you, Mr. Kennedy. I
think I may trust you."

The inspector paused. "Tomorrow," he added, looking at us significantly,
"we have planned a simultaneous raid of all of them in the city.
However, there's no objection to your seeing Dr. Loeb, if you'll be
careful to give no hint that something is about to be pulled off. I'm
sure any new evidence we may get against him will be quite welcome."

"I'd like to see him in action before the raid," hastened Craig.

"Well, I think the best way, then, for you to get at him," advised the
inspector, "would be to adopt the method my investigators use with these
fakers. I mean for one or the other of you to pose as a prospective
patient. Only don't let him treat you too much with any of those
electrical things of his."

Craig glanced over at me whimsically.

"Oh," I said good-humoredly, "I'll be the goat, if that's what you're
going to ask me."

Craig laughed.

"Come in tomorrow," called the inspector as we left. "I'd like to hear
what happens and I may be able to add something to what you find out."

We found Dr. Loeb established in a palatial suite of offices in an
ultra-modern office building. Outside was what he called his "medical
museum." It was a grewsome collection of wax figures and colored charts
well calculated to prepare one for the worst. At the end of the room was
a huge sign bearing his name and the words, "Positive Cure for Cancer
Without Cautery or the Knife."

There were no cappers or steerers about the place, though I have no
doubt he had them working for him outside to bring in business. Instead,
we were met by a very pretty, fluffy-haired girl, evidently the doctor's
secretary. She, I gathered, was the Miss Golder whom Lionel had
mentioned. In fact, I felt that she was really much above the level of
such a position.

Loeb's office was elaborately equipped. There were static machines,
electric coils, high frequency appliances, X-ray outfits, galvanic and
faradic cabinets, electric light reflectors of high power, light bath
cabinets, electric vibrators, high pressure nebulizers and
ozonizers--everything, as Craig expressed it later, to impress the
patient that Loeb could cure any disease the flesh was heir to. I know
that it impressed me.

The doctor himself was a pompous man of middle age, with a very
formidable beard and a deep voice that forbade contradiction.

"I've come to you on the recommendation of a patient of yours," began
Craig, adding hastily, "not for myself, but for my friend here, whom I'm
afraid isn't very well."

The doctor eyed me through his gold-rimmed spectacles. Already I began
to feel shaky.

"Who recommended you?" he asked casually.

"My friend, Mr. Darius Moreton of Norwood. I suppose you remember him?"

"Oh, very well, very well. A most peculiar case, that of the Moretons. I
have succeeded in prolonging their lives beyond what anyone else could
have done. But I fear that they haven't all followed my treatment. You
know, you must put yourself entirely in my hands, and there is a young
doctor out there, I believe, whom they have also. That isn't fair to
me. I wonder whether you are acquainted with my methods of treatment?"

Kennedy shook his head negatively.

"Miss Golder," the doctor called, as the fluffy-haired secretary
responded quickly, "will you give these gentlemen some of my booklets on
the Loeb Method."

Miss Golder took from a cabinet several handsomely printed pamphlets
extolling the skill and success of Dr. Loeb. Like everything else about
him, no expense had been spared to impress the reader.

As Miss Golder left the office, Dr. Loeb began a rapid examination of
me, using an X-ray machine. I am sure that if I had not received a
surreptitious encouraging nod from Craig now and then, I should have
been ready to croak or cash in, according to whichever Dr. Loeb
suggested--probably the latter, for I could not help thinking that a
great deal of time was spent in mentally X-raying my pocketbook.

When he finished, the doctor shook his head gravely. Of course I was
threatened. But the thing was only incipient. Still, if it were not
attended to immediately it was only a question of a short time when I
might be as badly, as the wax figures and charts outside. I had
fortunately come just in time to be saved.

"I think that with the electrical treatment we can get rid of that
malignant growth in a month," he promised, fixing a price for the
treatment which I thought was pretty high, considering the brief time he
had actually spent on me, and the slight cost of electric light and
power.

I paid him ten dollars on deposit, and after a final consultation we
left the doctor's office. I was to return for a treatment in a couple of
days.

We turned out of the entrance of the office building just as scores of
employés were hurrying home. As we reached the door, I felt Kennedy
grasp my arm. I swung around. There, in an angle of the corridor, I
caught sight of a familiar figure. Dr. Goode was standing, evidently
waiting for someone to come out. There were several elevators and the
crowd of discharging passengers was thick. He had been so intent on
looking for someone he expected, apparently, that he had missed us.

Kennedy drew me on into the doorway of the building next door, from
which we could observe everyone who went in and out of the skyscraper in
which Dr. Loeb had his offices.

"I wonder what he's down here for," scowled Kennedy.

"Perhaps he's doing some detective work of his own," I suggested.

"Lionel Moreton said that Miss Golder and he used to be intimate,"
ruminated Kennedy. "I wonder if he's waiting for her?"

We did not have long to wait. It was only a few minutes when Kennedy's
surmise proved correct. Miss Golder and Dr. Goode came out, and turned
in the direction of the railroad station for Norwood. He was eagerly
questioning her about something, perhaps, I imagined, our visit to Dr.
Loeb. What did it mean?

There was no use and it was too risky to follow them. Kennedy turned and
we made our way uptown to the laboratory, where he plunged at once into
an examination of the blood specimens he had taken from the Moretons
and of the peculiar porcelain cone which he had picked up in the rubbish
pile between the two houses.

Having emptied the specimens of blood in several little shallow glass
receptacles which he covered with black paper and some very sensitive
films, he turned his attention to the cone. I noted that he was very
particular in his examination of it, apparently being very careful to
separate whatever it was he was looking for on the inside and the
outside surfaces.

"That," he explained to me at length as he worked, "is what is known as
a Berkefeld filter, a little porous cup, made of porcelain. The minute
meshes of this filter catch and hold bacteria as if in the meshes of a
microscopic sieve, just like an ordinary water filter. It is so fine
that it holds back even the tiny bacillus fluorescens liquefaciens which
are used to test it. These bacilli measure only from a half to one and
one-and-a-half micromillimeters in diameter. In other words 130,000
germs of half a micromillimeter would be necessary to make an inch."

"What has it been used for?" I ventured.

"I can't say, yet," he returned, and I did not pursue the inquiry,
knowing Kennedy's aversion to being questioned when he was not yet sure
of his facts.

It was the next day when the post-office inspectors, the police and
others who had been co-operating had settled on the raid not only of Dr.
Loeb's but of all the medical quacks who were fleecing the credulous of
the city out of hundreds of thousands of dollars a year by one of the
most cruel swindles that have ever been devised.

For the time, Kennedy dropped his investigations in the laboratory and
we went down to O'Hanlon's office, where a thick batch of warrants, just
signed, had been received.

Quickly O'Hanlon disposed his forces so that in all parts of the town
they might swoop down at once and gather in the medical harpies. Dr.
Loeb's stood first on the list of those which O'Hanlon decided to handle
himself.

"By the way," mentioned O'Hanlon as we hurried uptown to be ready in
time, "I had a letter from Darius Moreton this morning threatening me
with all kinds of trouble unless we let up on Dr. Loeb. It's pretty hard
to keep a big investigation like this secret, but I think we've planned
a little surprise for this morning."

With the post-office inspector we climbed into a patrol wagon with a
detail of police who were to make a general round-up of the places on
Forty-second Street.

As the wagon backed up to the curb in front of the building in which
Loeb's office was, the policemen hopped out and hurried into the
building before a crowd could collect. Unceremoniously they rushed
through the outer office, headed by O'Hanlon.

Quickly though the raid was executed, it could not be done without some
warning commotion. As we entered the front door of the office, we could
just catch a glimpse of a man retreating through a back door. There was
something familiar about his back, and Kennedy and I started after him.
But we were too late. He had fled without even waiting for his hat,
which lay on Miss Golder's desk, and had disappeared down a back
stairway which had been left unguarded.

"Confound it," muttered O'Hanlon, as we returned, "Loeb hasn't been here
today. Who was that?"

"I don't know," replied Craig, picking up the hat, underneath which lay
a package.

He opened the package. Inside were half a dozen Berkefeld filters, those
peculiar porcelain cones such as we had found out at Norwood.

Quickly Craig ran his eye over the mass of papers on Miss Golder's desk.
He picked up an appointment book and turned the pages rapidly. There
were several entries that seemed to interest him. I bent over. Among
other names entered during the past few days I made out both "Moreton"
and "Dr. Goode." I recalled the letter which O'Hanlon had received from
Moreton. Had he or someone else got wind of the raids and tipped off Dr.
Loeb?

Above the hubbub of the raid I could hear O'Hanlon putting poor little
Miss Golder through a third degree.

"Who was it that went out?" he shouted into her face. "You might as well
tell. If you don't it'll go hard with you."

But, like all women who have been taken into these get-rich-quick
swindles, she was loyal to a fault. "I don't know," she sobbed, dabbing
at her eyes with a bit of a lace handkerchief.

Nor could all of O'Hanlon's bulldozing get another admission out of her
except that it was a "stranger." She protested and wept. But she even
rode off in the patrol wagon with the rest of the employés unmoved.

Whom was she shielding? All we had was the secretary, a couple of
cappers, and half a dozen patients, regular and prospective, who had
been waiting in the office. We had a wagon-load of evidence, including
letters and circulars, apparatus of all kinds, medicines, and pills. But
there was nothing more. Craig did not seem especially interested in the
mass of stuff which the police had seized.

In fact the only thing that seemed to interest him was the man who had
disappeared. We had his hat and the package of filters. Craig picked up
the hat and examined it.

"It's a soft hat and consequently doesn't tell us very much about the
shape of his head," he remarked. Then his face brightened. "But he
couldn't have left anything much better," he remarked complacently, as
he went over to one of the little wall cabinets which the towel service
companies place over wash-basins in offices. He took from it a comb and
brush and wrapped them up carefully.

I looked at the hat also. There was no name in it, not even the usual
initials. What did Craig mean?

Other raids in various parts of the city proved far more successful than
the one in which we had participated and O'Hanlon quickly forgot his
chagrin in the reports that soon came piling in. As for ourselves we had
no further interest except in the disposition of this case, and Craig
decided shortly to go back to work again in the laboratory among his
test-tubes, slides, and microscopes.

"I will leave you to follow the cases against the quacks, particularly
Dr. Loeb and Miss Golder, Walter," he said. "By the way, you saw me take
that hair brush. I wish I had a collection of them. In some way you
must get me a hair brush from Dr. Goode. You'll have to take a trip out
to Norwood. And while you are there, get the brushes from Darius Moreton
and Lionel. I don't know how you'll get Goode's, but Myra will help you
with the others, I'm sure."

He turned to his work and was soon absorbed in some microscopic studies,
leaving me no chance to question him about his strange commission.




