Arnold started, and changed color. Sir Patrick (silently noticing him) stated the circumstances relating to Anne’s lost letter, and to the conclusion in his own mind which pointed to Bishopriggs as the person in possession of it. “I have to add,” he proceeded, “that Blanche, unfortunately, found an opportunity of speaking to Bishopriggs at Swanhaven. When she and Lady Lundie joined us at Edinburgh she showed me privately a card which had been given to her by Bishopriggs. He had described it as the address at which he might be heard of--and Blanche entreated me, before we started for London, to put the reference to the test. I told her that she had committed a serious mistake in attempting to deal with Bishopriggs on her own responsibility; and I warned her of the result in which I was firmly persuaded the inquiry would end. She declined to believe that Bishopriggs had deceived her. I saw that she would take the matter into her own hands again unless I interfered; and I went to the place. Exactly as I had anticipated, the person to whom the card referred me had not heard of Bishopriggs for years, and knew nothing whatever about his present movements. Blanche had simply put him on his guard, and shown him the propriety of keeping out of the way. If you should ever meet with him in the future--say nothing to your wife, and communicate with me. I decline to assist you in searching for Miss Silvester; but I have no objection to assist in recovering a stolen letter from a thief. So much for Bishopriggs.--Now as to the other man.” “Who is he?” “Your friend, Mr. Geoffrey Delamayn.” Arnold sprang to his feet in ungovernable surprise. “I appear to astonish you,” remarked Sir Patrick. Arnold sat down again, and waited, in speechless suspense, to hear what was coming next. “I have reason to know,” said Sir Patrick, “that Mr. Delamayn is thoroughly well acquainted with the nature of Miss Silvester’s present troubles. What his actual connection is with them, and how he came into possession of his information, I have not found out. My discovery begins and ends with the simple fact that he has the information.” “May I ask one question, Sir Patrick?” “What is it?” “How did you find out about Geoffrey Delamayn?” “It would occupy a long time,” answered Sir Patrick, “to tell you how--and it is not at all necessary to our purpose that you should know. My present obligation merely binds me to tell you--in strict confidence, mind!--that Miss Silvester’s secrets are no secrets to Mr. Delamayn. I leave to your discretion the use you may make of that information. You are now entirely on a par with me in relation to your knowledge of the case of Miss Silvester. Let us return to the question which I asked you when we first came into the room. Do you see the connection, now, between that question, and what I have said since?”