<SPAN name="startofbook"></SPAN>
<div class="bbox"><p>Transcriber's Note: These stories have introductions which end with
thought breaks, sometimes with a closing quotation mark from the
storyteller. When the storyteller continues the story after the thought
break, opening quotation marks are consistently omitted.</p>
<p>Remaining transcriber's notes are located at the end of the text.</p>
</div>
<div class="medskip"></div>
<div class="figcenter"> <ANTIMG src="images/onsecretservice-cover.jpg" width-obs="402" height-obs="600" alt="On Secret Service William Nelson Taft" title="Book cover" /></div>
<hr style="width: 65%;" />
<div class="figcenter"> <ANTIMG src="images/half-title.png" width-obs="400" height-obs="114" alt="Half-Title" title="On Secret Service" /></div>
<hr style="width: 65%;" />
<h1>ON SECRET SERVICE</h1>
<h3><i>Detective-Mystery Stories<br/> Based on Real Cases Solved<br/> By Government Agents</i></h3>
<h3>BY</h3>
<h2>WILLIAM NELSON TAFT</h2>
<div class="hugeskip"></div>
<div class="figcenter"> <ANTIMG src="images/titlepage.png" width-obs="157" height-obs="190" alt="" title="Logo" /></div>
<div class="hugeskip"></div>
<h4>HARPER & BROTHERS PUBLISHERS<br/>
NEW YORK AND LONDON</h4>
<hr style="width: 65%;" />
<h5><span class="smcap">On Secret Service</span></h5>
<h5>Copyright, 1921, by Harper & Brothers<br/>
Printed in the United States of America</h5>
<hr style="width: 65%;" />
<h2><SPAN name="CONTENTS" id="CONTENTS"></SPAN>CONTENTS</h2>
<div class="center">
<table border="0" cellpadding="2" cellspacing="0" summary="">
<tr><td align="right"> </td><td align="left"> </td><td align="right">PAGE</td></tr>
<tr><td align="right">I.</td><td align="left"><SPAN href="#I"><span class="smcap">A Flash in the Night</span></SPAN></td><td align="right">1</td></tr>
<tr><td align="right">II.</td><td align="left"><SPAN href="#II"><span class="smcap">The Mint Mystery</span></SPAN></td><td align="right">15</td></tr>
<tr><td align="right">III.</td><td align="left"><SPAN href="#III"><span class="smcap">The Ypiranga Case</span></SPAN></td><td align="right">28</td></tr>
<tr><td align="right">IV.</td><td align="left"><SPAN href="#IV"><span class="smcap">The Clue on Shelf 45</span></SPAN></td><td align="right">42</td></tr>
<tr><td align="right">V.</td><td align="left"><SPAN href="#V"><span class="smcap">Phyllis Dodge, Smuggler Extraordinary</span></SPAN></td><td align="right">57</td></tr>
<tr><td align="right">VI.</td><td align="left"><SPAN href="#VI"><span class="smcap">A Matter of Record</span></SPAN></td><td align="right">73</td></tr>
<tr><td align="right">VII.</td><td align="left"><SPAN href="#VII"><span class="smcap">The Secret Still</span></SPAN></td><td align="right">88</td></tr>
<tr><td align="right">VIII.</td><td align="left"><SPAN href="#VIII"><span class="smcap">The Taxicab Tangle</span></SPAN></td><td align="right">103</td></tr>
<tr><td align="right">IX.</td><td align="left"><SPAN href="#IX"><span class="smcap">A Match for the Government</span></SPAN></td><td align="right">118</td></tr>
<tr><td align="right">X.</td><td align="left"><SPAN href="#X"><span class="smcap">The Girl at the Switchboard</span></SPAN></td><td align="right">133</td></tr>
<tr><td align="right">XI.</td><td align="left"><SPAN href="#XI"><span class="smcap">"Lost—$100,000!"</span></SPAN></td><td align="right">149</td></tr>
<tr><td align="right">XII.</td><td align="left"><SPAN href="#XII"><span class="smcap">"The Double Code"</span></SPAN></td><td align="right">164</td></tr>
<tr><td align="right">XIII.</td><td align="left"><SPAN href="#XIII"><span class="smcap">The Trail of the White Mice</span></SPAN></td><td align="right">180</td></tr>
<tr><td align="right">XIV.</td><td align="left"><SPAN href="#XIV"><span class="smcap">Wah Lee and the Flower of Heaven</span></SPAN></td><td align="right">195</td></tr>
<tr><td align="right">XV.</td><td align="left"><SPAN href="#XV"><span class="smcap">The Man with Three Wives</span></SPAN></td><td align="right">210</td></tr>
<tr><td align="right">XVI.</td><td align="left"><SPAN href="#XVI"><span class="smcap">After Seven Years</span></SPAN></td><td align="right">225</td></tr>