CHAPTER XXX

THE FILTERABLE VIRUS


I was surprised to run into O'Hanlon himself in the train out to
Norwood. The failure to get Dr. Loeb troubled him and he had reasoned
that if Darius Moreton took the trouble to write a letter about his
friend he might possibly know more of his whereabouts than he professed.
We discussed the case nearly the whole journey, agreeing to separate
just before we reached the station in order not to be seen together.

It took me longer to carry out Kennedy's request than I had expected. I
found Myra at home alone, very much excited.

"Someone called me up from New York this morning," she said, "and asked
whether father and Lionel were at home. I thought they were at the
factory, but when I called there, the foreman told me they hadn't been
there. And Dr. Goode is out, too--hasn't seen any of his patients today.
Oh, Mr. Jameson, what does it all mean? Where have they gone?"

I was a poor one to comfort her, for I had no idea myself. Still, I did
my best, and incidentally secured the brushes, though I must confess I
had to commit a little second-story work to get into Dr. Goode's.

It seemed heartless to leave the poor girl all alone, but I knew that
Kennedy was waiting anxiously for me. I promised to make inquiries all
over about her father, Lionel, and Dr. Goode, and, I think, the mere
fact that someone showed an interest in her cheered her up, especially
when I told her Kennedy was working hard on the case.

As I waited for the train that was to take me back to the city, the
train from New York pulled in. Imagine my surprise when I saw Miss
Golder step off nervously and hurry up the main street.

I watched her, debating what to do, whether to let Kennedy wait and
follow her, or not.

"Someone, they don't know who, bailed her out," I heard a voice whisper
in my ear.

I turned quickly. It was O'Hanlon. "She put up cash bail," he added
under his breath. "No one knows where she got it. I'm waiting until she
turns that corner--then I'm going to shadow her. I can't seem to find
anyone in this town just now. Perhaps she knows where Loeb is."

"If you get on the trail, will you wire me?" I asked. "Here's my train
now."

O'Hanlon promised, and as I swung on the step I caught a last glimpse of
him sauntering casually in the direction Miss Golder had taken.

I handed Kennedy the brushes I had obtained, but he gave me no
opportunity to satisfy my curiosity. Instead, he started me out again to
keep in touch with the progress made in the cases of the quacks,
particularly the search for Dr. Loeb, which seemed to interest him quite
as much as the bailing out of Miss Golder.

It was after dinner and I was preparing to follow the cases on into the
night court, if necessary, when one of O'Hanlon's assistants hurried up
to me.

"We've just had a wire from Mr. O'Hanlon," he cried excitedly, handing
me a telegram.

I read:

     "Loeb captured Norwood. Darius Moreton hiding him in vacant
     house outside town. Advise Kennedy."

I dashed for the nearest telephone and called up Craig.

"Fine, Walter," he shouted back. "I am ready. Meet me at the station and
wire O'Hanlon to wait there for us."

We made the journey to Norwood as impatiently as any two passengers on
the accommodation at that hour of night, Craig carrying his evidence in
the case in a little leather hand satchel.

Already, out at the old house, O'Hanlon had gathered the Moreton family,
Dr. Goode, who had turned up with the rest, Dr. Loeb, and Miss Golder.
Myra Moreton was even more agitated than she had been when I left her
during the afternoon. In fact the secrecy maintained by both her family
and Dr. Goode, to say nothing of the presence of Dr. Loeb in the house
under arrest, had all but broken her down. She greeted Kennedy almost as
though he had been a life-long friend.

"I want you to look after Miss Moreton, Walter," he said in a low tone
as we three stood in the hall. "And you, Miss Moreton, I want to trust
me when I tell you I am going to bring you safely out of this thing. Be
a brave girl," he encouraged, taking her hand. "Remember that Mr.
Jameson and I are here solely in your interest."

"I know it," she murmured, her lip trembling. "I will try."

A moment later we entered the Moreton library. Dr. Loeb was glaring
impartially at everybody. I am sure that if he had been able to get at
any of his formidable electrical apparatus he would have made short work
of us "without cautery or knife." Darius Moreton was indignant, Lionel
supercilious, Dr. Goode silent.

Kennedy lost no time in getting down to the business that had brought
him out to Norwood, for this was not exactly a sociable gathering.

"Of course," he began, laying his leather case on the table and
unlocking, but not opening it, "references to cancer houses abound in
medical literature, but I think I am safe in saying that nothing has
been conclusively proved in favor either of the believers or the
skeptics. At least, it may be said to be an open question, with the
weight of opinion against it. Such physicians as Sir Thomas Oliver have
said that the evidence in favor is too strong to be ignored. Others,
equally brilliant, have shown why it should be ignored.

"In the absence of better proof--or rather in the presence of other
facts--perhaps, in this case, it would be better to see whether there is
not some other theory that may fit the facts better."

"Dr. Goode thought that the cancers might have been caused artificially
by X-rays or radium," I ventured.

Craig shook his head. "I have taken a piece of filter paper saturated
with a solution of potassium iodide, starch paste, and ferrosulphate and
laid it over a sample of blood, not four millimeters away. The whole I
have kept in the dark.

"Now, we know that blood gives off peroxide of hydrogen. Peroxide of
hydrogen is capable of attacking photographic plates. The paper can be
permeated by a gas. No, that was not a case of photo-activity observed
by Dr. Goode. It was the emission of gas from the blood that affected
the plates."

"But suppose that is the case," objected Dr. Goode hastily. "There are
the deaths from cancer. How do you explain them? It is not a cancer
house, you say. Is it mere chance?"

"Anyone may be pardoned for believing that cancer houses or even cancer
districts exist," reiterated Craig. "Indeed some observations seem to
show it, as I have said, though the opponents of the theory claim to
have found other causes. Here, as you hint, five people, living in close
association, have died in five years."

He paused and drew from the satchel the little porcelain cone which he
had picked up between the Moreton and Goode houses.

"I have here," he resumed, "what is known as a Berkefeld filter. Its
meshes let through none of the germs that we can see with a microscope.
It is bacteria-proof. Only something smaller than these things can pass
through it, something that we cannot see, a clear watery fluid. That
something in this case is a filterable virus."

Kennedy paused again, then went on, "Although the filterable viruses
have only recently come to attention, it is known that they are of very
diverse character. Here we have opened up the world of the infinitely
little--the universe that lies beyond the range of the microscope. The
study of these tiny particles is now one of the greatest objects in
scientific medicine.

"Are they living? It seems so, for a very little of the virus gives rise
to growths from which many others start. It may, of course, be chemical,
but it looks as if it were organic, since it resists cold, although not
heat, and can be destroyed by phenol, toluol, and other antiseptics.
Perhaps the virus may be visible, but not by any means yet known. Still,
we do know that these things which no eye can see may cause some of the
commonest diseases."

Kennedy paused. As usual he had his little audience following him
breathlessly. Even Dr. Loeb forgot to glower.

"In recent experiments with cancer in chickens," continued Craig, "tumor
material ground fine and treated in various ways has been filtered
through these filters. Cancers have been caused by this agent which has
passed through the filter.

"On the inside of the filter which I picked up back of this very house,
near the boundary of Dr. Goode's, I have found the giant cells of
cancer. On the outside was something which I have been able to develop
into a virus, these micro-organisms that belong to the ultra-invisible.
I do not pretend to know just how this bacteriological dwarf has been
used. But I know enough to say that someone has, without doubt, been
using some sort of filterable virus to induce cancers, just as the
experimenters at the Rockefeller Institute have done with animals.

"Naturally, in the Moreton family, this person found a fertile soil.
Perhaps he waited until he saw what looked like a favorable wound, or
traumatism. It is well-known that cancer often can be traced to a wound.
Perhaps he introduced this virus surreptitiously into a cut, now and
then. For, experiments show that the virus is strikingly dependent for
its action on the derangement of the tissues with which it is brought in
contact.

"This person must have had a high percentage of failures in his attempts
to inoculate the virus successfully. But by persistence and taking
advantage of every predisposition afforded by nature, he succeeded. At
any rate, this person must have been intimately acquainted with the
family, must have had some motive for seeking their deaths,--for
instance the family fortune.

"It makes no difference whether the victims might have had cancer sooner
or later, anyway. Even if that were so, this cold-blooded villain was at
least hastening the development, if not actually causing the frightful
and fatal disease."

Myra Moreton shuddered, and looked at Dr. Goode anxiously as Kennedy
proceeded. He seemed about to interrupt, but managed to check himself.
Craig reached over and picked out from the satchel the hat which we had
found on a desk at the office of the cancer quack.

"In the raid of Dr. Loeb's," he explained, changing tone, "a man
disappeared. I have here a soft hat which he left behind in his hurry to
escape, as well as some of the filters he was carrying."

He turned the hat inside out. "You will see," Craig pointed out, "that
on the felt of the inside there are numerous hairs, from the head of
the wearer."

I leaned forward, breathlessly. I began to see the part I had played in
building up his case.

"Human hair," he remarked, "differs greatly. Under the microscope one
may study the oval-shaped medulla, the long pointed cortex, and the flat
cuticle cells of an individual hair. The pigment in the cortex can be
studied also.

"I have taken some of the hairs from the inside of this hat, examined,
photographed, and measured them. I have compared them with a color scale
perfected by the late Alphonse Bertillon. In fact, in France quite a
science has been built up about hair by the so-called 'pilologists.' The
German scientific criminalists have written minute treaties on the hair
and astounding results have been obtained by them in detection.

"I have been able to secure samples of the hair of everyone in this case
and I have studied them also. These hairs in the hat which was left over
the package of filters have furnished me with a slender but no less
damning clew to a veritable monster."

One could have heard a pin drop, as if Kennedy were a judge pronouncing
a death sentence.

"Dr. Loeb is guilty of being one of the most heartless of quacks, it is
true," Kennedy's voice rang out tensely, as he faced us. "But the slow
murders, one by one, bringing the family estate nearer and nearer--they
were done by one who hoped to throw the blame on Dr. Loeb, by the man
whose hair I have here--Lionel Moreton."




CHAPTER XXXI

THE VOODOO MYSTERY


"Everybody's crazy, Kennedy. The whole world is going mad!"

Our old friend, Burke, of the Secret Service, scowled at the innocent
objects in Craig's laboratory as he mopped his broad forehead.

"And the Secret Service is as bad as the rest," he went on, still
scowling and not waiting for any comment from us. "Why, what with these
European spies and agitators, strikers and dynamiters, we're nearly
dippy. Here, in less than a week I've been shifted off war cases to
Mexico and now to Hayti. I don't mean that I've been away, of
course,--oh, no. You don't have to go to them. They come to us. Confound
it, New York is full of plots and counterplots. I tell you, Kennedy, the
whole world is crazy."

Craig listened with sympathy mixed with amusement. "Can I help you out?"
he asked.

"If you don't I'll be dippy, too," returned Burke with a whimsical
grimace.

"What's the trouble with Hayti, then?" encouraged Kennedy seriously.

