<h2>CHAPTER VII</h2>
<h3><i>The Trail Of The Beam</i></h3>
<p>If Jack Carlson was as innocent as he pretended to be, it was curious
that he should stop just outside the gate of the Weedham home, reach
into a bed of dwarf evergreens from which he took a long copper cylinder
which closely resembled a flashlight.</p>
<p>From his hiding place in the shadows, Kip Burland saw this move on the
part of Carlson. He then saw Carlson get into his car and drive away.
Burland hailed a passing cab, ordered the driver to keep Carlson's car
in sight.</p>
<p>Carlson drove down into the lower east side of town, parked his car in a
narrow street, and got out. Kip ordered his cab to pass Carlson's car.
Looking back through the rear window, he saw Carlson turn up a narrow
walk between two tenement buildings.</p>
<p>"Stop here," Kip ordered the cab driver. And as the taxi braked, he got
out, threw a bill to the driver, and ran up the street toward the place
where Carlson had disappeared.</p>
<p>In the dusky shadows between the two tenements, Burland watched Carlson
put something into a wooden milk box attached just outside what was
apparently someone's kitchen door. Then Kip had to duck back into a
darkened doorway as Carlson retraced his steps, and got back into his
car.</p>
<p>Kip had to make a choice quickly. Either he continued to follow Carlson
or he investigated the milk box which Carlson had mysteriously visited.
In as much as there was no taxi in sight, Kip decided on the latter
course. As soon as Carlson was out of sight, he left the doorway, went
up the walk between the two buildings, opened the milk box.</p>
<p>Inside the box he found the copper cylinder which he had seen Carlson
take from its hiding place outside the Weedham home. The thing resembled
a flashlight more closely than ever on close inspection. It was a little
longer than the usual three cell case, and there was a finely ground
lens at the end.</p>
<p>Around the outside of the case was a piece of paper, held in place by a
rubber band. Kip removed the rubber band, unrolled the paper, studied it
in match light. On the paper was penciled the name "Delancy" followed by
the words, "Second floor rear at end of fire escape, sixty-eight A
Seventh Avenue." At the bottom of the paper was that crude drawing, the
sign of the Eye.</p>
<p>Kip's pulse quickened. Could it be that Carlson was the Eye? Certain
here was a message which Carlson had delivered and which carried the
Eye's signature. And the flashlight device—Kip understood its
construction and purpose immediately. Inside the case was some sort of a
trigger mechanism operated by a button on the outside. The trigger
operated a narrow strip of film, perhaps eight millimeter film, on which
were photographed the messages which the Eye intended to send. This film
would be placed between the light globe and the lens, so that the
photographed message could be projected on any wall from a long
distance.</p>
<p>This was the device which had been used tonight at the Weedham home.
Someone on the outside, probably the lady with the green eyes, Vida
Gervais, had employed the light beam projected message. That warning
which seemed to have been intended for Carlson was probably no warning
at all. Perhaps the police had been keeping rather a sharp eye on
Carlson, and Carlson had decided to put himself in the clear by faking
that little scene at the Weedham's and pretending that the Eye intended
to kill Carlson.</p>
<p>"And that would be suicide, I'd be willing to bet my last dollar!" Kip
muttered grimly.</p>
<p>He replaced the light signal device in the milk box together with the
note which was attached to the copper case. He would await further
developments. Carlson was the Eye, he was certain. It was now the job of
the Black Hood to catch Carlson red-handed.</p>
<hr style="width: 45%;" />
<p>He left the narrow corridor between buildings to take up a post on the
other side of the street. He did not have to wait very long until a man
in the garb of a telegraph messenger came up the street. The messenger
looked both ways and finally turned up that sidewalk between the two
tenements. Even from where he stood, Kip Burland could hear the rattle
of the milk box top. A moment later, the messenger appeared. He was
carrying that self-same copper cased flashlight device.</p>
<p>It was a tangled trail that Kip Burland followed that night, shadowing
that man who wore a telegraph messenger's costume. From half a block
behind the man, Kip watched the messenger walk along side of the bleak
walls of Tombs prison. He saw the narrow ray of that signal beam reach
out and up to one of the narrow, barred windows. The Eye was signaling
to someone who was even now in the hands of the police!</p>
<p>The further he delved into the mystery of the whispering criminal known
as the Eye, the more intriguing it became. Who but a perverted genius
could have planned so completely, so thoroughly that not even prison
walls offered any sort of a barrier?</p>
<p>It was when the messenger crossed over to Seventh Avenue that Kip
Burland decided that this time he would be on the receiving end of that
message that traveled the light beam. He knew where the messenger was
heading. That paper banded to the flashlight device had carried a
Seventh Avenue address. Someone else was to receive one of the Eye's
little missives. A man by the name of Delancy, judging from the writing
