"You're offering me the sweetest chance for a double-cross that I ever heard of. I take your coaching, pass the exam, and forget about you. And you wouldn't be able to do a thing about it. How did you figure to keep tabs on me?"

"I hadn't. No one with your Ashby looks could be a double-crosser. The Ashbys are monsters of rectitude."

The boy pushed away the glass.

"Which must be why I don't take kindly to the idea of being a phoney. Thank you for my lunch, Mr. Loding. If I had known what you had in mind when you asked me to lunch with you, I wouldn't have — "

"All right, all right. Don't apologise. And don't run away; we'll go together. You don't like my proposition: very good: so be it. But you, on the other hand, fascinate me. I can hardly take my eyes off you, or believe that anything so unique exists. And since you are sure that my improper proposal to you has nothing of the personal in it, there is nothing against our walking as far as the Underground together."

Loding paid for their lunch, and as they walked out of the Green Man he said: "I won't ask where you are living in case you think I want to hound you. But I shall give you my address in the hope that you will come to see me. Oh, no; not about the proposition. If it isn't your cup of tea then it isn't your cup of tea; and if you felt like that you certainly wouldn't make a success of it. No, not about the proposition. I have something in my rooms that I think would interest you."

He paused artistically while they negotiated a street crossing.

"When my old home, Clare, was sold-after my father's death- Nancy bundled together all the personal things in my room and sent them to me. A whole trunkful of rubbish, which I have never had the energy to get rid of, and a large proportion of it consists of snapshots and photographs of the companions of my youth. I think you would find it very interesting."

He glanced sideways at the uncommunicative profile of his companion.

"Tell me," he said as they stopped at the entrance to the Underground, "do you play cards?"