"Well?" said Scott, when he returned. "Any clues?"

"No."

"You thoroughly examined the scene of the robbery?"

"I looked under the bed."

"Under the bed? What's the good of that? Did you go over every inch of the strip of carpet leading to the chair with a magnifying-glass?"

"Hadn't got a magnifying-glass."

"Then you'd better buck up and get one, if you're going to be a detective. Do you think Sherlock Holmes ever moved a step without his? Not much. Well, anyhow. Did you find any foot-prints or tobacco-ash?"

"There was a jolly lot of dust about."

"Did you preserve a sample?"

"No."