"Trouble enough," answered Burke. "Why, here's that Caribbean
liner, _Haytien_, just in from Port au Prince. She's full of
refugees--government supporters and revolutionists--you never saw such a
menagerie since the ark."

I watched Burke keenly as he cut loose with his often picturesque
language. Somehow, it seemed rather fascinating to have the opera bouffe
side of the Black Republic presented to us. At least it was different
from anything we had had lately--and perhaps not at all opera bouffe,
either. Kennedy, at least, did not seem to think so, for although he was
very busy at the time, seemed prepared to lay aside his work to aid
Burke.

"You haven't heard about it yet," continued the Secret Service man, "but
on the _Haytien_ was a man--black of course--Guillaume Leon. He was a
friend of the United States--at least so he called himself, I
believe--wanted a new revolution down there, more American marines
landed to bolster up a new government that would clean things up, a new
deal all around."

Burke paused, then added by way of explanation of his own attitude in
the matter, "That may be all right, perhaps,--may be just what they need
down there, but we can't let people come here and plot revolutions like
that right in New York. They're sore enough at us without our letting
them think in Latin America that we're taking a hand in their troubles."

"Quite right," agreed Kennedy. "About Leon."

"Yes, Leon," resumed Burke, getting back to the subject. "Well, I was
told by the Chief of the Service to look out for this fellow. And I did.
I thought it would make a good beginning to go down the bay on a revenue
tug to meet the _Haytien_ at Quarantine. But, by Jingo, no sooner was I
over the side of the ship than what do you suppose I ran up against?"

He did not pause long enough to give us a guess, but shot out
dramatically, "Leon was dead--yes, dead!"

Kennedy and I had been interested up to this point. Now we were eager to
have him go on. "He died on the voyage up," continued Burke, "just after
passing the Gulf Stream, suddenly and from no apparent cause. At least
the ship's surgeon couldn't find any cause and neither could they down
at Quarantine. So after some time they let the ship proceed up the bay
and placed the whole thing in the hands of the Secret Service."

"Is there anyone you suspect?" I asked.

"Suspect?" repeated Burke. "I suspect them all. The _Haytien_ was full
of niggers--as superstitious as they make 'em. The ship's surgeon tells
me that after the body of Leon was discovered there was such a scene as
he had never witnessed. It was more like bedlam than a group of human
beings. Some were for putting the body over into the sea immediately.
Others threatened murder if it was done. Most of them didn't know what
it was they wanted. Then, there was a woman there. She seemed to be
nearly crazy--"

There came a knock at the laboratory door.

"If you'll just go into the next room with Walter," said Craig to Burke,
"I'll see you in a few minutes. Sit down, make yourself at home."

I went in with him and Burke dropped into a chair beside my typewriter.
The laboratory door opened. From where we were sitting we could see in a
mirror on the opposite wall that it was a girl, dark of skin, perhaps a
mulatto, but extremely beautiful, with great brown eyes and just a trace
of kinkiness in her black hair. But it was the worried, almost haunted,
look on her face that attracted one's attention most.

I happened to glance at Burke to see whether he had noticed it. I
thought his eyes would pop out of his head.

Just then Kennedy walked across the laboratory and closed our door.

"What's the matter?" I whispered.

But before Burke could reply, a draught opened the door just a bit. He
placed his finger on his lips. We could not close the door, and we sat
there in our corner unintentional but no less interested eavesdroppers.

"Mademoiselle Collette Aux Cayes is my name," she began, with a
strangely French accent which we could just understand. "I've heard of
you, Professor Kennedy, as a great detective."

"I should be glad to do what I can for you," he returned. "But you
mustn't expect too much. You seem to be in some great trouble."

"Trouble--yes," she replied excitedly. "My name isn't really Aux Cayes.
That is the name of my guardian, a friend of my father's. Both my father
and mother are dead--killed by a mob during an uprising several years
ago. I was in Paris at the time, being educated in a convent, or I
suppose I should have been killed, too."

She seemed to take it as a matter of course, from which I concluded that
she had been sent to Paris when she was very young and did not remember
her parents very well.

"At last the time came for me to go back to Hayti," she resumed. "There
is nothing that would interest you about that--except that after I got
back, in Port au Prince, I met a young lawyer--Guillaume Leon."

She hesitated and looked at Craig as though trying to read whether he
had ever heard the name before, but Kennedy betrayed nothing. There was
more than that in her tone, though. It was evident that Leon had been
more than a friend to her.

"Hayti has been so upset during the past months," she went on, "that my
guardian decided to go to New York, and of course I was taken along with
him. It happened that on the ship--the _Haytien_--Monsieur Leon went
also. It was very nice until--"

She came to a full stop. Kennedy encouraged her gently, knowing what she
was going to tell.

"One night, after we had been out some time," she resumed unexpectedly,
"I could not sleep and I went out on the deck to walk and watch the
moonlight. As I walked softly up and down, I heard voices, two men, in
the shadow of one of the cabins. They were talking and now and then I
could catch a word. It was about Guillaume. I heard them say that he was
plotting another revolution, that that was the reason he was going to
New York--not because he wanted to be on the boat with me. There was
something about money, too, although I couldn't get it very clearly. It
had to do with an American banking house, Forsythe & Co., I
think,--money that was to be paid to Guillaume to start an uprising. I
think they must have heard me, for I couldn't hear any more and they
moved off down the deck, so that I couldn't recognize them. You see, I
am not a revolutionist. My guardian belongs to the old order."

She stopped again, as though in doubt just how to go on. "Anyhow," she
continued finally, "I determined to tell Guillaume. It would have made
it harder for us--but it was he, not his politics, I loved." She was
almost crying as she blurted out, "But it was only the next day that he
was found dead in his stateroom. I never saw him alive after I overheard
that talk."

It was some moments before she had calmed herself so that she could go
on. "You know our people, Professor Kennedy," she resumed, choking back
her sobs. "Some said his dead body was like Jonah, and ought to be
thrown off to the sea. Then others didn't even want to have it touched,
said that it ought to be embalmed. And others didn't want that, either."

"What do you mean? Who were they?"

"Oh, there was one man,--Castine," she replied, hesitating over the
name, as though afraid even to mention it.

"He wanted it thrown overboard?" prompted Craig.

"N--no, he didn't want that, either," she replied. "He urged them not to
touch it--just to leave it alone."

She was very much frightened, evidently at her own temerity in coming to
Craig and saying so much. Yet something seemed to impel her to go on.

"Oh, Professor Kennedy," she exclaimed in a sudden burst of renewed
feeling, "don't you understand? I--I loved him--even after I found out
about the money and what he intended to do with it. I could not see his
dear body thrown in the ocean."

She shivered all over at the thought, and it was some time before she
said anything more. But Kennedy let her do as she pleased, as he often
did when deep emotion was wringing the secrets from people's hearts.

"He is dead!" she sobbed wildly. "Was he poisoned? Oh, can't you find
out? Can't you help me?"

Suddenly her voice in wild appeal sank almost to a hoarse whisper. "You
must not let anybody know that I came to you," she implored.

"Why not?"

"Oh--I--I am just afraid--that's all."

There was real fear in her tone and face now, fear for herself.

"Where is the body?" asked Kennedy, to get her mind off whatever hung
like an incubus over it.

"Down on the _Haytien_, at the pier, over in Brooklyn, still," she
replied. "They kept us all interned there. But my guardian had enough
influence to get off for a time and while he is arranging for quarters
for our stay after we are released, I slipped away to see you."

"You must go back to the boat?"

"Oh, yes. We agreed to go back."

"Then I shall be down immediately," Craig promised. "If you will go
ahead, I will see you there. Perhaps, at first you had better not
recognize me. I will contrive some way to meet you. Then they will not
know."

"Thank you," she murmured, as she rose to go, now in doubt whether she
had done the best thing to come to Craig, now glad that she had some
outside assistance in which she could trust.

He accompanied her to the door, bidding her keep up her courage, then
closed it, waiting until her footsteps down the hall had died away.

Then he opened our door and caught sight of Burke's face.

"That's strange, Burke," he began, before he realized what the
expression on his face meant. "There's a woman--what? You don't mean to
tell me that you knew her?"

"Why, yes," hastened Burke. "There was a rich old planter, Henri Aux
Cayes, aboard, too. She's his ward, Mademoiselle Collette."

"That's right," nodded Craig in surprise.

"She's the woman I was telling you about. She may be a little dark, but
she's a beauty, all right. I heard what she said. No wonder she was so
frantic, then."

"What do you know of the bankers, Forsythe & Co.?" asked Craig.

"Forsythe & Co.?" considered Burke. "Well, not much, perhaps. But for a
long time, I believe, they've been the bankers and promoters of defunct
Caribbean islands, reaping a rich harvest out of the troubles of those
decrepit governments, playing one against the other."

"H-m," mused Kennedy. "Can you go over to Brooklyn with me now?"

"Of course," agreed Burke, brightening up. "That was what I hoped you'd
do."

Kennedy and I were just about to leave the laboratory with Burke when an
idea seemed to occur to Craig. He excused himself and went back to a
cabinet where I saw him place a little vial and a hypodermic needle in
his vest pocket.




CHAPTER XXXII

THE FLUORISCINE TEST


Our trip over to the other borough was uneventful except for the
toilsome time we had to get to the docks where South and Central
American ships were moored. We boarded the _Haytien_ at last and Burke
led us along the deck toward a cabin. I looked about curiously. There
seemed to be the greatest air of suppressed excitement. Everyone was
talking, in French, too, which seemed strange to me in people of their
color. Yet everything seemed to be in whispers as if they were in fear.

We entered the cabin after our guide. There in the dim light lay the
body of Leon in a bunk. There were several people in the room, already,
among them the beautiful Mademoiselle Collette. She pretended not to
recognize Kennedy until we were introduced, but I fancied I saw her
start at finding him in company with Burke. Yet she did not exhibit
anything more than surprise, which was quite natural.

Burke turned the sheet down from the face of the figure in the bunk.
Leon had been a fine-looking specimen of his race, with good features,
strong, and well groomed. Kennedy bent over and examined the body
carefully.

"A very strange case," remarked the ship's surgeon, whom Burke beckoned
over a moment later.

"Quite," agreed Craig absently, as he drew the vial and the hypodermic
from his pocket, dipped the needle in and shot a dose of the stuff into
the side of the body.

"I can't find out that there is any definite cause of death," resumed
the surgeon.

Before Craig could reply someone else entered the darkened cabin. We
turned and saw Collette run over to him and take his hand.

"My guardian, Monsieur Aux Cayes," she introduced, then turned to him
with a voluble explanation of something in French.

Aux Cayes was a rather distinguished looking Haytian, darker than
Collette, but evidently of the better class and one who commanded
respect among the natives.

"It is quite extraordinary," he said with a marked accent, taking up the
surgeon's remark. "As for these people--" he threw out his hands in a
deprecating gesture--"one cannot blame them for being perplexed when
your doctors disagree."

