“This, I believe, is an admissible question,” said Aire. “Is the note a recent discovery of yours?”
“Found it an hour ago.”
“But surely you couldn’t have overlooked it in your previous search in Mr. Cosgrove’s room.”
“Right you are. But I didn’t discover this in Mr. Cosgrove’s room.”
“Oh?”
“No. It had been delivered.”
“Delivered? What the devil do you mean?” asked Crofts.
“It was put where Sir Brooke told Mr. Cosgrove to leave it.”
“In the mail!” I exclaimed, a great dawn rising in my brain. “Wait a moment, Superintendent. I’ll tell you where you found that paper!”
“Gumme, if you haven’t guessed it or something.”