Sir Arthur Conan Doyle: Memoirs of Sherlock Holmes

7. Adventure VII: The Crooked Man (continued)

"My first conjecture was, that possibly there had been some passages between this young lady and the old soldier, which the former had now confessed to the wife. That would account for the angry return, and also for the girl's denial that anything had occurred. Nor would it be entirely incompatible with most of the words overhead. But there was the reference to David, and there was the known affection of the Colonel for his wife, to weigh against it, to say nothing of the tragic intrusion of this other man, which might, of course, be entirely disconnected with what had gone before. It was not easy to pick one's steps, but, on the whole, I was inclined to dismiss the idea that there had been anything between the Colonel and Miss Morrison, but more than ever convinced that the young lady held the clue as to what it was which had turned Mrs. Barclay to hatred of her husband. I took the obvious course, therefore, of calling upon Miss M., of explaining to her that I was perfectly certain that she held the facts in her possession, and of assuring her that her friend, Mrs. Barclay, might find herself in the dock upon a capital charge unless the matter were cleared up.

"Miss Morrison is a little ethereal slip of a girl, with timid eyes and blond hair, but I found her by no means wanting in shrewdness and common-sense. She sat thinking for some time after I had spoken, and then, turning to me with a brisk air of resolution, she broke into a remarkable statement which I will condense for your benefit.

"'I promised my friend that I would say nothing of the matter, and a promise is a promise,; said she; 'but if I can really help her when so serious a charge is laid against her, and when her own mouth, poor darling, is closed by illness, then I think I am absolved from my promise. I will tell you exactly what happened upon Monday evening.