<tr><td align="right">XVII.</td><td align="left"><SPAN href="#XVII"><span class="smcap">The Poison-pen Puzzle</span></SPAN></td><td align="right">239</td></tr>
<tr><td align="right">XVIII.</td><td align="left"><SPAN href="#XVIII"><span class="smcap">Thirty Thousand Yards of Silk</span></SPAN></td><td align="right">254</td></tr>
<tr><td align="right">XIX.</td><td align="left"><SPAN href="#XIX"><span class="smcap">The Clue in the Classified Column</span></SPAN></td><td align="right">268</td></tr>
<tr><td align="right">XX.</td><td align="left"><SPAN href="#XX"><span class="smcap">In the Shadow of the Capitol</span></SPAN></td><td align="right">283</td></tr>
<tr><td align="right">XXI.</td><td align="left"><SPAN href="#XXI"><span class="smcap">A Million-dollar Quarter</span></SPAN></td><td align="right">298</td></tr>
<tr><td align="right">XXII.</td><td align="left"><SPAN href="#XXII">"<span class="smcap">The Looting of the C. T. C.</span>"</SPAN></td><td align="right">313</td></tr>
<tr><td align="right">XXIII.</td><td align="left"><SPAN href="#XXIII"><span class="smcap">The Case of Mrs. Armitage</span></SPAN></td><td align="right">328</td></tr>
<tr><td align="right">XXIV.</td><td align="left"><SPAN href="#XXIV"><span class="smcap">Five Inches of Death</span></SPAN></td><td align="right">343</td></tr>
</table></div>
<hr style="width: 65%;" />
<p><span class="pagenum"><SPAN name="Page_1" id="Page_1">[1]</SPAN></span></p>
<h2><SPAN name="ON_SECRET_SERVICE" id="ON_SECRET_SERVICE"></SPAN>ON SECRET SERVICE</h2>
<hr style="width: 65%;" />
<h2><SPAN name="I" id="I"></SPAN>I</h2>
<h3>A FLASH IN THE NIGHT</h3>
<p>We were sitting in the lobby of the Willard, Bill Quinn and I, watching
the constant stream of politicians, pretty women, and petty office
seekers who drift constantly through the heart of Washington.</p>
<p>Suddenly, under his breath, I heard Quinn mutter, "Hello!" and,
following his eyes, I saw a trim, dapper, almost effeminate-looking chap
of about twenty-five strolling through Peacock Alley as if he didn't
have a care in the world.</p>
<p>"What's the matter?" I inquired. "Somebody who oughtn't to be here?"</p>
<p>"Not at all. He's got a perfect right to be anywhere he pleases, but I
didn't know he was home. Last time I heard of him he was in Seattle,
mixed up with those riots that Ole Hanson handled so well."</p>
<p>"Bolshevist?"</p>
<p>"Hardly," and Quinn smiled. "Don't you know Jimmy Callahan? Well, it's
scarcely the province of a Secret Service man to impress his face upon
everyone ... the secret wouldn't last long. No, Jimmy was working on the
other end of the Seattle affair. Trying to locate the men behind the
move—and I understand he did it<span class="pagenum"><SPAN name="Page_2" id="Page_2">[2]</SPAN></span> fairly well, too. But what else would
you expect from the man who solved that submarine tangle in Norfolk?"</p>
<p>Quinn must have read the look of interest in my face, for he continued,
almost without a pause: "Did you ever hear the inside of that case? One
of the most remarkable in the whole history of the Secret Service, and
that's saying a good deal. I don't suppose it would do any harm to spill
it, so let's move over there in a corner and I'll relate a few details
of a case where the second hand of a watch played a leading role."</p>
<hr style="width: 45%;" />
<p>The whole thing started back in the spring of 1918 [said Quinn, who held
down a soft berth in the Treasury Department as a reward for a game leg
obtained during a counterfeiting raid on Long Island].</p>
<p>Along about then, if you remember, the Germans let loose a lot of
boasting statements as to what they were going to do to American ships
and American shipping. Transports were going to be sunk, commerce
crippled and all that sort of thing. While not a word of it got into the
papers, there were a bunch of people right here in Washington who took
these threats seriously—for the Hun's most powerful weapon appeared to
be in his submarines, and if a fleet of them once got going off the
coast we'd lose a lot of valuable men and time landing them.</p>
<p>Then came the sinking of the <i>Carolina</i> and those other ships off the
Jersey coast. Altogether it looked like a warm summer.</p>
