“Yes,” he said, speaking rapidly. “Jack Fothergill was brutally done to death with a knife that penetrated to the heart. But that was not all: the stiletto left sticking in the wound was discovered to be mine, a gold pencil-case belonging to me was found upon the floor, and the valet gave information to the police that at ten o’clock that night he had opened the door to allow me to depart!”

In the moonlight his eyes had a fierce glitter in them and his bare brown arms were thrust through the folds of his burnouse as he gesticulated to emphasise his words. There was a silence over the camp, but the gay café-chantant song of Mdlle. Duclerc, with which one of the Spahis was entertaining his comrades, sounded shrill and tuneful in the clear bright air—

“Je jou’ très bien d’ la mandoline,
Ça fait moins d’ train que le tambourin;
Puisque quand on a la jambe fine,
Ça permet d’ la faire voir un brin.”

“Strangely enough,” my companion continued, after a pause; “I remained that night with a friend, and judge my horror and amazement when next morning I read in the newspapers of the tragedy, and learned that I was suspected of the crime! It was true that I had called upon the murdered man just before ten o’clock, that the pencil-case had been in my pocket, but of the murder I was entirely innocent. Yet how could I prove an alibi, especially when the doctor had given an opinion that death had occurred at ten o’clock—the hour I left! The police were searching for me, but through that long and terrible day I remained in hiding. Once or twice I was tempted to give myself up and bravely face the awful charge; but there was one thing which prevented this. All interest in life had been crushed from my heart by an announcement of two lines in the same issue of the paper, stating that a marriage had been arranged and would shortly take place between Violet and De Largentière. My hopes were shattered, for my love had been cast aside. She had actually accepted the man she had professed to hate!”

“But did you not clear yourself?” I asked. “Surely you could easily have done so?”

“How could I? Were not the suspicions rendered more justifiable by reason of my visit just prior to the crime. Again, I had not returned to my chambers that night, so day after day I remained in hiding. Though innocent, I was not wholly prepared to meet the charge, for I saw clearly that Jack and I had fallen victims of a foul plot. The crime that cost my friend his life was attributed to jealousy on my part, and with an incentive thus invented, I clearly saw that the circumstantial evidence was strong enough to convict me. I sought my brother’s assistance, and, half mad with terror and despair, I escaped from England. To return to France would be to run into the arms of the police, so I resolved to come here and in the wild life of the desert to bury the past.”

“But by whom was your friend Fothergill stabbed?” I asked.

“Let me tell you,” he replied. “Since that day, when like a criminal I fled from the trial I was afraid to face, I have learned only one fact, though not until a year ago did it come to my knowledge. It appears that on the evening of the murder, Fothergill wrote telling me that during a visit to Paris he had discovered certain details connected with the relations between Mariette Lestrade, a pretty singer whose chansons de poirrot were well known at the Moulin Rouge and Ambassadeurs and the ex-Minister of Education. He had that day called at Long’s Hotel, in Bond Street, where the General was staying, and in the course of a stormy interview threatened that if he still continued his suit, he would expose his secret attachment to this star of the café-concert, and take his cousin to her, so that she might investigate for herself. Lord Isleworth’s daughter would have a handsome dowry which was much needed to renovate the departed splendour of the ex-Minister’s estate in the Charente, therefore he was obstinate, laughed, snapped his fingers, and defied Jack. This interview took place at four o’clock in the afternoon, and Jack wrote to me from the Naval and Military Club, telling me everything, and stating that De Largentière had threatened his life. This letter was delivered at my chambers the same night, but I was not there, nor did I return, therefore my brother took charge of it and after nearly two years it reached me out here, unopened.”

“In face of such evidence as that,” I said, “the identity of the actual murderer is not very far to seek.”

“No,” he said, in a low, harsh tone.