"No, I'm not sure. The devil has many irons in the fire. So has Hutchins Burley. Most energetic gentlemen whether of the diabolic or the celestial brand can gobble up an astonishing number of miscellaneous jobs. For all I know, Hutchins may be the new Head Bolshevik Bomb Thrower; or he may be the old chief Agent Provocateur; or he may be merely somebody with a friend in Washington whose word can make Headquarters quail. It's a conundrum. A pretty, picture-puzzle, play-box conundrum, if you like. Still, a conundrum. And I'm heartily sick of conundrums. I'm done with them. I joined the Secret Service to become a detective, not a musical comedy magician."

"You don't mean to say you are going to resign?"

"I do. You have guessed my third item of news. As fast as a steamer can carry me, I mean to proceed to Washington, there to give my resignation and sundry pieces of my mind to the Chief in person."

"But keeping its agents in the dark is an old, cherished method of the Service, isn't it? Mr. Pryor, I feel sure you have another reason."

"I have. Item four: I'm being followed."

"Followed—I don't understand."

"I began to suspect something the moment I came to London. Well, I put my suspicions to the test yesterday. Before going out I folded a pair of trousers in a very particular way and left them on a chair. When I came back they had been refolded in a slightly different way."

"Did you question your landlady?"

"Yes. Naturally she denied that any stranger had entered, but her confusion was obvious. I quickly suggested that my tailor might have called, and she as quickly agreed that this was so. When, an hour later, I interviewed the tailor and he confirmed me in my belief that he had not been near the house, the inference was clear. I was being watched. And, mark you, Smilo, I have reason to believe that the watcher is one of our own colleagues."

"Lord, no!"