<p>One afternoon the Chief sent for Callahan, who'd just come back from
taking care of some job down on the border, and told him his troubles.</p>
<p>"Jimmy," said the Chief, "somebody on this side is giving those damn
Huns a whole lot of information that they haven't any business getting.
You know about<span class="pagenum"><SPAN name="Page_3" id="Page_3">[3]</SPAN></span> those boats they've sunk already, of course. They're
only small fry. What they're laying for is a transport, another
<i>Tuscania</i> that they can stab in the dark and make their getaway. The
point that's worrying us is that the U-boats must be getting their
information from some one over here. The sinking of the <i>Carolina</i>
proves that. No submarine, operating on general cruising orders, could
possibly have known when that ship was due or what course she was going
to take. Every precaution was taken at San Juan to keep her sailing a
secret, but of course you can't hide every detail of that kind. She got
out. Some one saw her, wired the information up the coast here and the
man we've got to nab tipped the U-boat off.</p>
<p>"Of course we could go at it from Porto Rico, but that would mean
wasting a whole lot more time than we can afford. It's not so much a
question of the other end of the cable as it is who transmitted the
message to the submarine—and how!</p>
<p>"It's your job to find out before they score a real hit."</p>
<p>Callahan, knowing the way things are handled in the little suite on the
west side of the Treasury Building, asked for the file containing the
available information and found it very meager indeed.</p>
<p>Details of the sinking of the <i>Carolina</i> were included, among them the
fact that the <i>U-37</i> had been waiting directly in the path of the
steamer, though the latter was using a course entirely different from
the one the New York and Porto Rico S. S. Company's boats generally
took. The evidence of a number of passengers was that the submarine
didn't appear a bit surprised at the size of her prey, but went about
the whole affair in a businesslike manner. The meat of the report was
contained in the final paragraph, stating that one of the German
officers had boasted that they "would get a lot more ships<span class="pagenum"><SPAN name="Page_4" id="Page_4">[4]</SPAN></span> in the same
way," adding, "Don't worry—we'll be notified when they are going to
sail."</p>
<p>Of course, Callahan reasoned, this might be simply a piece of Teutonic
bravado—but there was more than an even chance that it was the truth,
particularly when taken in conjunction with the sinking of the <i>Texel</i>
and the <i>Pinar del Rio</i> and the fact that the <i>Carolina's</i> course was so
accurately known.</p>
<p>But how in the name of Heaven had they gotten their information?</p>
<p>Callahan knew that the four principal ports of embarkation for
troops—Boston, New York, Norfolk, and Charleston—were shrouded in a
mantle of secrecy which it was almost impossible to penetrate. Some
months before, when he had been working on the case which grew out of
the disappearance of the plans of the battleship <i>Pennsylvania</i>, he had
had occasion to make a number of guarded inquiries in naval circles in
New York, and he recalled that it had been necessary not only to show
his badge, but to submit to the most searching scrutiny before he was
allowed to see the men he wished to reach. He therefore felt certain
that no outsider could have dug up the specific information in the short
space of time at their disposal.</p>
<p>But, arguing that it had been obtained, the way in which it had been
passed on to the U-boat also presented a puzzle.</p>
<p>Was there a secret submarine base on the coast?</p>
<p>Had some German, more daring than the rest, actually come ashore and
penetrated into the very lines of the Service?</p>
<p>Had he laid a plan whereby he could repeat this operation as often as
necessary?</p>
<p>Or did the answer lie in a concealed wireless, operating<span class="pagenum"><SPAN name="Page_5" id="Page_5">[5]</SPAN></span> upon
information supplied through underground channels?</p>
<p>These were only a few of the questions which raced through Callahan's
mind. The submarine base he dismissed as impracticable. He knew that the
