“I must begin by taking you back to a summer day fifteen years ago, when I was a boy of thirteen and Mark a young man of twenty-five.  His whole life was make-believe, and just now he was pretending to be a philanthropist.  He sat in our little drawing-room, flicking his gloves against the back of his left hand, and my mother, good soul, thought what a noble young gentleman he was, and Philip and I, hastily washed and crammed into collars, stood in front of him, nudging each other and kicking the backs of our heels and cursing him in our hearts for having interrupted our game.  He had decided to adopt one of us, kind Cousin Mark.  Heaven knows why he chose me.  Philip was eleven; two years longer to wait.  Perhaps that was why.

“Well, Mark educated me.  I went to a public school and to Cambridge, and I became his secretary.  Well, much more than his secretary as your friend Beverley perhaps has told you:  his land agent, his financial adviser, his courier, his—­but this most of all—­his audience.  Mark could never live alone.  There must always be somebody to listen to him.  I think in his heart he hoped I should be his Boswell.  He told me one day that he had made me his literary executor—­poor devil.  And he used to write me the absurdest long letters when I was away from him, letters which I read once and then tore up.  The futility of the man!

“It was three years ago that Philip got into trouble.  He had been hurried through a cheap grammar school and into a London office, and discovered there that there was not much fun to be got in this world on two pounds a week.  I had a frantic letter from him one day, saying that he must have a hundred at once, or he would be ruined, and I went to Mark for the money.  Only to borrow it, you understand; he gave me a good salary and I could have paid it back in three months.  But no.  He saw nothing for himself in it, I suppose; no applause, no admiration.  Philip’s gratitude would be to me, not to him.  I begged, I threatened, we argued; and while we were arguing, Philip was arrested.  It killed my mother—­he was always her favourite—­but Mark, as usual, got his satisfaction out of it.  He preened himself on his judgment of character in having chosen me and not Philip twelve years before!

“Later on I apologized to Mark for the reckless things I had said to him, and he played the part of a magnanimous gentleman with his accustomed skill, but, though outwardly we were as before to each other, from that day forward, though his vanity would never let him see it, I was his bitterest enemy.  If that had been all, I wonder if I should have killed him?  To live on terms of intimate friendship with a man whom you hate is dangerous work for your friend.  Because of his belief in me as his admiring and grateful protege and his belief in himself as my benefactor, he was now utterly in my power.  I could take my time and choose my opportunity.  Perhaps I should not have killed him, but I had sworn to have my revenge—­and there he was, poor vain fool, at my mercy.  I was in no hurry.