Rusty holds out hand and Jarvis cautiously steps on trap door; it sinks and other end rises.
Where could a trap door, two thousand feet above the earth lead?
Then he saw a trap door in the floor, which led down to a kind of dark dungeon.
Throwing this aside, he unlocked the trap door and quietly raised it.
I cut out three sides neatly, and made a sort of trap door that hinged upon the uncut end.
Then he shut down the trap door, securely fastened it and departed.
The house was dark but, with the aid of a flashlight, the guide located a trap door under some loose straw.
In the trap door was a small knot hole, about an inch and a half in diameter.
They crawled through the trap door and out upon the stone-paved, airy crown of the tower.
I guess the old duffer has it in his pocket, the same as he has the key to the trap door.