Kennedy had covered up Leon's face again and Collette was crying softly.

"Don't, my dear child," soothed Aux Cayes, patting her shoulder gently.
"Please, try to calm thyself."

It was evident that he adored his beautiful ward and would have done
anything to relieve her grief. Kennedy evidently thought it best to
leave the two together, as Aux Cayes continued to talk to her in
diminutives and familiar phrases from the French.

"Were there any other people on the boat who might be worth watching?"
he asked as we rejoined Burke, who was looking about at the gaping
crowd.

Burke indicated a group. "Well, there was an old man, Castine, and the
woman he calls his wife," he replied. "They were the ones who really
kept the rest from throwing the body overboard."

"Oh, yes," assented Kennedy. "She told me about them. Are they here
now?"

Burke moved over to the group and beckoned someone aside toward us.
Castine was an old man with gray hair, and a beard which gave him quite
an appearance of wisdom, besides being a matter of distinction among
those who were beardless. With him was Madame Castine, much younger and
not unattractive for a negress.

"You knew Monsieur Leon well?" asked Kennedy.

"We knew him in Port au Prince, like everybody," replied Castine,
without committing himself to undue familiarity.

"Do you know of any enemies of his on the boat?" cut in Burke. "You were
present when they were demanding that his body be thrown over, were you
not? Who was foremost in that?"

Castine shrugged his shoulders in a deprecatory manner. "I do not speak
English very well," he replied. "It was only those who fear the dead."

There was evidently nothing to be gained by trying on him any of Burke's
third degree methods. He had always that refuge that he did not
understand very well.

I turned and saw that Collette and Aux Cayes had come out of the cabin
to the deck together, he holding her arm while she dabbed the tears away
from her wonderful eyes.

At the sight of us talking to Castine and the other woman, she seemed
to catch her breath. She did not speak to us, but I saw the two women
exchange a glance of appraisal, and I determined that "Madame" Castine
was at least worth observing.

By the attitude of the group from which we had drawn them, Castine, it
seemed, exercised some kind of influence over all, rich and poor,
revolutionist and government supporter.

The appearance of Collette occasioned a buzz of conversation and
glances, and it was only a moment before she retreated into the cabin
again. Apparently she did not wish to lose anything, as long as Kennedy
and Burke were about.

Kennedy did not seem to be so much interested in quizzing Castine just
yet, now that he had seen him, as he was in passing the time profitably
for a few minutes. He looked at his watch, snapped it back into his
pocket, and walked deliberately into the cabin again.

There he drew back the cover over Leon's face, bent over it, raised the
lids of the eyes, and gazed into them.

Collette, who had been standing near him, watching every motion, drew
back with an exclamation of horror and surprise.

"The voodoo sign is on him!" she cried. "It must be that!"

Almost in panic she fled, dragging her guardian with her.

I, too, looked. The man's eyes were actually green, now. What did it
mean?

"Burke," remarked Kennedy decisively, "I shall take the responsibility
of having the body transferred to my laboratory where I can observe it.
I'll leave you to attend to the formalities with the coroner. Then I
want you to get in touch with Forsythe & Co. Watch them without letting
them know you are doing so--and watch their visitors, particularly."

A private ambulance was called and, with much wagging of heads and
tongues, the body of Leon was carried on a stretcher, covered by a
sheet, down the gangplank and placed in it. We followed closely in a
taxicab, across the bridge and uptown.

For some days, I may say, Kennedy had been at work in his laboratory in
a little anteroom, where he was installing some new apparatus for which
he had received an appropriation from the trustees of the University.

It was a very complicated affair, one part of which seemed to be a
veritable room within the room. Into this chamber, as it were, he now
directed the men to carry Leon's body and lay it on a sort of bed or
pallet that was let down from the side wall of the compartment.

I had been quite mystified by the apparatus which Kennedy had set up,
but had had no opportunity to discuss it with him and he had been so
busy installing it that he had not taken time, often, for meals. In
fact, the only way I knew that he had finished was that when Burke had
called he had seemed interested in the call.

Outside the small chamber I have spoken of, in the room itself, were
several large pieces of machinery, huge cylinders with wheels and belts,
run by electric motors. No sooner had the body been placed in the little
chamber and the door carefully closed than Kennedy threw a switch,
setting the apparatus in motion.

"How could Leon have been killed?" I asked, as he rejoined me in the
outside laboratory. "What did Collette mean by her frightened cry of the
'voodoo sign'?"

The incident had made a marked impression on me and I had been unable
quite to arrive at any sensible explanation.

"Of course, you know that voodoo means literally anything that inspires
fear," remarked Kennedy after a moment's thought. "The god of voodoo is
the snake. I cannot say now what it was that she feared. But to see the
eyeballs turn green is uncanny, isn't it?"

"I should say so," I agreed. "But is that all?"

He shook his head. "No, I don't believe it is. Hayti is the hotbed of
voodoo worship. The cult has inaugurated a sort of priesthood--often a
priest and a priestess, called 'papaloi' and 'mammaloi'--papa and mamma,
probably with a corruption of the French word, 'roi,' king. They are, as
it were, heads of the community, father and mother, king and queen. Some
of the leading men of the communities in the islands of the Caribbean
are secret voodoists and leaders. Just what is going on under the
surface in this case, I cannot even hazard a guess. But there is some
deviltry afoot."

Just then the telephone rang and Craig answered it.

"It was from Burke," he said as he hung up the receiver. "Confidential
agents of his have been about. No one from the ship seems to have been
down to see Forsythe, but Forsythe has had people over at the ship.
Burke says someone is sending off great bunches of messages to
Hayti--he thinks the powerful wireless apparatus of the _Haytien_ is
being used."

For a moment Kennedy stood in the center of the laboratory, thinking.
Then he appeared to make up his mind to something.

"Has that taxicab gone?" he asked, opening a cabinet from which he took
several packages.

I looked out of the window. The ambulance had gone back, but the driver
of the car had evidently waited to call up his office for instructions.
I beckoned to him, and together Kennedy and I placed the packages in the
car.

Thus we were able quickly to get back again to the wharf where the
_Haytien_ was berthed. Instead of going aboard again, however, Kennedy
stopped just outside, where he was not observed and got out of the car,
dismissing it.

In the office of the steamship company, he sought one of the employés
and handed him a card, explaining that we were aiding Burke in the case.
The result of the parley was that Kennedy succeeded in getting to the
roof of the covered pier on the opposite side from that where the ship
lay.

There he set to work on a strange apparatus, wires from which ran up to
a flag pole on which he was constructing what looked like a hastily
improvised wireless aerial. That part arranged, Kennedy followed his
wires down again and took them in by a window to a sort of lumber-room
back of the office. Outside everyone was too busy to watch what we were
doing there and Craig could work uninterrupted.

"What are you doing?" I asked. "Installing a wireless plant?"

"Not quite," he smiled quietly. "This is a home-made wireless
photo-recording set. Of course, wireless aerials of amateurs don't hum
any more since war has caused the strict censorship of all wireless. But
there is no reason why one can't receive messages, even if they can't be
sent by everybody.

"This is a fairly easy and inexpensive means by which automatic records
can be taken. It involves no delicate instruments and the principal part
of it can be made in a few hours from materials that I have in my
laboratory. The basis is the capillary electrometer."

"Sounds very simple," I volunteered, trying not to be sarcastic.

"Well, here it is," he indicated, touching what looked like an ordinary
soft glass tube of perhaps a quarter of an inch diameter, bent U-shaped,
with one limb shorter than the other.

"It is filled nearly to the top of the shorter limb with chemically pure
mercury," he went on. "On the top of it, I have poured a little twenty
per cent sulphuric acid. Dipping into the acid is a small piece of
capillary tube drawn out to a very fine point at the lower end."

He filled the little tube with mercury also. "The point of this," he
observed, "is fine enough to prevent the mercury running through of its
own weight--about as fine as a hair."

He dipped the point and held it in the sulphuric acid and blew through
the capillary tube. When the mercury bubbled through the point in minute
drops, he stopped blowing. It drew back for a short distance by
capillary attraction and the acid followed it up.

"You can see that connections are made to the mercury in the arm and the
tube by short pieces of platinum wire," he continued. "It isn't
necessary to go into the theory of the instrument. But the most minute
difference of potential between the two masses of mercury will cause the
fine point at the junction of the liquids to move up and down.

"Connected to the aerial and the earth, with a crystal detector in
series, it is only a matter of applying an ordinary photo-recording
drum, and the machine is made."

He had been setting up a light-tight box, inside of which was a little
electric lamp. Opposite was a drum covered with bromide paper. He
started the clockwork going and after a few moments' careful
observation, we went away, and left the thing, trusting that no one was
the wiser.

Nothing further occurred that day, except for frequent reports from
Burke, who told us how his men were getting on in their shadowing of
Forsythe & Co. Apparently, the death of Leon had put a stop to
revolutionary plots, or at least had caused the plotters to change their
methods radically.

The time was shortening, too, during which Burke could keep the
passengers of the _Haytien_ under such close surveillance, and it was
finally decided that on the next morning they should be released, while
all those suspected were to be shadowed separately by Secret Service
agents, in the hope that once free they would commit some overt act that
might lead to a clew.




CHAPTER XXXIII

THE RESPIRATION CALORIMETER


It was early the next morning, about half an hour after the time set for
the release of the passengers, that our laboratory door was flung open
and Collette Aux Cayes rushed in, wildly excited.

"What's the matter?" asked Kennedy anxiously.

"Someone has been trying to keep me on the boat," she panted. "And all
the way over here a man has been following me."

Kennedy looked at her a minute calmly. We could understand why she might
have been shadowed, though it must have been a bungling job of Burke's
operative. But who could have wanted her kept on the boat?

"I don't know," she replied, in answer to Kennedy's question. "But
somehow I was the only one not told that we could go. And when I did go,
one of the Secret Service men stopped me."

"Are you sure it was a Secret Service man?"

"He said he was."

"Yes, but if he had been, he would not have done that, nor let you get
away, if he had. Can't you imagine anyone who might want you detained
longer?"

She looked at us, half frightened. "N--not unless it is that man--or the
woman with him," she replied, clasping her hands.

"You mean Castine?"

"Yes," she replied, avoiding the use of his name. "Ever since you had
the body removed, he has been in great fear. I have heard him ask fifty
times, 'Where have they taken him?' and 'Is he to be embalmed?'"

"That's strange," remarked Kennedy. "Why that anxiety from him? I
remember that it was he who wanted the body left alone. Is it for fear
that we might discover something which might be covered up?"

Kennedy disappeared into the anteroom and I heard him making a great
fuss as he regulated the various pieces of machinery that surrounded the
little chamber.

Some minutes later, he emerged.

"Meet us here in an hour," he directed Collette, "with your guardian."

Quickly Craig telephoned for a tank of oxygen to be sent over to the
laboratory, then got Burke on the wire and asked him to meet us down at
the dock.

