"Good Heavens!" ejaculated Kirby—"I—I see it now. That unfortunate habit of walking in my sleep! What can you think of me?"
"Do you generally carry skeleton keys about with you when you walk in your sleep, Mr. Kirby?" asked the doctor pointedly.
"I—I really don't know how to explain," stammered Kirby. "These keys I found in my room on the morning after I was robbed. I took them with me, thinking they might be of use if I should lose my regular keys."
"Very ingeniously explained, upon my word!"
"It isn't possible, Dr. Thorp, that you really take me for a thief! I hope you have more confidence in me."
"Well, it really did occur to me that you were a professional burglar. Your last words which I overheard before intruding upon you seem to bear out that supposition."
"What were they?"
"'Is there some secret drawer that I have overlooked?' Perhaps you will do me the favor to explain them."
"I can't. They were spoken unconsciously, I assure you. This habit of walking in my sleep has got me into trouble several times before."