Sherlock Holmes - Deductions

“But why Turkish?” asked Mr. Sherlock Holmes, gazing fixedly at my boots. I was reclining in a cane-backed chair at the moment, and my protruded feet had attracted his ever-active attention.
“English,” I answered in some surprise. “I got them at Latimer’s, in Oxford Street.”
Holmes smiled with an expression of weary patience.
“The bath!” he said; “the bath! Why the relaxing and expensive Turkish rather than the invigorating home-made article?”
“The train of reasoning is not very obscure, Watson,” said Holmes with a mischievous twinkle. “It belongs to the same elementary class of deduction which I should illustrate if I were to ask you who shared your cab in your drive this morning.”
“You observe that you have some splashes on the left sleeve and shoulder of your coat. Had you sat in the centre of a hansom you would probably have had no splashes, and if you had they would certainly have been symmetrical. Therefore it is clear that you sat at the side. Therefore it is equally clear that you had a companion.”

“You are in the habit of doing up your boots in a certain way. I see them on this occasion fastened with an elaborate double bow, which is not your usual method of tying them. You have, therefore, had them off. Who has tied them? A bootmaker — or the boy at the bath. It is unlikely that it is the bootmaker, since your boots are nearly new. Well, what remains? The bath.”

“This poor lady is in the hands of a most infernal couple, who will stick at nothing, Watson. That she is already dead is a very likely supposition. If not, she is undoubtedly in some sort of confinement and unable to write to Miss Dobney or her other friends. It is always possible that she never reached London, or that she has passed through it, but the former is improbable, as, with their system of registration, it is not easy for foreigners to play tricks with the Continental police; and the latter is also unlikely, as these rogues could not hope to find any other place where it would be as easy to keep a person under restraint. All my instincts tell me that she is in London."

“These villains have coaxed this unhappy lady to London, after first alienating her from her faithful maid. If she has written any letters they have been intercepted. Through some confederate they have engaged a furnished house. Once inside it, they have made her a prisoner, and they have become possessed of the valuable jewellery which has been their object from the first. Already they have begun to sell part of it, which seems safe enough to them, since they have no reason to think that anyone is interested in the lady’s fate. When she is released she will, of course, denounce them. Therefore, she must not be released. But they cannot keep her under lock and key forever. So murder is their only solution.”

“We will start now, not from the lady but from the coffin and argue backward. That incident proves, I fear, beyond all doubt that the lady is dead. It points also to an orthodox burial with proper accompaniment of medical certificate and official sanction. Had the lady been obviously murdered, they would have buried her in a hole in the back garden. But here all is open and regular. What does that mean? Surely that they have done her to death in some way which has deceived the doctor and simulated a natural end — poisoning, perhaps. And yet how strange that they should ever let a doctor approach her unless he were a confederate, which is hardly a credible proposition.”

“My night was haunted by the thought that somewhere a clue, a strange sentence, a curious observation, had come under my notice and had been too easily dismissed. Then, suddenly, in the gray of the morning, the words came back to me. It was the remark of the undertaker’s wife, as reported by Philip Green. She had said, ‘It should be there before now. It took longer, being out of the ordinary.’ It was the coffin of which she spoke. It had been out of the ordinary. That could only mean that it had been made to some special measurement. But why? Why? Then in an instant I remembered the deep sides, and the little wasted figure at the bottom. Why so large a coffin for so small a body? To leave room for another body. Both would be buried under the one certificate. It had all been so clear, if only my own sight had not been dimmed. At eight the Lady Frances would be buried. Our one chance was to stop the coffin before it left the house.”

“You can reconstruct the scene well enough. You saw the horrible den upstairs, where the poor lady had been kept so long. They rushed in and overpowered her with their chloroform, carried her down, poured more into the coffin to insure against her waking, and then screwed down the lid.”