on the note paper.</p>
<p>The name struck a responsive cord in Kip Burland's memory. It recalled
Ray Delancy, one of the most dangerous rob and kill men in the
business. Delancy would be the sort of a person valuable to the Eye.</p>
<hr style="width: 45%;" />
<p>In a murky alley off Seventh Avenue, Kip Burland paused for a few
precious moments. Quickly, he shed his outer garments, revealing beneath
the yellow silk tights, the wide belt, and the black athletic shorts
that identified the Black Hood. From the inter-lining in the back of his
suit coat, he took a flat folded package composed of his gauntlet
gloves, his black silk cape, and that combination mask and hood that
completed the costume. Shortly, Kip Burland had vanished, completely
over-shadowed by his famous alias—the Black Hood.</p>
<p>The Eye's messenger had been moving at a leisurely pace. In spite of the
delay his costume change had necessitated, Black Hood easily outstripped
the messenger, reached the Seventh Avenue address which had been noted
on that slip of paper attached to the signal device. This proved to be
an ancient red brick lodging house which would have made an excellent
hideout for a criminal.</p>
<p>There was a fire escape on the side of the building. Black Hood raised
his eyes to the second story, marked the window which was nearest the
fire escape at this point. This was the window mentioned in the Eye's
instructions. Just across the alley from this point, Black Hood spied a
wood telephone pole. He grinned. Nothing could be sweeter! He crossed to
the pole, leaped for the lowest climbing spike, driven into the wood
about eight feet from the ground, and drew himself upwards. At the
second climbing spike, he stopped. From this position he would be able
to see the upper part of the wall of the second floor room of the
building across the alley, and also the ceiling. He pulled his black
cape around him and waited.</p>
<p>It wasn't long before he heard the footsteps of the messenger crunching
along the alley. The man came to a stop within a few feet of the very
post to which Black Hood was clinging. He pointed the copper cased
flashlight device upward toward the dark window which Black Hood was
watching. The white ray stabbed out through the darkness, and Black Hood
could clearly see the brand of the Eye, projected on the ceiling of the
room across the alley.</p>
<p>The light beam lingered for a moment, then went out. The shadowy figure
of a man appeared at the window. A cigarette glowed in his lips. A
signal, Black Hood wondered? And then the figure in the window withdrew
and the light beam again shot up from below. This time the words of the
Eye's message were clearly projected onto the ceiling of the crimester's
hideout. Black Hood read:</p>
<p>"Delancy, come to headquarters at once."</p>
<p>And then the beam of light went out.</p>
<p>Black Hood altered his position slightly so that he clung to the pole
with one hand, his body poised for a leap. The faint rustle of the Black
Hood's cape caused the messenger on the ground to look up.</p>
<p>Black Hood knew that he had to act fast. That signaling device which the
messenger carried was an important piece of evidence. Jack Carlson's
finger prints would be on the case. That, together with the photo film
which carried the Eye's message and was enclosed in the trigger
mechanism of the novel projector, constituted evidence that would prove
that Jack Carlson was the Eye.</p>
<p>Black Hood sprang out from the pole, swooped down upon the messenger
like a huge black bat. The man turned to flee too late. Black Hood
caught him by the coat tails, dragged him back. The messenger turned,
grappled with Black Hood. Then followed one of those grim, silent
struggles, too deadly serious for oaths and threats. Rat this pawn of
the Eye may have been, but even a cornered rat will fight with the
courage of a lion.</p>
<p>Time after time the man tried to bash Black Hood's skull with the copper
cased signal device—tried once too often; for Black Hood's gauntlet
covered fingers closed like steel hooks upon the device. A twist, a
sudden jerk, and it was Black Hood who had the signal device now.</p>
<p>The copper cylinder gone, the messenger's courage seemed to have gone
with it. He turned, fled like a frightened rabbit up the alley and into
the avenue.</p>
<p>Again Black Hood was faced with one of two choices. He might follow the
messenger, might catch him, turn him over to the cops. But in all
probability, the messenger knew less about the identity of the Eye than
Black Hood knew. He was merely a tool in the hands of a master criminal.
And Black Hood was after that master criminal.</p>
<p>The second choice, and the one which he decided to take, was to follow
Delancy who had been given orders from the Eye to appear at the
headquarters of the mob immediately. And in as much as Black Hood had
not the slightest idea where the Eye had his headquarters, this was the
wisest course to pursue.</p>
<p>His heart beat high with hope as he waited in the alley for Delancy to
make his appearance. He felt that he was nearing the end of the case,
approaching the time when the Eye, that menace to the peace and safety
of all New York, could be placed behind prison bars. And when he had
proved that Jack Carlson was the Eye, Black Hood would clear himself of
the charge of murder!</p>
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