The Hound of the Baskervilles

"My dear Holmes!"
"Am I right?"
"Certainly, but how?"
He laughed at my bewildered expression.
"There is a delightful freshness about you, Watson, which makes it a pleasure to exercise any small powers which I possess at your expense. A gentleman goes forth on a showery and miry day. He returns immaculate in the evening with the gloss still on his hat and his boots. He has been a fixture therefore all day. He is not a man with intimate friends. Where, then, could he have been? Is it not obvious?"
"Well, it is rather obvious."
"The world is full of obvious things which nobody by any chance ever observes. Where do you think that I have been?"
"A fixture also."
"On the contrary, I have been to Devonshire."
"In spirit?"
"Exactly. My body has remained in this armchair and has, I regret to observe, consumed in my absence two large pots of coffee and an incredible amount of tobacco. After you left I sent down to Stamford's for the Ordnance map of this portion of the moor, and my spirit has hovered over it all day. I flatter myself that I could find my way about."
"A large-scale map, I presume?"
"Very large." He unrolled one section and held it over his knee. "Here you have the particular district which concerns us. That is Baskerville Hall in the middle."
"With a wood round it?"
"Exactly. I fancy the yew alley, though not marked under that name, must stretch along this line, with the moor, as you perceive, upon the right of it. This small clump of buildings here is the hamlet of Grimpen, where our friend Dr. Mortimer has his headquarters. Within a radius of five miles there are, as you see, only a very few scattered dwellings. Here is Lafter Hall, which was mentioned in the narrative. There is a house indicated here which may be the residence of the naturalist – Stapleton, if I remember right, was his name. Here are two moorland farmhouses, High Tor and Foulmire. Then fourteen miles away the great convict prison of Princetown. Between and around these scattered points extends the desolate, lifeless moor. This, then, is the stage upon which tragedy has been played, and upon which we may help to play it again."
"It must be a wild place."
"Yes, the setting is a worthy one. If the devil did desire to have a hand in the affairs of men –"
"Then you are yourself inclining to the supernatural explanation."
"The devil's agents may be of flesh and blood, may they not? There are two questions waiting for us at the outset. The one is whether any crime has been committed at all; the second is, what is the crime and how was it committed? Of course, if Dr. Mortimer's surmise should be correct, and we are dealing with forces outside the ordinary laws of Nature, there is an end of our investigation. But we are bound to exhaust all other hypotheses before falling back upon this one. I think we'll shut that window again, if you don't mind. It is a singular thing, but I find that a concentrated atmosphere helps a concentration of thought. I have not pushed it to the length of getting into a box to think, but that is the logical outcome of my convictions. Have you turned the case over in your mind?"
"Yes, I have thought a good deal of it in the course of the day."
"What do you make of it?"
"It is very bewildering."
"It has certainly a character of its own. There are points of distinction about it. That change in the footprints, for example. What do you make of that?"
"Mortimer said that the man had walked on tiptoe down that portion of the alley."
"He only repeated what some fool had said at the inquest Why should a man walk on tiptoe down the alley?"
"What then?"
"He was running, Watson – running desperately, running for his life, running until he burst his heart-and fell dead upon his face."
"Running from what?"
"There lies our problem. There are indications that the man was crazed with fear before ever he began to run."
"How can you say that?"
"I am presuming that the cause of his fears came to him across the moor. If that were so, and it seems most probable only a man who had lost his wits would have run from the house instead of towards it. If the gipsy's evidence may be taken as true, he ran with cries for help in the direction where help was least likely to be. Then, again, whom was he waiting for that night, and why was he waiting for him in the yew alley rather than in his own house?"
"You think that he was waiting for someone?"
"The man was elderly and infirm. We can understand his taking an evening stroll, but the ground was damp and the night inclement. Is it natural that he should stand for five or ten minutes, as Dr. Mortimer, with more practical sense than I should have given him credit for, deduced from the cigar ash?"
"But he went out every evening."
"I think it unlikely that he waited at the moor gate every evening. On the contrary, the evidence is that he avoided the moor. That night he waited there. It was the night before he made his departure for London. The thing takes shape, Watson. It becomes coherent. Might I ask you to hand me my violin, and we will postpone all further thought upon this business until we have had the advantage of meeting Dr. Mortimer and Sir Henry Baskerville in the morning."
 
Chapter 4 – Sir Henry Baskerville
Our breakfast table was cleared early, and Holmes waited in his dressing-gown for the promised interview. Our clients were punctual to their appointment, for the clock had just struck ten when Dr. Mortimer was shown up, followed by the young baronet. The latter was a small, alert, dark-eyed man about thirty years of age, very sturdily built, with thick black eyebrows and a strong, pugnacious face. He wore a ruddy-tinted tweed suit and had the weather-beaten appearance of one who has spent most of his time in the open air, and yet there was something in his steady eye and the quiet assurance of his bearing which indicated the gentleman.
"This is Sir Henry Baskerville," said Dr. Mortimer.
"Why, yes," said he, "and the strange thing is, Mr. Sherlock Holmes, that if my friend here had not proposed coming round to you this morning I should have come on my own account. I understand that you think out little puzzles, and I've had one this morning which wants more thinking out than I am able to give it."
"Pray take a seat, Sir Henry. Do I understand you to say that you have yourself had some remarkable experience since you arrived in London?"
"Nothing of much importance, Mr. Holmes. Only a joke, as like as not. It was this letter, if you can call it a letter, which reached me this morning."
He laid an envelope upon the table, and we all bent over it. It was of common quality, grayish in colour. The address, "Sir Henry Baskerville, Northumberland Hotel," was printed in rough characters; the post-mark "Charing Cross," and the date of posting the preceding evening.
"Who knew that you were going to the Northumberland Hotel?" asked Holmes, glancing keenly across at our visitor.
"No one could have known. We only decided after I met Dr. Mortimer."
"But Dr. Mortimer was no doubt already stopping there?"
"No, I had been staying with a friend," said the doctor. "There was no possible indication that we intended to go to this hotel."