<i>Thor</i>, the <i>Unita</i>, the <i>Macedonia</i>, and nine other vessels had, at the
beginning of the war, cleared from American ports under false papers
with the intention of supplying German warships with oil, coal, and
food. He also knew that, of the million and a half dollars' worth of
supplies, less than one-sixth had ever been transshipped. Therefore,
having failed so signally here, the Germans would hardly try the same
scheme again.</p>
<p>The rumor that German officers had actually come into New York, where
they were supposed to have been seen in a theater, was also rather
far-fetched. So the wireless theory seemed to be the most tenable. But
even a wireless cannot conceal its existence from the other stations
indefinitely. Of course, it was possible that it might be located on
some unfrequented part of the coast—but then how could the operator
obtain the information which he transmitted to the U-boat?</p>
<p>Callahan gave it up in despair—for that night. He was tired and he felt
that eight hours' sleep would do him more good than thrashing around
with a problem for which there appeared to be no solution; a problem
which, after all, he couldn't even be sure existed.</p>
<p>Maybe, he thought, drowsily, as he turned off the light—maybe the
German on the U-boat was only boasting, after all—or, maybe....</p>
<p>The first thing Jimmy did the next morning was to call upon the head of
the recently organized Intelligence Bureau of the War Department—not
the Intelligence Division which has charge of censorship and the
handling<span class="pagenum"><SPAN name="Page_6" id="Page_6">[6]</SPAN></span> of news, but the bureau which bears the same relation to the
army that the Secret Service does to the Treasury Department.</p>
<p>"From what ports are transports sailing within the next couple of
weeks?" he inquired of the officer in charge.</p>
<p>"From Boston, New York, Norfolk, and Charleston," was the reply—merely
confirming Callahan's previous belief. He had hoped that the ground
would be more limited, because he wanted to have the honor of solving
this problem by himself, and it was hardly possible for him to cover the
entire Atlantic Coast.</p>
<p>"Where's the biggest ship sailing from?" was his next question.</p>
<p>"There's one that clears Norfolk at daylight on Monday morning with
twelve thousand men aboard...."</p>
<p>"Norfolk?" interrupted Callahan. "I thought most of the big ones left
from New York or Boston."</p>
<p>"So they do, generally. But these men are from Virginia and North
Carolina. Therefore it's easier to ship them right out of Norfolk—saves
time and congestion of the railroads. As it happens, the ship they're
going on is one of the largest that will clear for ten days or more. All
of the other big ones are on the other side."</p>
<p>"Then," cut in Callahan, "if the Germans wanted to make a ten-strike
they'd lay for that boat?"</p>
<p>"They sure would—and one torpedo well placed would make the <i>Tuscania</i>
look like a Sunday-school picnic. But what's the idea? Got a tip that
the Huns are going to try to grab her?"</p>
<p>"No, not a tip," Callahan called back over his shoulder, for he was
already halfway out of the door; "just a hunch—and I'm going to play it
for all it's worth!"</p>
<p>The next morning, safely ensconced at the Monticello under the name of
"Robert P. Oliver, of Williamsport,<span class="pagenum"><SPAN name="Page_7" id="Page_7">[7]</SPAN></span> Pa." Callahan admitted to himself
that he was indeed working on nothing more than a "hunch," and not a
very well-defined one at that. The only point that appeared actually to
back up his theory that the information was coming from Norfolk was the
fact that the U-boat was known to be operating between New York and the
Virginia capes. New York itself was well guarded and the surrounding
country was continually patrolled by operatives of all kinds. It was the
logical point to watch, and therefore it would be much more difficult to
obtain and transmit information there than it would be in the vicinity
of Norfolk, where military and naval operations were not conducted on as
large a scale nor with as great an amount of secrecy.</p>