We arrived first and Craig hurried into the lumber-room, where
fortunately he found everything undisturbed. He tore off the strip of
paper from the drum and held it up. On it was a series of marks, which
looked like dots and dashes, of a peculiar kind, along a sort of base
line. Carefully he ran his eye over the strip. Then he shoved it into
his pocket in great excitement.

"Hello," greeted Burke, as he came up puffing from the hurried trip over
from the Customs House, where his office was. "What's doing now?"

"A great deal, I think," returned Kennedy. "Can you locate Castine and
that woman and come up to the laboratory--right away?"

"I can put my finger on them in five minutes and be there in half an
hour," he returned, not pausing to inquire further, for, like me, Burke
had learned that Kennedy could not be hurried in any of his revelations.

Together, Craig and I returned to the laboratory to find that Collette
Aux Cayes was already there with her guardian, as solicitous as ever for
her comfort and breathing fire and slaughter against the miscreants who
had tried to detain her, without his knowledge.

Some minutes later Castine and "Madame" Castine arrived. At sight of
Collette she seemed both defiant and restless, as though sensing
trouble, I thought. Few words were spoken now by anyone, as Burke and I
completed the party.

"Will you be so kind as to step into the little anteroom with me?"
invited Craig, holding open the door for us.

We entered and he followed; then, as he led the way, stopped before a
little glass window in the compartment which I have described. Collette
was next to me. I could feel the tenseness of her senses as she gazed
through the window at the body on the shelf-like pallet inside.

"What is this thing?" asked Aux Cayes, as Collette drew back, and he
caught her by the arm.

For the moment Kennedy said nothing, but opened a carefully sealed door
and slid the pallet out, unhinging it, while I saw Castine trembling and
actually turning ashen about the lips.

"This," Kennedy replied at length, "is what is known as a respiration
calorimeter, which I have had constructed after the ideas of Professors
Atwater and Benedict of Wesleyan, with some improvements of my own. It
is used, as you may know, in studying food values, both by the
government and by other investigators. A man could live in that room for
ten or twelve days. My idea, however, was to make use of it for other
things than that for which it was intended."

He took a few steps over to the complicated apparatus which had so
mystified me, now at rest, as he turned a switch on opening the
carefully sealed door.

"It is what is known as a closed circuit calorimeter," he went on. "For
instance, through this tube air leaves the chamber. Here is a blower. At
this point, the water in the air is absorbed by sulphuric acid. Next the
carbon dioxide is absorbed by soda lime. Here a little oxygen is
introduced to keep the composition normal and at this point the air is
returned to the chamber."

He traced the circuit as he spoke, then paused and remarked, "Thus, you
see, it is possible to measure the carbon dioxide and the other
respiration products. As for heat, the walls are constructed so that the
gain or loss of heat in the chamber is prevented. Heat cannot escape in
any other way than that provided for carrying it off and measuring it.
Any heat is collected by this stream of water which keeps the
temperature constant and in that way we can measure any energy that is
given off. The walls are of concentric shells of copper and zinc with
two of wood, between which is 'dead air,' an effective heat insulator.
In other words," he concluded, "it is like a huge thermos bottle."

It was all very weird and fascinating. But what he could have been
doing with a dead body, I could not imagine. Was there some subtle,
unknown poison which had hitherto baffled science, but which now he was
about to reveal to us?

He seemed to be in no hurry to overcome the psychological effect his
words had on his auditors, for as he picked up and glanced at a number
of sheets of figures, he went on: "In the case of live persons, there is
a food aperture here, a little window with air locks arranged for the
passage of food and drink. That large window through which you looked
admits light. There is also a telephone. Everything is arranged so that
all that enters, no matter how minute, is weighed and measured. The same
is true of all that leaves. Nothing is too small to take into account."

He shook the sheaf of papers before us. "Here I have some records which
have been made by myself, and, in my absence, by one of my students. In
them the most surprising thing that I have discovered is that in the
body of Leon metabolism seems still to be going on."

I listened to him in utter amazement, wondering toward what his argument
was tending.

"I got my first clew from an injection of fluoriscine," he resumed. "You
know there are many people who have a horror of being buried alive. It
is a favorite theme of the creepy-creep writers. As you know, the heart
may stop beating, but that does not necessarily mean that the person is
dead. There are on record innumerable cases where the use of stimulants
has started again the beating of a heart that has stopped.

"Still, burial alive is hardly likely among civilized people, for the
simple reason that the practice of embalming makes death practically
certain. At once, when I heard that there had been objections to the
embalming of this body, I began to wonder why they had been made.

"Then it occurred to me that one certain proof of death was the absolute
cessation of circulation. You may not know, but scientists have devised
this fluoriscine test to take advantage of that. I injected about ten
grains. If there is any circulation, there should be an emerald green
discoloration of the cornea of the eye. If not, the eye should remain
perfectly white.

"I tried the test. The green eye-ball gave me a hint. Then I decided to
make sure with a respiration calorimeter that would measure whatever
heat, what breath, no matter how minute they were."

Collette gave a start as she began to realize vaguely what Craig was
driving at.

"It was not the voodoo sign, Mademoiselle," he said, turning to her. "It
was a sign, however, of something that suggested at once to me the
connection of voodoo practices."

There was something so uncanny about it that my own heart almost skipped
beating, while Burke, by my other side, muttered something which was not
meant to be profane.

Collette was now trembling violently and I took her arm so that if she
should faint she would not fall either on my side or on that of her
guardian, who seemed himself on the verge of keeling over. Castine was
mumbling. Only his wife seemed to retain her defiance.

"The skill of the voodoo priests in the concoction of strange draughts
from the native herbs of Hayti is well known," Kennedy began again.
"There are among them fast and slow poisons, poisons that will kill
almost instantly and others that are guaged in strength to accumulate
and resemble wasting away and slow death.

"I know that in all such communities today no one will admit that there
is such a thing still as the human sacrifice, 'the lamb without horns.'
But there is on record a case where a servant was supposed to have died.
The master ordered the burial, and it took place. But the grave was
robbed. Later the victim was resuscitated and sacrificed.

"Most uncanny of the poisons is that which will cause the victim to pass
into an unconscious condition so profound that it may easily be mistaken
for death. It is almost cataleptic. Such is the case here. My
respiration calorimeter shows that from that body there are still coming
the products of respiration, that there is still heat in it. It must
have been that peculiar poison of the voodoo priests that was used."

Racing on now, not giving any of us a chance even to think of the weird
thing, except to shudder instinctively, Kennedy drew from his pocket and
slapped down on a table the photographic records that had been taken by
his home-made wireless recording apparatus.

"From Mr. Burke," he said, as he did so, "I received the hint that many
messages were being transmitted by wireless, secretly perhaps, from the
_Haytien_. I wanted to read those messages that were being flashed so
quietly and secretly through the air. How could it be done? I managed
to install down at the dock an apparatus known as the capillary
electrometer. By the use of this almost unimaginably delicate instrument
I was able to drag down literally out of the air the secrets that seemed
so well hidden from all except those for whom they were intended.
Listen."

He took the roll of paper from the drum and ran his finger along it
hastily, translating to himself the Morse code as he passed from one
point to another.

"Here," cried Craig excitedly. "'Leon out of way for time safely.
Revolution suppressed before Forsythe can make other arrangements.
Conspiracy frustrated.' Just a moment. Here's another. 'Have engaged
bridal suite at Hotel La Coste. Communicate with me there after
tomorrow.'"

Still holding the wireless record, Kennedy swung about to Burke and
myself. "Burke, stand over by the door," he shouted. "Walter--that tank
of oxygen, please."

I dragged over the heavy tank which he had ordered as he adjusted a sort
of pulmotor breathing apparatus over Leon. Then I dropped back to my
place beside Collette, as the oxygen hissed out.

Castine was now on his knees, his aged arms outstretched.

"Before God, Mr. Kennedy--I didn't do it. I didn't give Leon the
poison!"

Kennedy, however, engrossed in what he was doing, paid no attention to
the appeal.

Suddenly I saw what might have been a faint tremor of an eyelid on the
pallid body before us.

I felt Collette spring forward from my side.

"He lives! He lives!" she cried, falling on her knees before the still
cataleptic form. "Guillaume!"

There was just a faint movement of the lips, as though as the man came
back from another world he would have called, "Collette!"

"Seize that man--it is his name signed to the wireless messages!"
shouted Kennedy, extending his accusing forefinger at Aux Cayes, who had
plotted so devilishly to use his voodoo knowledge both to suppress the
revolution and at the same time to win his beautiful ward for himself
from her real lover.




CHAPTER XXXIV

THE EVIL EYE


"You don't know the woman who is causing the trouble. You haven't seen
her eyes. But--Madre de Dios!--my father is a changed man. Sometimes I
think he is--what you call--mad!"

Our visitor spoke in a hurried, nervous tone, with a marked foreign
accent which was not at all unpleasing. She was a young woman,
unmistakably beautiful, of the dark Spanish type and apparently a South
American.

"I am Señorita Inez de Mendoza of Lima, Peru," she introduced herself,
as she leaned forward in her chair in a high state of overwrought
excitement. "We have been in this country only a short time--my father
and I, with his partner in a mining venture, Mr. Lockwood. Since the hot
weather came we have been staying at the Beach Inn at Atlantic Beach."

She paused a moment and hesitated, as though in this strange land of the
north she had no idea of which way to turn for help.

"Perhaps I should have gone to see a doctor about him," she considered,
doubtfully; then her emotions got the better of her and she went on
passionately, "but, Mr. Kennedy it is not a case for a doctor. It is a
case for a detective--for someone who is more than a detective."

She spoke pleadingly now, in a soft musical voice that was far more
pleasing to the ear than that of the usual Spanish-American. I had heard
that the women of Lima were famed for their beauty and melodious voices.
Señorita Mendoza surely upheld their reputation.

There was an appealing look in her soft brown eyes and her thin,
delicate lips trembled as she hurried on with her strange story.

"I never saw my father in such a state before," she murmured. "All he
talks about is the 'big fish'--whatever that may mean--and the curse of
Mansiche. At times his eyes are staring wide open. Sometimes I think he
has a violent fever. He is excited--and seems to be wasting away. He
seems to see strange visions and hear voices. Yet I think he is worse
when he is quiet in a dark room alone than when he is down in the lobby
of the hotel in the midst of the crowd."

A sudden flash of fire seemed to light up her dark eyes. "There is a
woman at the hotel, too," she went on, "a woman from Truxillo, Señora de
Moche. Ever since she has been there my father has been growing worse
and worse."

"Who is this Señora de Moche?" asked Kennedy, studying the Señorita as
if she were under a lens.

"A Peruvian of an old Indian family," she replied. "She has come to New
York with her son, Alfonso, who is studying at the University here. I
knew him in Peru," she added, as if by way of confession, "when he was a
student at the University of Lima."

