
coffee;
one at eight fifteen, the next at eight thirty. Two cups, however, would not
account for a missing pint.
Even granting that Tabor drank coffee at fifteen minute intervals, The
Shadow estimated that he would not have consumed a quart within an hour.
Calculating on his own, The Shadow figured that the coffee clue would show
that
Tabor had died at about quarter past nine.
Nevertheless, The Shadow made allowance for the possibility that Tabor
might have drunk two or three cups at one sitting. Like Weston, The Shadow was
willing to let the time element wait until after Professor Murkden had made
his
blood tests. Science - not speculation - offered the best solution to the
evasive time element that invariably marked the purple death.
While in the anteroom, The Shadow glanced at the spot where Cardona had
found the clipped chess problem. The fact that The Shadow looked over the
exact
spot where the clue had been found was new proof that the murderer of
Frederick
Tabor had experienced real luck to-night.
His search ended, The Shadow returned to the studio. He went up through
the skylight, closed it exactly as he had found it. In darkness, he began a
precarious course along the roof. Sleet had hardened into ice; moving along a
frozen slant, The Shadow held his position in uncanny manner. His fingers and
toes seemed to dig into a surface that offered no apparent security.
The Shadow reached a projection of the roof; swung from its icy edge.
This
time, his fingers could not keep their clutch, but despite their slip, The
Shadow gave himself an inward swing beneath the projection and landed on the
platform of an old fire escape. Gripping the sleet-crusted rail, he descended
toward a space at the rear of the building.
Usually, The Shadow moved with absolute silence. To-night, that proved
impossible. Steps in the fire tower were loose; The Shadow was forced to step
heavily upon them, in order to gain a footing. The Shadow paused when he
reached the hinged extension that formed the last six feet of the fire escape.
Listening, The Shadow was rewarded for his caution. He heard sounds that
were barely audible. Whispers that only his keen ears could have detected. No
patrolmen, these. There were lurkers in the darkness just below; enemies who
had somehow guessed the presence of The Shadow and had moved in during the
time
that he had been engaged in upstairs investigation.
Those foemen had heard the slight clangs from the fire escape. Trouble
might begin at any moment. The Shadow's position was a bad one; though the
steps of the fire escape were iron, they were openwork and offered no bulwark.
THE SHADOW did not hesitate. Rising on the rail beside him, he reached
high and gripped a step above his head. Forcibly, he clanked the step; then
the
next one below it. The sounds, this time, were accurate. They gave a distinct
token of the exact spots where they had occurred.
The clanks, however, did not tell the most important fact; namely, that
The Shadow was beneath the steps that clattered, not upon them. Stooping, The
Shadow swung across the level rail of the lowest platform, ready for a
six-foot
vault to the area below.
The Shadow was not an instant too soon. As his form swung from the rail,
revolvers barked upward; simultaneously, big flashlights clicked their glare.
The barrage that ripped the night came from half a dozen guns.
Bullets found nothingness. Flashlights were luckier. As thugs fired