Another person arrived and took the same path between the buildings.
The driver of the waiting cab alighted and stepped into the back of his vehicle. One might have seen him go in, he was scarcely visible when he came out. The only evidence of his departure was a blot that appeared momentarily beside the cab.
Another person entered the space between the warehouses. This man walked cautiously through the shadowless darkness.
Occasionally he looked behind him; but he saw nothing. How could he observe anything in a place where shadows were invisible?
The man entered a basement door. As the dim light from the room cast its rays upon the ground outside the door, a blotch appeared there.
But it was unnoticed. The door was closed.
OTHERS arrived for the meeting, feeling their way through the darkness of the basement. After all had gone in, the door that led to the little room opened gently, and a tall, shadowy form slipped into the antechamber.
It crossed the room, and listened at the door of the meeting room. It remained there — motionless.
After some minutes, the door to the meeting room was opened, and a hooded man stepped into the antechamber.
He was too late to detect the presence that was standing there; for when the knob of the door had turned, the strange, waiting figure moved away, and became a heavy shadow in the opposite corner of the room.