There was something in both her tone and her manner that would lead one
to believe that she bore no enmity toward the son--indeed quite the
contrary--whatever might be her feelings toward the mother of de Moche.

Kennedy reached for our university catalogue and found the name, Alfonso
de Moche, a post-graduate student in the School of Engineering, and
therefore not in any of Kennedy's own courses. I could see that Craig
was growing more and more interested.

"And you think," he queried, "that in some way this woman is connected
with the strange change that has taken place in your father?"

"I don't know," she temporized, but the tone of her answer was
sufficient to convey the impression that in her heart she did suspect
something, she knew not what.

"It's not a long run to Atlantic Beach," considered Kennedy. "I have one
or two things that I must finish up first, however."

"Then you will come down tonight?" she asked, as Kennedy rose and took
the little white silk gloved hand which she extended.

"Tonight surely," answered Craig, holding the door for her to pass out.

"Well," I said, when we were alone, "what is it--a romance or a crime?"

"Both, I think," he replied abstractedly, taking up the experiment which
the visit had interrupted.

"I think," he remarked late in the afternoon, as he threw off his
acid-stained smock, "that I will go over to the University library
before it closes and refresh my mind on some of those old Peruvian
antiquities and traditions. The big fish or _peje grande_, as I remember
it, was the name given by the natives to one of the greatest buried
treasures about the time of Pizarro's conquest. If I remember
correctly, Mansiche was the great cacique, or something of that
sort--the ruler in northern Peru at that time. He is said to have left a
curse on any native who ever divulged the whereabouts of the treasure
and the curse was also to fall on any Spaniard who might discover it."

For more than an hour Kennedy delved into the archeological lore in the
library. Then he rejoined me at the laboratory and after a hasty bite of
dinner we hurried down to the station.

That evening we stepped off the train at Atlantic Beach to make our way
to the Beach Inn. The resort was just springing into night life, as the
millions of incandescent lights flooded it with a radiance which we
could see reflected in the sky long before our train arrived. There was
something intoxicating about the combination of the bracing salt air and
the gay throngs seeking pleasure.

Instead of taking the hotel 'bus, Kennedy decided to stroll to the inn
along the boardwalk. We were just about to turn into the miniature park
which separated the inn from the walk when we noticed a wheel chair
coming in our direction. In it were a young man and a woman of
well-preserved middle age. They had evidently been enjoying the ocean
breeze after dinner, and the sound of music had drawn them back to the
hotel.

We entered the lobby of the inn just as the first number of the evening
concert by the orchestra was finishing. Kennedy stood at the desk for a
moment while Señorita Mendoza was being paged, and ran his eye over the
brilliant scene. In a minute the boy returned and led us through the
maze of wicker chairs to an alcove just off the hall which later in the
evening would be turned into a ballroom.

On a wide settee, the Señorita was talking with animation to a tall,
clean-cut young man in evening clothes, whose face bore the tan of a sun
much stronger than that at Atlantic Beach. He was unmistakably of the
type of American soldier of fortune. In a deep rocker before them sat a
heavy-set man whose piercing black eyes beetled forth from under bushy
eyebrows. He was rather distinguished looking, and his close-cropped
hair and mustache set him off as a man of affairs and consequence in his
own country.

As we approached, Señorita Mendoza rose quickly. I wondered how she was
going to get over the awkward situation of introducing us, for surely
she did not intend to let her father know that she was employing a
detective. She did it most cleverly, with a significant look at Kennedy
which he understood.

"Good-evening. I am delighted to see you," she greeted. Then, turning to
her father, she introduced Craig. "This is Professor Kennedy," she
explained, "whom I met at the reception of the Hispano-American Society.
You remember I told you he was so much interested in our Peruvian
ruins."

Don Luis's eyes seemed fairly to glitter with excitement. They were
prominent eyes, staring, and I could not help studying them.

"Then, Señor Kennedy," he exclaimed, "you know of our ruins of
Chan-Chan, of Chima--those wonderful places--and have heard the legend
of the _peje grande_?" His eyes, by that time, were almost starting from
their sockets, and I noticed that the pupils were dilated almost to the
size of the iris. "We must sit down," he went on, "and talk about Peru."

The soldier of fortune also had risen as we approached. In her soft
musical voice, the Señorita now interrupted her father.

"Professor Kennedy, let me introduce you to Mr. Lockwood, my father's
partner in a mining project which brings us to New York."

As Kennedy and I shook hands with the young mining engineer, I felt that
Lockwood was something more to her than a mere partner in her father's
mining venture.

We drew up chairs and joined the circle.

Kennedy said something about mining and the very word "mine" seemed to
excite Señor Mendoza still further.

"Your American financiers have lost millions in mining in Peru," he
exclaimed excitedly, taking out a beautifully chased gold cigarette
case, "but we are going to make more millions than they ever dreamed of,
because we are simply going to mine for the products of centuries of
labor already done, for the great treasure of Truxillo."

He opened the cigarette case and handed it about. The cigarettes seemed
to be his own special brand. We lighted up and puffed away for a moment.
There was a peculiar taste about them, however, which I did not like. In
fact, I think that the Latin-American cigarettes do not seem to appeal
to an American very much, anyhow.

As we talked, I noticed that Kennedy evidently shared my own tastes, for
he allowed his cigarette to go out, and after a puff or two I did the
same. For the sake of my own comfort I drew out one of my own
cigarettes as soon as I could do so politely.

"We are not the only ones who have sought the _peje grande_," resumed
Mendoza eagerly, "but we are the only ones who are seeking it in the
right place, and," he added, leaning over with a whisper, "I am the only
one who has the concession, the monopoly, from the government to seek in
what we know to be the right place. Others have found the little fish.
We shall find the big fish."

He had raised his voice from the whisper and I caught the Señorita
looking anxiously at Kennedy, as much as to say, "You see? His mind is
full of only one subject."

Señor Mendoza's eyes had wandered from us and he seemed all of a sudden
to grow wild.

"We shall find it," he cried, "no matter what obstacles man or devil put
in our way. It is ours--for a simple piece of engineering--ours! The
curse of Mansiche--pouf!"

He snapped his fingers almost defiantly as he said it in a high-pitched
voice. There was an air of bravado about it and I could not help feeling
that perhaps in his heart he was not so sure of himself as he would have
others think. It was as though some diabolical force had taken
possession of his brain and he fought it off.

Kennedy quickly followed the staring glance of Mendoza. Out on the broad
veranda, by an open window a few yards from us, sat the woman of the
wheel chair. The young man who accompanied her had his back toward us
for the moment, but she was looking fixedly in our direction, paying no
attention apparently to the music. She was a large woman, with dark
hair, and contrasting full red lips. Her face, in marked contradiction
to her Parisian costume and refined manners, had a slight copper
swarthiness about it.

But it was her eyes that arrested and held one's attention. Whether it
was in the eyes themselves or in the way that she used them, there could
be no mistake about the hypnotic power that their owner wielded. She saw
us looking at her, but it made no difference. Not for an instant did she
allow our gaze to distract her in the projection of their weird power
straight at Don Luis himself.

Don Luis, on his part, seemed fascinated.

He rose, and, for a moment, I thought that he was going over to speak to
her, as if drawn by that intangible attraction which Poe has so cleverly
expressed in his "Imp of the Perverse." Instead, in the midst of the
number which the orchestra was playing, he turned and, as though by a
superhuman effort, moved away among the guests out into the brighter
lights and gayety of the lobby.

I glanced up in time to see the anxious look on the Señorita's face
change momentarily into a flash of hatred toward the woman in the
window.

The young man turned just about that time, and there was no mistaking
the ardent glance he directed toward the fair Peruvian. I fancied that
her face softened a bit, too.

She resumed her normal composure as she said to Lockwood, "You will
excuse me, I know. Father is tired of the music. I think I will take him
for a turn down the boardwalk. If you can join us in our rooms in an
hour or so, may we see you!" she asked, with another significant glance
at Kennedy.

Craig had barely time to reply that we should be delighted before she
was gone. Evidently she did not dare let her father get very far out of
her sight.

We sat for a few moments smoking and chatting with Lockwood.

"What is the curse of Mansiche?" asked Kennedy at length.

"Oh, I don't know," returned Lockwood, impatiently flicking the ashes
from his cigar, as though such stories had no interest for the practical
mind of an engineer. "Some old superstition. I don't know much about the
story; but I do know that there is treasure in that great old Chimu
mound near Truxillo, and that Don Luis has got us the government
concession to bore into it, if we can only raise the capital to carry it
out."

Kennedy showed no disposition to leave the academic and become
interested in the thing from the financial standpoint, and the
conversation dragged.

"I beg pardon," apologized Lockwood at length, "but I have some very
important letters that I must get off before the mail closes. I'll see
you, I presume, when the Señorita and Don Luis come back?"

Kennedy nodded. In fact, I think he was rather glad of the opportunity
to look things over unhampered.




CHAPTER XXXV

THE BURIED TREASURE


Señora de Moche--for I had no doubt now that this was the Peruvian
Indian woman of whom Señorita Inez had spoken--seemed to lose interest
in us and in the concert the moment Don Luis went out. Her son also
seemed restive. He was a good-looking fellow, with high forehead, nose
slightly aquiline, chin and mouth firm, in fact the whole face refined
and intellectual, though tinged with melancholy.

We strolled down the wide veranda, and as we passed the woman and her
son I was conscious of that strange feeling (which psychologists tell
us, however, has no foundation) of being stared at from behind.

Kennedy turned suddenly and again we passed, just in time to catch in a
low tone from the young man, "Yes, I have seen him at the University.
Everyone knows that he--"

The rest was lost.

It was quite evident now that they thought we were interested in them.
There was, then, no use in our watching them further. Indeed, when we
turned again, we found that the Señora and Alfonso had risen, gone
through the long, open window inside, and were making their way slowly
to the elevator.

The door of the elevator had scarcely closed when Kennedy turned on his
heel and quickly made his way back to the alcove where we had been
sitting. Lying about on the ash tray on a little wicker table were
several of Mendoza's half-burned cigarettes. We sat down a moment and,
after a hasty glance around, Craig gathered them up and folded them in a
piece of paper.

Leisurely Kennedy strolled over to the desk, and, as guests in a summer
hotel will do, looked over the register. The Mendozas, father and
daughter, were registered in rooms 810 and 812, a suite on the eighth
floor. Lockwood was across the hall in 811.

Turning the pages, Kennedy paused, then nudged me. Señora de Moche and
Señor Alfonso de Moche were on the same floor in 839 and 841, just
around an "L" in the hall. The two parties must meet frequently not only
downstairs in the inn, but in the corridors and elevators.

Kennedy said nothing, but glanced at his watch. We had nearly
three-quarters of an hour to wait yet until our pretty client returned.

"There's no use in wasting time or in trying to conceal our identity,"
he said finally, drawing a card from his pocket and handing it to the
clerk. "Señora de Moche, please."