<p>Norfolk, Callahan found, was rather proud of her new-found glory. For
years she had basked in the social prestige of the Chamberlin, the
annual gathering of the Fleet at Hampton Roads and the military pomp and
ceremony attendant upon the operations of Fortress Monroe. But the war
had brought a new thrill. Norfolk was now one of the principal ports of
embarkation for the men going abroad. Norfolk had finally taken her rank
with New York and Boston—the rank to which her harbor entitled her.</p>
<p>Callahan reached Norfolk on Wednesday morning. The <i>America</i>, according
to the information he had received from the War Department, would clear
at daybreak Monday—but at noon on Saturday the Secret Service operative
had very little more knowledge than when he arrived. He had found that
there was a rumor to the effect that two U-boats were waiting off the
Capes for the transport, which, of course, would have the benefit of the
usual convoy.</p>
<p>"But," as one army officer phrased it, "what's the use<span class="pagenum"><SPAN name="Page_8" id="Page_8">[8]</SPAN></span> of a convoy if
they know just where you are? Germany would willingly lose a sub. or two
to get us, and, with the sea that's been running for the past ten days,
there'd be no hope of saving more than half the boys."</p>
<p>Spurred by the rapidity with which time was passing and the fact that he
sensed a thrill of danger—an intuition of impending peril—around the
<i>America</i>, Callahan spent the better part of Friday night and all
Saturday morning running down tips that proved to be groundless. A man
with a German name was reported to be working in secret upon some
invention in an isolated house on Willoughby Spit; a woman, concerning
whom little was known, had been seen frequently in the company of two
lieutenants slated to sail on the <i>America</i>; a house in Newport News
emitted strange "clacking" sounds at night.</p>
<p>But the alleged German proved to be a photographer of unassailable
loyalty, putting in extra hours trying to develop a new process of color
printing. The woman came from one of the oldest families in Richmond and
had known the two lieutenants for years. The house in Newport News
proved to be the residence of a young man who hoped some day to sell a
photoplay scenario, the irregular clacking noise being made by a
typewriter operated none too steadily.</p>
<p>"That's what happens to most of the 'clues' that people hand you,"
Callahan mused as he sat before his open window on Saturday evening,
with less than thirty-six hours left before the <i>America</i> was scheduled
to leave. "Some fellows have luck with them, but I'll be hanged if I
ever did. Here I'm working in the dark on a case that I'm not even
positive exists. That infernal submarine may be laying off Boston at
this minute, waiting for the ship that leaves there Tuesday. Maybe they
don't get any word from shore at all.... Maybe they just...."<span class="pagenum"><SPAN name="Page_9" id="Page_9">[9]</SPAN></span></p>
<p>But here he was brought up with a sudden jar that concentrated all his
mental faculties along an entirely different road.</p>
<p>Gazing out over the lights of the city, scarcely aware that he saw them,
his subconscious mind had been following for the past three minutes
something apparently usual, but in reality entirely out of the ordinary.</p>
<p>"By George!" he muttered, "I wonder...."</p>
<p>Then, taking his watch from his pocket, his eyes alternated between a
point several blocks distant—a point over the roofs of the houses—and
the second hand of his timepiece. Less than a minute elapsed before he
reached for a pencil and commenced to jot down dots and dashes on the
back of an envelope. When, a quarter of an hour later, he found that the
dashes had become monotonous—as he expected they would—he reached for
the telephone and asked to be connected with the private wire of the
Navy Department in Washington.</p>
<p>"Let me speak to Mr. Thurber at once," he directed. "Operative Callahan,
S. S., speaking.... Hello! that you, Thurber?... This is Callahan. I'm
in Norfolk and I want to know whether you can read this code. You can
figure it out if anybody can. Ready?... Dash, dash, dash, dot, dash,
