"Oh, do tell us," Celia begged.
He shook his head. "I'm afraid I can't do that."
Charles reached out a hand for the marmalade. "Let it be clearly understood," he said, "that if you don't propose to gratify our curiosity, you've obtained that ham under false pretences. Kindly let us have the whole story."
"All right," Michael said. "How much did Tomlinson tell you?"
"Practically nothing. When he turned up last night I told him that I'd rung you up at the Bell, and found you out. Where were you, by the way?"
"Hidden in the cellar. Where did you ring up from?"
"Ackerley's place. He was out, but the butler let me in."
"I see," said Michael. "What time was it?"
"About midnight. Well, considering everything you'll hardly be surprised when I say that I regarded your absence as fishy in the extreme. The inspector seemed extraordinarily loth to do anything, and I rather lost patience. I threatened to go to the Bell, knock them up, and lie in wait for you. That upset old Tomlinson, and after a bit he took me aside and after swearing me to secrecy, told me who you were. That rather changed the complexion of things, of course. His point was that if you weren't at the Bell you were on the Monk's tracks. Who the Monk was, or what he was up to, he wouldn't tell me. The only thing he was worrying about was to keep me from giving the alarm and thus spoiling your game. He held that nothing could be done till you turned up. I agreed to give you till this morning to put in an appearance, and then you turned up. Now let's have your story."
"It's rather long," Michael said, "but I'll make it as brief as I can. It began four years ago. I wasn't on it then, of course, but about that time the French police discovered that there were a number of forged Banque de France notes circulating through the country. These notes were obviously the work of an absolute master, and it takes an expert all his time to detect them. Well, I won't go into all the early details, but it soon became apparent that whoever was responsible for the notes was a pretty cunning rogue who knew not only how to hide his tracks, but how to keep his staff in such dread of him that they'd go to gaol sooner than speak. About three years ago the French police got hold of one of the Monk's agents, but nothing they could threaten or promise had the slightest effect on him. He's serving his term now. The only thing he said from start to finish was that prison was better than what would certainly happen if he spoke."