Much to my surprise, the Señora telephoned down that she would see us in
her own sitting-room, and I followed Kennedy into the elevator.

Alfonso was out and the Señora was alone.

"I hope that you will pardon me," began Craig with an elaborate
explanation, "but I have become interested in an opportunity to invest
in a Peruvian venture and they tell me at the office that you are a
Peruvian. I thought that perhaps you could advise me."

She looked at us keenly. I fancied that she detected the subterfuge, yet
she did not try to avoid us. On closer view, her eyes were really
remarkable--those of a woman endowed with an abundance of health and
energy--eyes that were full of what the old phrenologists used to call
amativeness, denoting a nature capable of intense passion, whether of
love or hate. Yet I confess that I could not find anything especially
abnormal about them, as I had about Mendoza's.

"I suppose you mean that scheme of Señor Mendoza and his friend, Mr.
Lockwood," she returned, speaking rapidly. "Let me tell you about it.
You may know that the Chimu tribes in the north were the wealthiest at
the time of the coming of the Spaniards. Well, they had a custom of
burying with their dead all their movable property. Sometimes a common
grave or _huaca_ was given to many. That would become a cache of
treasure.

"Back in the seventeenth century," she continued, leaning forward
eagerly as she talked, "a Spaniard opened a Chimu _huaca_ and found gold
that is said to have been worth a million dollars. An Indian told him of
it. After he had shown him the treasure, the Indian told the Spaniard
that he had given him only the little fish, the _peje chica_, but that
some day he would give him the big fish, the _peje grande_.

"The Indian died," she went on solemnly, flashing at Craig a glance from
her wonderful eyes. "He was poisoned by the other members of his tribe."
She paused, then flashed, "That is my tribe, my family."

She paused a moment. "The big fish is still a secret--or at least it
was until they got it from my brother, to whom the tradition had been
intrusted. They drove him crazy--until he talked. Then, after he had
told the secret, and lost his mind, he threw himself one day into Lake
Titicaca."

She stopped dramatically in her passionate out-pouring of the tragedies
that had followed the hidden treasure.

"I cannot tell you more than you probably already know," she resumed,
watching our faces intently. "You know, I suppose, that the treasure is
believed to be in a large mound, a tumulus I think you call it, visible
from our town of Truxillo. Many people have tried to open it, but the
mass of sand pours down on them and they have been discouraged. But
Señor Mendoza believes that he knows just where to bore and Mr. Lockwood
has a plan for a well-timbered tunnel which can be driven at the right
point."

She said it with a sort of quiet assurance that conveyed the impression
without her saying it that the venture was somehow doomed to failure,
that these desecrators were merely toying with fate. All through her
remarks one could feel that she suspected Mendoza of having been
responsible for the downfall and tragedy of her brother, who had
betrayed the age-old secret.

Her eyes assumed a far-away, dreamy look as she went on. "You must know
that we Peruvians have been so educated that we never explore ruins for
hidden treasure--not even if we have the knowledge of engineering to do
so."

Apparently she was thinking of her son and his studies at the
University. One could follow her thoughts as they flitted from him to
the beautiful girl with whom she had seen us.

"We are a peculiar race," she proceeded. "We seldom intermarry with
other races. We are as proud as Señor Mendoza, as proud of our unmixed
lineage as your 'belted earls.'"

She said it with a quiet dignity quite in contrast with the nervous,
hasty manner of Don Luis. There was no doubt that the race feeling cut
deep.

Kennedy had been following her closely and I could see that the cross
currents of superstition, avarice and race hatred in the case presented
a tangle that challenged him.

"Thank you," he murmured, rising. "You have told me quite enough to make
me think seriously before I join in any such undertaking."

She smiled enigmatically and we bowed ourselves out.

"A most baffling woman," was Craig's only comment as we rode down again
in the elevator to wait for the return of Don Luis and the Señorita.

Scarcely had their chair set them down at the inn than Alfonso seemed to
appear from nowhere. He had evidently been waiting in the shadow of the
porch for them.

We stood aside and watched the little drama. For a few minutes the
Señorita talked with him. One did not need to be told that she had a
deep regard for the young man. She wanted to see him, yet she did not
want to see him. Don Luis, on the contrary, seemed to become quite
restive and impatient again and to wish to cut the conversation short.

It was self-evident that Alfonso was deeply in love with Inez. I
wondered whether, after all, the trouble was that the proud old
Castilian Don Luis would never consent to the marriage of his daughter
to one of Indian blood? Was he afraid of a love forbidden by race
prejudice?

In any event, one could easily imagine the feelings of Alphonso toward
Lockwood, whom he saw carrying off the prize under his very eyes. As for
his mother, we had seen that the Peruvians of her caste were a proud old
race. Her son was the apple of her eye. Who were these to scorn her
race, her family?

It was a little more than an hour after our first meeting when the
party, including Lockwood, who had finished his letters, gathered again
up in the rooms of the Mendozas.

It was a delightful evening, even in spite of the tension on which we
were. We chatted about everything from archeology to Wall Street, until
I could well imagine how anyone possessed of an imagination susceptible
to the influence of mystery and tradition would succumb to the
glittering charm of the magic words, _peje chica_, and feel all the gold
hunter's enthusiasm when brought into the atmosphere of the _peje
grande_. Visions of hidden treasure seemed to throw a glamour over
everything.

Kennedy and the Señorita had moved over to a window, where they were
gazing out on the fairyland of Atlantic Beach spread out before them,
while Lockwood and Don Luis were eagerly quizzing me on the
possibilities of newspaper publicity.

"Oh, Professor Kennedy," I heard her say under her breath, "sometimes I
fear that it is the _mal de ojo_--the evil eye."

I did not catch Craig's answer, but I did catch time and again narrowly
observing Don Luis. Our host was smoking furiously now, and his eyes had
even more than before that peculiar, staring look. By the way his veins
stood out I could see that Mendoza's heart action must be rapid. He was
talking more and more wildly as he grew more excited. Even Lockwood
noticed it and, I thought, frowned.

Slowly the conviction was forced on me. The man was mad--raving mad!

"Really, I must get back to the city tonight," I overheard Craig say to
the Señorita as finally he turned from the window toward us.

Her face clouded, but she said nothing.

"If you could arrange to have us dine with you tomorrow night up here,
however," he added quickly in a whisper, "I think I might be prepared to
take some action."

"By all means," she replied eagerly, as though catching at anything that
promised aid.

On the late train back, I half dozed, wondering what had caused
Mendoza's evident madness. Was it a sort of auto-hypnotism? There was, I
knew, a form of illusion known as ophthalmophobia--fear of the eye. It
ranged from mere aversion at being gazed at, all the way to the
subjective development of real physical illness out of otherwise
trifling ailments. If not that, what object could there be for anyone to
cause such a condition? Might it be for the purpose of robbery? Or might
it be for revenge?

Back in the laboratory, Kennedy pulled out from a cabinet a peculiar
apparatus. It seemed to consist of a sort of triangular prism set with
its edge vertically on a rigid platform attached to a massive stand.

Next he lighted one of the cigarette stubs which he had carried away so
carefully. The smoke curled up between a powerful light and the peculiar
instrument, while Craig peered through a lens, manipulating the thing
with exhaustless patience and skill.

Finally he beckoned me over and I looked through, too. On a sort of fine
grating all I could see was a number of strange lines.

"That," he explained in answer to my unspoken question as I continued to
gaze, "is one of the latest forms of the spectroscope, known as the
interferometer, with delicately ruled gratings in which power to resolve
the straight close lines in the spectrum is carried to the limit of
possibility. A small watch is delicate, but it bears no comparison to
the delicacy of these detraction spectroscopes.

"Every substance, you know, is, when radiating light, characterized by
what at first appears to be almost a haphazard set of spectral lines
without relation to one another. But they are related by mathematical
laws and the apparent haphazard character is only the result of our lack
of knowledge of how to interpret the results."

He resumed his place at the eye-piece to check over his results.
"Walter," he said finally with a twinkle of the eye, "I wish you'd go
out and find me a cat."

"A cat?" I repeated.

"Yes--a cat--felis domesticus, if it sounds better that way, a plain
ordinary cat."

I jammed on my hat and, late as it was, sallied forth on this apparently
ridiculous mission.

Several belated passers-by and a policeman watched me as though I were a
house-breaker and I felt like a fool, but at last by perseverance and
tact I managed to capture a fairly good specimen of the species and
transported it in my arms to the laboratory without an undue number of
scratches.




CHAPTER XXXVI

THE WEED OF MADNESS


In my absence Craig had set to work on a peculiar apparatus, as though
he were distilling something from several of the other cigarette stubs.

I placed the cat in a basket and watched Craig until finally he seemed
to be rewarded for his patient labors. It was well along toward morning
when he obtained in a test-tube a few drops of a colorless, almost
odorless liquid.

I watched him curiously as he picked the cat out of the basket and held
it gently in his arms. With a dropper he sucked up a bit of the liquid
from the test-tube. Then he let a small drop fall into the eye of the
cat.

The cat blinked a moment and I bent over to observe it more closely. The
cat's eye seemed to enlarge, even under the light, as if it were the
proverbial cat's eye under a bed.

What did it mean? Was there such a thing as the drug of the evil eye?

"What have you found?" I queried.

"Something very much like the so-called 'weed of madness,' I think," he
replied slowly.

"The weed of madness?" I repeated.

"Yes, something like that Mexican toloache and the Hindu datura which
you must have heard about," he continued. "You know the jimson
weed--the Jamestown weed? It grows almost everywhere in the world, but
most thrivingly in the tropics. They are all related in some way, I
believe. The jimson weed on the Pacific coast of the Andes has large
white flowers which exhale a faint, repulsive odor. It is a harmless
looking plant with its thick tangle of leaves, a coarse green growth,
with trumpet-shaped flowers. But, to one who knows its properties, it is
quite too dangerously convenient.

"I think those cigarettes have been doped," he went on positively. "It
isn't toloache that was used. I think it must be some particularly
virulent variety of the jimson weed. Perhaps it is in the preparation of
the thing. The seeds of the stramonium, which is the same thing, contain
a higher percentage of poison than the leaves and flowers. Perhaps they
were used. I can't say."

He took a drop of the liquid he had isolated and added a drop of nitric
acid. Then he evaporated it by gentle heat and it left a residue which
was slightly yellow.

Next he took from the shelf over his table a bottle marked alcoholic
solution, potassium hydrate, and let a drop fall on it. Instantly the
residue became a beautiful purple, turning rapidly to violet, then to
dark red and finally disappeared.

"Stramonium all right," he nodded with satisfaction. "That was known as
Vitali's test. Yes, there was stramonium in those cigarettes--datura
stramonium--perhaps a trace of hyocyamino. They are all, like atropine,
mydriatic alkaloids, so-called from the effect on the eye. One
one-hundred-thousandth of a grain will affect the cat's eye. You saw how
it acted. It is more active than even atropine. Better yet, you
remember how Don Luis's eyes looked."