dash, dot—" and he continued until he had repeated the entire series of
symbols that he had plucked out of the night.</p>
<p>"Sounds like a variation of the International Morse," came the comment
from the other end of the wire—from Thurber, librarian of the Navy
Department and one of the leading American authorities on code and
ciphers. "May take a little time to figure it out, but it doesn't look
difficult. Where can I reach you?"</p>
<p>"I'm at the Monticello—name of Robert P. Oliver. Put in a call for me
as soon as you see the light on it. I've<span class="pagenum"><SPAN name="Page_10" id="Page_10">[10]</SPAN></span> got something important to do
right now," and he hung up without another word.</p>
<p>A quick grab for his hat, a pat under his arm, to make sure that the
holster holding the automatic was in place, and Callahan was on his way
downstairs.</p>
<p>Once in the street, he quickened his pace and was soon gazing skyward at
the corner of two deserted thoroughfares not many blocks from the
Monticello. A few minutes' consultation with his watch confirmed his
impression that everything was right again and he commenced his search
for the night watchman.</p>
<p>"Who," he inquired of that individual, "has charge of the operation of
that phonograph sign on the roof?"</p>
<p>"Doan know fuh certain, suh, but Ah think it's operated by a man down
the street a piece. He's got charge of a bunch of them sort o' things.
Mighty funny kinder way to earn a livin', Ah calls it—flashing on an'
off all night long...."</p>
<p>"But where's he work from?" interrupted Callahan, fearful that the
negro's garrulousness might delay him unduly.</p>
<p>"Straight down this street three blocks, suh. Then turn one block to yo'
left and yo' cain't miss the place. Electrical Advertisin' Headquarters
they calls it. Thank you, suh," and Callahan was gone almost before the
watchman could grasp the fact that he held a five-dollar bill instead of
a dollar, as he thought.</p>
<p>It didn't take the Secret Service man long to locate the place he
sought, and on the top floor he found a dark, swarthy individual bending
over the complicated apparatus which operated a number of the electric
signs throughout the city. Before the other knew it, Callahan was in the
room—his back to the door and his automatic ready for action.<span class="pagenum"><SPAN name="Page_11" id="Page_11">[11]</SPAN></span></p>
<p>"Up with your hands!" snapped Callahan. "Higher! That's better. Now tell
me where you got that information you flashed out to sea to-night by
means of that phonograph sign up the street. Quick! I haven't any time
to waste."</p>
<p>"<i>Si, si, señor</i>," stammered the man who faced him. "But I understand
not the English very well."</p>
<p>"All right," countered Callahan. "Let's try it in Spanish," and he
repeated his demands in that language.</p>
<p>Volubly the Spaniard—or Mexican, as he later turned out to
be—maintained that he had received no information, nor had he
transmitted any. He claimed his only duty was to watch the "drums" which
operated the signs mechanically.</p>
<p>"No drum in the world could make that sign flash like it did to-night,"
Callahan cut in. "For more than fifteen minutes you sent a variation of
the Morse code seaward. Come on—I'll give you just one minute to tell
me, or I'll bend this gun over your head."</p>
<p>Before the minute had elapsed, the Mexican commenced his confession. He
had been paid a hundred dollars a week, he claimed, to flash a certain
series of signals every Saturday night, precisely at nine o'clock. The
message itself—a series of dots and dashes which he produced from his
pocket as evidence of his truthfulness—had reached him on Saturday
morning for the two preceding weeks. He didn't know what it meant. All
he did was to disconnect the drum which operated the sign and move the
switch himself. Payment for each week's work, he stated, was inclosed
with the next week's message. Where it came from he didn't know, but the
envelope was postmarked Washington.</p>
<p>With his revolver concealed in his coat pocket, but with its muzzle in
