"I thought, therefore, that if you had it once in your mind that somebody else held to such a possibility, you would by degrees get proof; or at any rate such ideas as would convince yourself, either for or against it. Then we would come to some conclusion; or at any rate we should so exhaust all other possibilities that the most likely one would remain as the nearest thing to proof, or strong suspicion, that we could get. After that we should have to—"
Just at this moment the door opened and Miss Trelawny entered the room. The moment she saw us she drew back quickly, saying:
"Oh, I beg pardon! I did not know you were here, and engaged." By the time I had stood up, she was about to go back.
"Do come in," I said; "Sergeant Daw and I were only talking matters over."
Whilst she was hesita
