“You can’t think less of me than I do of myself, Inspector, when I tell you that at last after a protest and a long argument I submitted even in this humiliation. I am not trying to justify myself, but I just couldn’t face the trouble. I wrote the statement. Roper took it, and thanking me civilly, said he would keep it hidden as long as the money was paid. But if there was a failure to pay he would send it anonymously to the Institute authorities.

“After that everything seemed to become normal again. Every Saturday I secretly handed Roper a ten-shilling note and our relations otherwise went on as before. And then came that awful afternoon when my wife lost her life.

“I can never forget the horror of that time and I surely need not dwell on it? If you have made inquiries at Kintilloch you will know what took place. Every word I said then was the literal truth. I shall pass on to what happened afterwards, but if there is any question you want to ask I will try to answer it.”

“There is nothing so far.”

“One evening about a week after the funeral Roper called at my house and asked for an interview. I brought him into my study and then he referred to the ten shillings a week and said that he was sure I would see that his knowledge had now become vastly more valuable, and what was I going to do about it? I said that on the contrary it was now almost worthless. My wife was dead and I didn’t care what became of myself. There was only the nurse to think of, and even about her I didn’t now mind so much, as she had gone to America. At the same time for peace’ sake I would continue the payments. He need not, however, think he was going to get any more out of me.

“His answer dumbfounded me. It left me terribly shaken and upset. He said he expected I hadn’t known it, but the police suspected me of murdering my wife, and were making all sorts of inquiries about me. He pointed out that it was generally believed my wife and I hated each other: that we were seldom seen together and that she had been overheard speaking disparagingly of me. Then he said I was alone in the house when she met her death; no one had seen the accident and there was only my word for what had taken place. He said it was known there was a cricket bat in the hall, and that it would be obvious to any one that a blow on the temple from the flat side of the bat would look just like a bruise caused by striking the floor. All this, he said, the police had discovered, but what prevented them taking action was the fact that they didn’t think they could show a strong enough motive to take the case into court. That, he said—and I shall never forget the devilish look in his eyes—that was where he came in. He had but to go forward and relate the incident in the shrubbery to complete their case. He explained that he could do it in a perfectly natural way. He would say that while the affair was only a mere intrigue he did not consider it his business to interfere, but when it came to murder it was a different thing. He did not wish to be virtually an accessory after the fact.

“His remarks came as a tremendous shock to me. The possibility of such a terrible suspicion had not occurred to me, but now I saw that there was indeed a good deal of circumstantial evidence against me. I need not labour the matter. The result of our long conversation is all you wish to hear. In the end I was guilty of the same weakness and folly that I had shown before; I asked him his price and agreed to pay it. Two pounds a week, he demanded, until further notice, and I gave way. But when he went on to say that as before he required a guarantee and must have a written confession of the crime, I felt he had passed the limit. I refused to avow a crime of which I was not guilty, and dared him to do his worst.

“But once again he proved himself one too many for me. With his cynical evil smile he took two photographs out of his pocket and handed me one. It was an extraordinarily clear copy of my confession of the intrigue with the nurse. Then he handed me the other photograph and at first I just couldn’t believe my eyes. It was a copy of this,” and Dr. Philpot picked up the note that French had found in Roper’s safe deposit.

“I asked him, of course, for an explanation and he admitted brazenly that he had forged the letter. He had spent the week since the accident making copy after copy until he had got it perfect. When I stormed at him and threatened him with arrest he just laughed and said the boot was on the other foot. He said I needn’t have the slightest uneasiness, that so long as the money was paid the letter would never see the light of day. Otherwise the document would be enclosed anonymously to the police. You may guess how it ended up. I promised to pay: and I paid.”

Dr. Philpot’s face looked more gray and weary than ever and his eyes took on a deeper sombreness as he said these words. He waited as if for French to speak, but French did not move and he resumed:—