“Why?”
The Chinaman pointed to a cord beside the switch. “When this is drawn,” he explained, “a gas will enter that closed tunnel. That gas will kill.”
“I get you!” exclaimed Moose. “You figure we can let The Shadow come in here, find the tunnel and go in — then some one in this closet—”
Wing Toy nodded. He indicated an opening in the carved door of the closet. It made a perfect peephole, so that a man hidden there could see what happened in the room.
“Who will be there?” asked Moose.
The Chinaman pointed to Garry Elvers.
“But if The Shadow knows we came in here,” objected Moose, “he’ll wonder why Garry hasn’t come out—”
“I shall take care of that,” said Wing Toy. He picked up a hat and overcoat from a taboret in the corner. Donning the garments, he pointed to the door.
The three men went through the right-angled passages until they came to the outer door. There, Wing Toy pressed a latch. They stepped out into the corridor.
The Mongolian guard, his hands nestled in his bosom, leaned forward to scan the faces of Moose Shargin and Garry Elvers, as though to make sure that they were the two men who had entered.