"How about the Señora?" I put in.

"Oh," he answered quickly, "her pupils were normal enough. Didn't you
notice that? This concentrated poison which has been used in Mendoza's
cigarettes does not kill, at least not outright. It is worse. Slowly it
accumulates in the system. It acts on the brain. Of all the dangers to
be met with in superstitious countries, these mydriatic alkaloids are
among the worst. They offer a chance for crimes of the most fiendish
nature--worse than the gun or the stiletto, and with little fear of
detection. It is the production of insanity!"

Horrible though the idea was I could not doubt it in the face of Craig's
investigations and what I had already seen. In fact, it was necessary
for me only to recall the peculiar sensations I myself had experienced
after smoking merely a few puffs of one of Mendoza's cigarettes in order
to be convinced of the possible effect of the insidious poison contained
in the many that he smoked.

It was almost dawn before Craig and I left the laboratory after his
discovery of the manner of the stramonium poisoning. I was thoroughly
tired, though not so much so that my dreams were not haunted by a
succession of baleful eyes peering at me from the darkness.

I slept late, but Kennedy was about early at the laboratory, verifying
his experiments and checking over his results, carefully endeavoring to
isolate any other of the closely related mydriatic alkaloids that might
be contained in the noxious fumes of the poisoned tobacco. Though he was
already convinced of what was going on, I knew that he considered it a
matter of considerable medico-legal importance to be exact, for if the
affair ever came to the stage of securing an indictment, the charge
could be sustained only by specific proof.

Early in the forenoon Kennedy left me alone in the laboratory and made a
trip downtown, where he visited a South American tobacco dealer and
placed a rush order for a couple of hundred cigarettes, duplicating in
shape and quality those which Señor Mendoza doza preferred, except,
however, the deadly drug which was in those he was smoking.

I had some writing to do and was busily engaged at my typewriter when I
suddenly became conscious of that feeling of being watched. Perhaps I
had heard a footstep outside and did not remember it, but at any rate I
had the feeling. I stopped tapping the keys suddenly and wheeled about
in my chair just in time to catch a glimpse of a face dodging back from
the window. I don't think that I would be prepared to swear just who it
was, but there was just enough that was familiar about the fleeting
glimpse of the eyes to make me feel uncomfortable.

I ran to the door, but it was too late. The intruder had disappeared.
Still, the more I thought about it, the more determined I was to verify
my suspicions, if possible. I put on my hat and walked over to the
registrar's office. Sure enough, Alfonso de Moche was registered in the
summer school as well as in the regular course. I was now fully
convinced that it was he who had been watching us.

Not satisfied, I determined to make further inquiries about the young
man. He had been at the University that morning, I learned from one of
his professors, and that convinced me more than ever that he had
employed at least a part of the time in spying on us. As I had expected,
the professor told me that he was an excellent student, though very
quiet and reserved. His mind seemed to run along the line of engineering
and mining, especially, and I could not help drawing the conclusion that
perhaps he, too, was infected by the furore for treasure hunting, in
spite of his Indian ancestry.

Nothing further occurred, however, during the day to excite suspicion
and Craig listened with interest, though without comment, when I related
what had happened. He divided his time during the rest of the day
between some experimental work of his own and fits of deep reverie in
which he was evidently trying to piece together the broken strands of
the strange story in which we were now concerned.

The package of cigarettes which he had ordered was delivered late in the
afternoon. Kennedy had already wrapped up a small package of a powder
and filled a small atomizer with some liquid. Stowing these things away
in his pockets as best he could, with a little vial which he shoved into
his waistcoat pocket, he announced that he was ready at last to take an
early train to Atlantic Beach.

We dined that night, as Craig had requested, with the Mendozas and
Lockwood up in the sitting-room of Don Luis's suite. It was a
delightfully situated room, overlooking the boardwalk and the ocean, and
the fresh wind that was wafted in from the water made it quite the equal
of a roof garden.

Dinner had been ordered but not served, when Craig maneuvered to get a
few minutes alone with Inez. Although I could not hear, I gathered that
he was outlining at least a part of his plans to her and seeking her
co-operation. She seemed to understand and approve, and I really believe
that the dinner was the first in a long time that the distracted girl
had really enjoyed.

While we were waiting for it, I suddenly became aware that she had
contrived to leave Kennedy and myself alone in the sitting-room for a
moment. It was evidently part of Craig's plan. Instantly he opened a
large case in which Mendoza kept cigarettes and hastily substituted for
those in it an equal number of the cigarettes which he had had made.

The dinner itself was more like a family party than a formal dinner, for
Kennedy, when he wanted to do so, had a way of ingratiating himself and
leading the conversation so that everyone was at his ease. Everything
progressed smoothly until we came to the coffee. The Señorita poured,
and as she raised the coffee pot Kennedy called our attention to a long
line of colliers just on the edge of the horizon, slowly making their
way up the coast.

I was sitting next to the Señorita, not particularly interested in
colliers at that moment. From a fold in her dress I saw her hastily draw
a little vial and pour a bit of yellowish, syrupy liquid into the cup
which she was preparing for her father.

I could not help looking at her quickly. She saw me, then raised her
finger to her lips with an explanatory glance at Kennedy, who was
keeping the others interested in colliers. Instantly I recognized the
little vial that Kennedy had shoved into his vest pocket.

More coffee and innumerable cigarettes followed. I did my best to aid in
the conversation, but my real interest was centered in Don Luis himself,
whom I could not help watching closely.

Was it a fact or was it merely imagination? He seemed quite different.
The pupils of his eyes did not seem to be quite so dilated as they had
been the night before. Even his heart action appeared to be more normal.
I think the Señorita noticed it, too.

Dinner over and darkness cutting off the magnificent sweep of ocean
view, Inez suggested that we go down to the concert, as had been their
custom. It was the first time that Kennedy had not seemed to fall in
with any of her suggestions, but I knew that that, too, must be part of
his preconcerted plan.

"If you will pardon us," he excused, "Mr. Jameson and I have some
friends over at Stillson Hall whom we have promised to run in to see. I
think this would be a good opportunity. We'll rejoin you--in the alcove
where we were last night, if possible."

No one objected. In fact I think Lockwood was rather glad to have a
chance to talk to Inez, for Kennedy had monopolized a great deal of her
attention.

We left them at the elevator, but instead of leaving the Inn Kennedy
edged his way around into the shadow of a doorway where we could watch.
Fortunately the Señorita managed to get the same settee in the corner
which we had occupied the night before.

A moment later I caught a glimpse of a familiar face at the long window
opening on the veranda. Señora de Moche and her son had drawn up
chairs, just outside.

They had not seen us and, as far as we knew, had no reason to suspect
that we were about. As we watched the two groups, I could not fail to
note that the change in Don Luis was really marked. There was none of
the wildness in his conversation, as there had been. Once he even met
the keen eye of the Señora, but it did not seem to have the effect it
had had on the previous occasion.

"What was it you had the Señorita drop into his coffee?" I asked Craig
under my breath.

"You saw that?" he smiled. "It was pilocarpine, jaborandi, a plant found
largely in Brazil, one of the antidotes for stramonium poisoning. It
doesn't work with everyone. But it seems to have done so with Mendoza.
Besides, the caffeine in the coffee probably aided the pilocarpine. Did
you notice how it contracted his pupils almost back to normal again?"

Kennedy did not take his eyes off the two groups as he talked. "I've got
at the case from a brand-new angle, I think," he added. "Unless I am
mistaken, when the criminal sees Don Luis getting better, it will mean
another attempt to substitute more cigarettes doped with that drug."

Satisfied so far with the play he was staging, Kennedy moved over to the
hotel desk, and after a quiet conference with the head clerk, found out
that the room next to the suite of the Mendozas was empty. The clerk
gave him several keys and with a last look at the Señora and her son, to
see whether they were getting restive, I followed Craig into the
elevator and we rode up to the eighth floor again.

The halls were deserted now and we entered the room next to the Mendozas
without being observed. It was a simple matter after that to open a
rather heavy door that communicated between the two suites.

Instead of switching on the light, Kennedy first looked about carefully
until he was assured that no one was there. Quickly he sprinkled on the
floor from the hall door to the table on which the case of cigarettes
lay some of the powder which I had seen him wrap up in the laboratory
before we left. Then with the atomizer he sprayed over it something that
had a pungent, familiar odor, walking backwards from the hall door as he
did so.

"Don't you want more light?" I asked, starting to cross to a window to
raise a shade to let the moonlight stream in.

"Don't walk on it, Walter," he whispered, pushing me back. "First I
sprinkled some powdered iodine and then ammonia enough to moisten it. It
evaporates quickly, leaving what I call my anti-burglar powder."

He had finished his work and now the evening wind was blowing away the
slight fumes that had risen. For a few moments he left the door into the
next room open to clear away the odor, then quietly closed it, but did
not lock it.

In the darkness we settled ourselves now for a vigil that was to last we
knew not how long. Neither of us spoke as we half crouched in the shadow
of the next room, listening.

Slowly the time passed. Would anyone take advantage of the opportunity
to tamper with that box of cigarettes on Mendoza's table? Who was it who
had conceived and executed this devilish plot? What was the purpose
back of it all?

Once or twice we heard the elevator door clang and waited expectantly,
but nothing happened. I began to wonder whether if someone had a
pass-key to the Mendoza suite we could hear them enter. The outside hall
was thickly carpeted and deadened every footfall if one exercised only
reasonable caution.

"Don't you think we might leave the door ajar a little?" I suggested
anxiously.

"Sh!" was Kennedy's only comment in the negative.

I glanced now and then at my watch and was surprised to see how early it
was. The minutes were surely leaden-footed.

In the darkness and silence I fell to reviewing the weird succession of
events which had filled the past two days. I am not by nature
superstitious, but in the darkness I could well imagine a staring
succession of eyes, beginning with the dilated pupils of Don Luis and
always ending with those remarkable piercing black eyes of the Indian
woman with the melancholy-visaged son.

Suddenly I heard in the next room what sounded like a series of little
explosions, as though someone were treading on match-heads.

"My burglar powder," muttered Craig in a hoarse whisper. "Every step,
even those of a mouse running across, sets it off!"

He rose quickly and threw open the door into the Mendoza suite. I sprang
through after him.

There, in the shadows, I saw a dark form, starting back in retreat. But
it was too late.

In the dim light of the little explosions, I caught a glimpse of a
face--the face of the person who had been craftily working on the
superstition of Don Luis, now that his influence had got from the
government the precious concession, working with the dread drug to drive
him insane and thus capture both Mendoza's share of the fortune as well
as his daughter, well knowing that suspicion would rest on the jealous
Indian woman with the wonderful eyes whose brother had already been
driven insane and whose son Inez Mendoza really loved better than
himself--the soldier of fortune, Lockwood.






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