“I can ask everything I want in a single question.” French’s voice was friendly and matter of fact, though he watched the other intently. “Where did you get the twenty-pound note with which you paid for your trip to Annecy?”

Whymper started and the signs of uneasiness showed tenfold more strongly.

“Where did I get it?” he stammered, while French noted the admission his bluff had drawn. “Why, I couldn’t tell you. I had it for a considerable time. It probably came in my pay.”

“You get your pay in notes?” French’s voice was stern.

“Well, sometimes—that is, I may have got the note from my father. He makes me an allowance.” The young man twisted nervously in his chair and gave every sign of embarrassment. French, whose experience of statement makers was profound, said to himself: “The man’s lying.”

It did not occur to him that this thoroughly normal looking youth could be guilty of the Starvel Hollow crime, but it suddenly seemed possible that he might know something about it.

“I should like you to think carefully, Mr. Whymper. The matter is more serious than perhaps you realise. You handed Messrs. Cook a stolen twenty-pound note. I am not suggesting that you stole it or that you are in any way to blame for passing it. But you must tell me where you got it. You cannot expect me to believe that you don’t know. Twenty-pound notes are too uncommon for that.”

Rather to French’s surprise the young man began once more to show relief.

“But that’s what I must tell you, Inspector,” he declared, but he did not meet French’s eye, and again the other felt he was lying. “I have had that note for a long time and I don’t really remember how it came into my possession.”

“Now, Mr. Whymper, as a friend I should urge you to think again. I am not making any threats, but it may become very awkward for you if you persist in that statement. Think it over. I assure you it will be worth your while.”