Although the Lizard knew that there was no danger of detection, yet from long habit he moved through the plant of the International Machine Company with the noiselessness of a disembodied spirit. Occasionally, and just for the briefest instant, he flashed his lamp ahead of him, but though he had never been in the place before he found it scarcely necessary, so minute had been his instructions for reaching the office from the fifth basement window.
The room he sought was on the second floor, and the Lizard had mounted the steps from the basement to the first floor when he was brought to a sudden stop by a noise from the floor above him. The Lizard listened intently. No, he could not be mistaken. Too often had he heard a similar sound.
Some one was tiptoeing across the floor above. The Lizard was in the hallway close beside the stairs when he realized the footsteps were coming toward the stairway, and a moment later that they were cautiously descending. The Lizard flattened himself against the wall, and if he breathed his lungs gave forth no sound.
If one may interpret footsteps--and the Lizard, from the fund of a great experience, felt that he could--those descending the stairway from above him might have been described as nervous and repressed; for at least they gave the Lizard the impression of one who desired to flee in haste and yet dared not do so, for fear of attracting attention by the increased noise that greater speed might entail.
At least the Lizard knew that those were the footsteps of no watchman, but whether it be guardian of the law or fellow criminal the Lizard had no wish to be discovered. He wondered what had gone wrong with Murray's plans, and, suddenly imbued with the natural suspicion of the criminal, it occurred to him that the whole thing might be a frame-up to get him; and yet why Murray should wish to get him he could not imagine. He ran over in his mind a list all those who might feel enmity toward him, but among them all the Lizard could cast upon none who might have sufficient against him to warrant such an elaborate scheme of revenge.
The footsteps passed him and continued on toward the foot of the stairs where was the main entrance which opened upon the street. At the door the footsteps halted, and as the Lizard's eyes bored through the darkness in the direction of the other prowler the latter struck a match upon the panel of the door and lighted a cigarette, revealing his features momentarily but distinctly to the watcher in the shadow of the stairway. Then he opened the door and passed out into the night.
The Lizard, listening intently for a few moments to assure himself that there was no one else above, and that the man who had just departed was not returning, at last continued his way to the foot of the stairs, which he ascended to the second floor. Passing through the outer office, he paused a moment before the door to Compton's private office, and then silently turning the knob he gently pushed the door open and stepped into the room.
Beyond the threshold he halted and pressed the button of his flash-lamp.
For just an instant its faint rays illumined the interior of the room, and then darkness blotted out the scene. But whatever it was that the little flash-lamp had revealed was evidently in the nature of a surprise, and perhaps something of a shock, to the Lizard, for he drew back with a muttered oath, backed quietly out of the room, closed the door after him, and, moving much more swiftly than he had entered, retraced his steps to the fifth window on the alley, and was gone from the scene with whatever job he had contemplated unexecuted.
A half-hour later detective headquarters at the Central Station received an anonymous tip: "Send some one to the office of the International Machine Company, on the second floor of West Superior Street."
It was ten thirty when Jimmy reached the plant. He entered the front door with his own latchkey, pressed the button which lighted the stairway and the landing above, and, ascending, went straight to Mr. Compton's office, turned the knob, and opened the door, to find that the interior was dark.
"Strange," he thought, "that after sending for me the fellow didn't wait." As these thoughts passed through his mind he fumbled on the wall for the switch, and, finding it, flooded the office with light.
As he turned again toward the room he voiced a sudden exclamation of horror, for on the floor beside his desk lay the body of Mason Compton!
As Jimmy stepped quickly toward Compton's body and kneeled beside it a man tiptoed quietly up the front stairway, while another, having ascended from the rear, was crossing the outer office with equal stealth.
Jimmy felt of Compton's face and hands. They were warm. And then he placed his ear close against the man's breast, in order to see if he could detect the beating of the heart. He was in this position when he was startled by a gruff voice behind him.
"Put 'em up!" it admonished curtly, and Jimmy turned to see two men standing in the doorway with pistols leveled at him.