He Unlocked the Trap Door
Now the intruder very carefully draped the rug over the door in such a way that it would spread itself as before when the trap should be closed from below. Two minutes later Tom was alone in the office, which appeared exactly as it had before he was rendered unconscious. Yet there crouched in the vault a hidden spy whose purpose was as sinister as his appearance.
He Draped the Rug Over the Door
"Mist' Swift, Massa Tom ain' come back fum de office yit," announced Rad Sampson as he placed the elderly inventor's nightly glass of hot milk on the library table. "I wuz jest up t' his room to ax him suffin' an' he wuzn't dar."
"Well, I guess the boy is working a bit late tonight. But you sound a trifle anxious, Eradicate. Do you think anything is wrong?"
"Uh—Oh, no suh. No suh," mumbled the old Negro. "I jest wondered ef yo'd seen him. Good night, suh! Good night!"
"Massa Tom Ain' Back Fum de Office."
"Good night, Rad."