The Memoirs of Sherlock Holmes

"I confess," said the Colonel, "that even now I cannot see how it helps us."
"It was the first link in my chain of reasoning. Powdered opium is by no means tasteless. The flavor is not disagreeable, but it is perceptible. Were it mixed with any ordinary dish the eater would undoubtedly detect it, and would probably eat no more. A curry was exactly the medium which would disguise this taste. By no possible supposition could this stranger, Fitzroy Simpson, have caused curry to be served in the trainer's family that night, and it is surely too monstrous a coincidence to suppose that he happened to come along with powdered opium upon the very night when a dish happened to be served which would disguise the flavor. That is unthinkable. Therefore Simpson becomes eliminated from the case, and our attention centers upon Straker and his wife, the only two people who could have chosen curried mutton for supper that night. The opium was added after the dish was set aside for the stable-boy, for the others had the same for supper with no ill effects. Which of them, then, had access to that dish without the maid seeing them?
"Before deciding that question I had grasped the significance of the silence of the dog, for one true inference invariably suggests others. The Simpson incident had shown me that a dog was kept in the stables, and yet, though some one had been in and had fetched out a horse, he had not barked enough to arouse the two lads in the loft. Obviously the midnight visitor was some one whom the dog knew well.
"I was already convinced, or almost convinced, that John Straker went down to the stables in the dead of the night and took out Silver Blaze. For what purpose? For a dishonest one, obviously, or why should he drug his own stable-boy? And yet I was at a loss to know why. There have been cases before now where trainers have made sure of great sums of money by laying against their own horses, through agents, and then preventing them from winning by fraud. Sometimes it is a pulling jockey. Sometimes it is some surer and subtler means. What was it here? I hoped that the contents of his pockets might help me to form a conclusion.
"And they did so. You cannot have forgotten the singular knife which was found in the dead man's hand, a knife which certainly no sane man would choose for a weapon. It was, as Dr. Watson told us, a form of knife which is used for the most delicate operations known in surgery. And it was to be used for a delicate operation that night. You must know, with your wide experience of turf matters, Colonel Ross, that it is possible to make a slight nick upon the tendons of a horse's ham, and to do it subcutaneously, so as to leave absolutely no trace. A horse so treated would develop a slight lameness, which would be put down to a strain in exercise or a touch of rheumatism, but never to foul play."
"Villain! Scoundrel!" cried the Colonel.
"We have here the explanation of why John Straker wished to take the horse out on to the moor. So spirited a creature would have certainly roused the soundest of sleepers when it felt the prick of the knife. It was absolutely necessary to do it in the open air."
"I have been blind!" cried the Colonel. "Of course that was why he needed the candle, and struck the match."
"Undoubtedly. But in examining his belongings I was fortunate enough to discover not only the method of the crime, but even its motives. As a man of the world, Colonel, you know that men do not carry other people's bills about in their pockets. We have most of us quite enough to do to settle our own. I at once concluded that Straker was leading a double life, and keeping a second establishment. The nature of the bill showed that there was a lady in the case, and one who had expensive tastes. Liberal as you are with your servants, one can hardly expect that they can buy twenty-guinea walking dresses for their ladies. I questioned Mrs. Straker as to the dress without her knowing it, and having satisfied myself that it had never reached her, I made a note of the milliner's address, and felt that by calling there with Straker's photograph I could easily dispose of the mythical Derbyshire.
"From that time on all was plain. Straker had led out the horse to a hollow where his light would be invisible. Simpson in his flight had dropped his cravat, and Straker had picked it up—with some idea, perhaps, that he might use it in securing the horse's leg. Once in the hollow, he had got behind the horse and had struck a light; but the creature frightened at the sudden glare, and with the strange instinct of animals feeling that some mischief was intended, had lashed out, and the steel shoe had struck Straker full on the forehead. He had already, in spite of the rain, taken off his overcoat in order to do his delicate task, and so, as he fell, his knife gashed his thigh. Do I make it clear?"
"Wonderful!" cried the Colonel. "Wonderful! You might have been there!"
"My final shot was, I confess a very long one. It struck me that so astute a man as Straker would not undertake this delicate tendon-nicking without a little practice. What could he practice on? My eyes fell upon the sheep, and I asked a question which, rather to my surprise, showed that my surmise was correct.
"When I returned to London I called upon the milliner, who had recognized Straker as an excellent customer of the name of Derbyshire, who had a very dashing wife, with a strong partiality for expensive dresses. I have no doubt that this woman had plunged him over head and ears in debt, and so led him into this miserable plot."
"You have explained all but one thing," cried the Colonel. "Where was the horse?"
"Ah, it bolted, and was cared for by one of your neighbors. We must have an amnesty in that direction, I think. This is Clapham Junction, if I am not mistaken, and we shall be in Victoria in less than ten minutes. If you care to smoke a cigar in our rooms, Colonel, I shall be happy to give you any other details which might interest you."
 
The Yellow Face
In publishing these short sketches based upon the numerous cases in which my companion's singular gifts have made us the listeners to, and eventually the actors in, some strange drama, it is only natural that I should dwell rather upon his successes than upon his failures. And this not so much for the sake of his reputations—for, indeed, it was when he was at his wits' end that his energy and his versatility were most admirable—but because where he failed it happened too often that no one else succeeded, and that the tale was left forever without a conclusion. Now and again, however, it chanced that even when he erred, the truth was still discovered. I have noted of some half-dozen cases of the kind the Adventure of the Musgrave Ritual and that which I am about to recount are the two which present the strongest features of interest.
Sherlock Holmes was a man who seldom took exercise for exercise's sake. Few men were capable of greater muscular effort, and he was undoubtedly one of the finest boxers of his weight that I have ever seen; but he looked upon aimless bodily exertion as a waste of energy, and he seldom bestirred himself save when there was some professional object to be served. Then he was absolutely untiring and indefatigable. That he should have kept himself in training under such circumstances is remarkable, but his diet was usually of the sparest, and his habits were simple to the verge of austerity. Save for the occasional use of cocaine, he had no vices, and he only turned to the drug as a protest against the monotony of existence when cases were scanty and the papers uninteresting. One day in early spring he had so far relaxed as to go for a walk with me in the Park, where the first faint shoots of green were breaking out upon the elms, and the sticky spearheads of the chestnuts were just beginning to burst into their fivefold leaves. For two hours we rambled about together, in silence for the most part, as befits two men who know each other intimately. It was nearly five before we were back in Baker Street once more.