Dean bowed gravely, but didn't speak. He was not prepared to wish success to Peter Kirby, knowing what he did of him.
During the evening Dr. Thorp called at the house of Mr. Gunnison, but unaccompanied by his guest. Dean had heard meanwhile at whose house Kirby was staying, and he felt that he ought to drop a hint that would put the unsuspecting host on his guard. He finally decided that it was his duty to do so.
"May I speak with you a moment in private, Dr. Thorp?" he asked, as the guest arose to go.
"Certainly," answered the doctor, in some surprise.
Dean accompanied him into the hall.
"Do you know much of the gentleman who is staying at your house?" asked Dean.
"No; why do you ask?"
"Because I have reason to think that he is a professional thief."
"Good Heavens! What do you mean!"