He was clearly very much embarrassed as he introduced his companion, an officer in plain clothes, whom he announced as Sergeant Moore, of Southampton.

All three of us looked keenly at the stranger whose personality might mean so much to the success of our plans and hopes. He was a thoroughly representative specimen of our admirable County police. A well-built man, in superb physical condition, good-looking and intelligent. I summed him up at once as a man who would be inflexible in the exercise of his duty, and alert in detecting any suspicious circumstance; in fact, a difficult man to hoodwink, and impossible to corrupt had anyone wished to do so.

Nevertheless, I was encouraged by something in his face that suggested the influence of routine. It was not the face of an imaginative man. This was not the detective of fiction, nor even one of those choicer spirits of Scotland Yard to whom no combination of circumstances is so improbable as to appear incredible. I trusted that it might be impossible to Sergeant Moore, confronted with a bishop and a magistrate, to suspect them of complicity in the vice of an obscure Oriental criminal.

When the introductions were completed, Sergeant Moore himself proceeded to explain.

“I am very sorry to intrude, my Lord and gentlemen,” he began, “we would not have troubled you if we could have helped it. But the fact is I have a warrant to execute, and Constable Davis has seen a man answering the description coming here just before I arrived. To avoid troubling you, sir, I have had the house watched so as to take him when he came out. But as it was getting dark and he did not appear I became anxious, and thought you would excuse me coming in to arrest him here, though I know it must be unpleasant.”

“I hope none of us are wanted, sergeant?” Edmund enquired jokingly.

“No, sir,” replied the sergeant with a smile. “No, it is some kind of a foreigner from Egypt, name of Osman. He was one of the crew of a steamer that made Southampton last night. He managed to give us the slip there, but we had no difficulty in tracing him to Brighton, as he took the train there, and the young man in the ticket office remembered his way of speaking. I came on to Brighton with two men in a car and we lost the scent there, but we heard of a foreigner being seen on this road in the afternoon. Fortunately, Constable Davis here noticed him and followed him to this house. He naturally thought it was all right when he saw him let in. I hope he is still here, sir.”

“I left him in the next room, having some food,” I said. “He was my guide, or dragoman, during a recent trip in Egypt, and came here asking for money, as he said he was destitute and knew no one else in England.”

Sergeant Moore looked much relieved.

“I think it will be best if we go and slip these on at once,” he said, producing a pair of handcuffs. “Davis and I will just slip in quietly, and get him unawares. He is said to be a dangerous character, and I don’t want any disturbance in the house.”