the small of the Mexican's back, Callahan<span class="pagenum"><SPAN name="Page_12" id="Page_12">[12]</SPAN></span> marched his captive back to
the hotel and up into his room. As he opened the door the telephone rang
out, and, ordering the other to stand with his face to the wall in a
corner—"and be damn sure not to make a move"—the government agent
answered the call. As he expected, it was Thurber.</p>
<p>"The code's a cinch," came the voice over the wire from Washington. "But
the message is infernally important. It's in German, and evidently you
picked it up about two sentences from the start. The part you gave me
states that the transport <i>America</i>, with twelve thousand men aboard,
will leave Norfolk at daylight Monday. The route the ship will take is
distinctly stated, as is the personnel of her convoy. Where'd you get
the message?"</p>
<p>"Flashes in the night," answered Callahan. "I noticed that an electric
sign wasn't behaving regularly—so I jotted down its signals and passed
them on to you. The next important point is whether the message is
complete enough for you to reconstruct the code. Have you got all the
letters?"</p>
<p>"Yes, every one of them."</p>
<p>"Then take down this message, put it into that dot-and-dash code and
send it to me by special messenger on one of the navy torpedo boats
to-night. It's a matter of life and death to thousands of men!" and
Callahan dictated three sentences over the wire. "Got that?" he
inquired. "Good! Get busy and hurry it down. I've got to have it in the
morning."</p>
<p>"Turn around," he directed the Mexican, as he replaced the receiver.
"Were you to send these messages only on Saturday night?"</p>
<p>"<i>Si, señor.</i> Save that I was told that there might be occasions when I
had to do the same thing on Sunday night, too."<span class="pagenum"><SPAN name="Page_13" id="Page_13">[13]</SPAN></span></p>
<p>"At nine o'clock?"</p>
<p>"<i>Si, señor.</i>"</p>
<p>Callahan smiled. Things were breaking better than he had dared hope. It
meant that the U-boat would be watching for the signal the following
night. Then, with proper emphasis of the automatic, he gave the Mexican
his orders. He was to return to his office with Callahan and go about
his business as usual, with the certainty that if he tried any
foolishness the revolver could act more quickly than he. Accompanied by
the government agent, he was to come back to the Monticello and spend
the night in Callahan's room, remaining there until the next evening
when he would—promptly at nine o'clock and under the direction of an
expert in telegraphy—send the message which Callahan would hand him.</p>
<p>That's practically all there is to the story.</p>
<hr style="width: 45%;" />
<p>"All?" I echoed, when Quinn paused. "What do you mean, 'all'? What was
the message Callahan sent? What happened to the Mexican? Who sent the
letter and the money from Washington?"</p>
<p>"Nothing much happened to the Mexican," replied my informant, with a
smile. "They found that he was telling the truth, so they just sent him
over the border with instructions not to show himself north of the Rio
Grande. As for the letter—that took the Post Office, the Department of
Justice, and the Secret Service the better part of three months to
trace. But they finally located the sender, two weeks after she (yes, it
was a woman, and a darned pretty one at that) had made her getaway. I
understand they got her in England and sentenced her to penal servitude
for some twenty years or more. In spite of the war, the Anglo-Saxon race
hasn't completely overcome its prejudice against the death penalty for
women."<span class="pagenum"><SPAN name="Page_14" id="Page_14">[14]</SPAN></span></p>
<p>"But the message Callahan sent?" I persisted.</p>
<p>"That was short and to the point. As I recall it, it ran something like
this: 'Urgent—Route of <i>America</i> changed. She clears at daylight, but
takes a course exactly ten miles south of one previously stated. Be
there."</p>
<p>"The U-boat was there, all right. But so were four hydroplanes and half
a dozen destroyers, all carrying the Stars and Stripes!"</p>
<hr style="width: 65%;" />
<p><span class="pagenum"><SPAN name="Page_15" id="Page_15">[15]</SPAN></span></p>
<div style="break-after:column;"></div><br />