Flash’s pulse quickened as he saw the man pause. Orris seemed to debate a moment, then with a shrug, he turned and walked out of the department.
“Now why did he hesitate?” thought Flash. “Perhaps he intended to try something and lost his nerve! It looks as if my scheme wasn’t so clever after all.”
Deciding to carry out the test for a few minutes longer, he remained in hiding. Scarcely had Orris’ footsteps died away when another sound reached his ears. Some other person was approaching from the opposite direction!
Softly, an inch at a time, the hall door swung open. Peering from behind the wirephoto cabinet, Flash could distinguish only the shadowy outline of a man.
The intruder stood motionless for a moment before gliding noiselessly toward the door of the darkroom. There he paused, and with his ear pressed to the panel, listened.
“Anyone inside?” he asked in a low tone.
Flash started, for he recognized the voice. His first impulse was to dart from his hiding place and accost the man, but he forced himself to wait. Proof he must have.
The man repeated his question. When there was no reply, he quietly pushed open the door. Flash became tense with anxiety. Suppose the fellow failed to walk against the cord? What if the flash bulb did not go off? Why was it taking so long?
Then suddenly he saw the flare of light and heard a muttered exclamation of fear. The door of the darkroom swung open and a man bolted out. But Flash was ready for him.
“Oh, no, you don’t!” he shouted. “I’ve got you this time!”