“You went through the opening, did you not?”
“Sure. I wanted to see through that little window in the door.”
“There is no door,” declared Wing Toy. “That is a wall, at the other end. A wall, made to look like a door. The window is of glass that cannot be broken.”
“What’s the idea?”
The Chinaman walked across the room, opened a closet to reveal an electric switch on a panel.
He pulled the switch. A sheet of steel dropped like a curtain, closing the panel. Both Shargin and Elvers uttered an exclamation of surprise.
“That little tunnel,” explained Wing Toy, “goes also under the landing. But it is made easy to find. It is made to coax people to enter.
“When one person enters it, another person, in this closet, can make that person stay.”
“A trap!” exclaimed Moose.
“The Chinese look for secret places,” said Wing Toy solemnly. “Some of them have found this. They have gone in, because that little window has coaxed them. Never has one failed to go in. Never has one come out — by himself.”