"Where was the key?"
"In the door."
"Lock in order?"
"Yes."
"Well, then, how could it have been opened from the outside? There isn't a mark on the door, outside or in."
"As far as that goes, Mr. Batchgrew," said Rachel, "only last week the key fell out of the lock on the inside and slid down the brick floor to the outside—you know there's a slope. And I had to go out of the house by the front and the lamplighter climbed over the back gate for me and let me into the yard so that I could get the key again. That might have happened last night. Some one might have shaken the key out, and pulled it under the door with a bit of wire or something."
"That won't do," Thomas Batchgrew stopped her. "You said the key was in the door on the inside."
"Well, when they'd once opened the door from the outside, couldn't they have put the key on the inside again?"
"They? Who?"
"Burglars."