"They say that genius is an infinite capacity for taking pains," he remarked with a smile. "It's a very bad definition, but it does apply to detective work."
Gregson and Lestrade had watched the manoeuvres of their amateur companion with considerable curiosity and some contempt. They evidently failed to appreciate the fact, which I had begun to realize, that Sherlock Holmes' smallest actions were all directed towards some definite and practical end.
"What do you think of it, sir?" they both asked.
"It would be robbing you of the credit of the case if I was to presume to help you," remarked my friend. "You are doing so well now that it would be a pity for anyone to interfere." There was a world of sarcasm in his voice as he spoke. "If you will let me know how your investigations go," he continued, "I shall be happy to give you any help I can. In the meantime I should like to speak to the constable who found the body. Can you give me his name and address?"
Lestrade glanced at his note-book. "John Rance," he said. "He is off duty now. You will find him at 46, Audley Court, Kennington Park Gate."
Holmes took a note of the address.
"Come along, Doctor," he said; "we shall go and look him up. I'll tell you one thing which may help you in the case," he continued, turning to the two detectives. "There has been murder done, and the murderer was a man. He was more than six feet high, was in the prime of life, had small feet for his height, wore coarse, square-toed boots and smoked a Trichinopoly cigar. He came here with his victim in a four-wheeled cab, which was drawn by a horse with three old shoes and one new one on his off fore leg. In all probability the murderer had a florid face, and the finger-nails of his right hand were remarkably long. These are only a few indications, but they may assist you."
Lestrade and Gregson glanced at each other with an incredulous smile.
"If this man was murdered, how was it done?" asked the former.
"Poison," said Sherlock Holmes curtly, and strode off. "One other thing, Lestrade," he added, turning round at the door: "'Rache,' is the German for 'revenge;' so don't lose your time looking for Miss Rachel."
With which Parthian shot he walked away, leaving the two rivals open-mouthed behind him.
Chapter 4 What John Rance Had to Tell
It was one o'clock when we left No. 3, Lauriston Gardens. Sherlock Holmes led me to the nearest telegraph office, whence he dispatched a long telegram. He then hailed a cab, and ordered the driver to take us to the address given us by Lestrade.
"There is nothing like first hand evidence," he remarked; "as a matter of fact, my mind is entirely made up upon the case, but still we may as well learn all that is to be learned."
"You amaze me, Holmes," said I. "Surely you are not as sure as you pretend to be of all those particulars which you gave."
"There's no room for a mistake," he answered. "The very first thing which I observed on arriving there was that a cab had made two ruts with its wheels close to the curb. Now, up to last night, we have had no rain for a week, so that those wheels which left such a deep impression must have been there during the night. There were the marks of the horse's hoofs, too, the outline of one of which was far more clearly cut than that of the other three, showing that that was a new shoe. Since the cab was there after the rain began, and was not there at any time during the morning — I have Gregson's word for that — it follows that it must have been there during the night, and, therefore, that it brought those two individuals to the house."
"That seems simple enough," said I; "but how about the other man's height?"
"Why, the height of a man, in nine cases out of ten, can be told from the length of his stride. It is a simple calculation enough, though there is no use my boring you with figures. I had this fellow's stride both on the clay outside and on the dust within. Then I had a way of checking my calculation. When a man writes on a wall, his instinct leads him to write about the level of his own eyes. Now that writing was just over six feet from the ground. It was child's play."
"And his age?" I asked.
"Well, if a man can stride four and a-half feet without the smallest effort, he can't be quite in the sere and yellow. That was the breadth of a puddle on the garden walk which he had evidently walked across. Patent-leather boots had gone round, and Square-toes had hopped over. There is no mystery about it at all. I am simply applying to ordinary life a few of those precepts of observation and deduction which I advocated in that article. Is there anything else that puzzles you?"
"The finger nails and the Trichinopoly," I suggested.
"The writing on the wall was done with a man's forefinger dipped in blood. My glass allowed me to observe that the plaster was slightly scratched in doing it, which would not have been the case if the man's nail had been trimmed. I gathered up some scattered ash from the floor. It was dark in colour and flakey — such an ash as is only made by a Trichinopoly. I have made a special study of cigar ashes — in fact, I have written a monograph upon the subject. I flatter myself that I can distinguish at a glance the ash of any known brand, either of cigar or of tobacco. It is just in such details that the skilled detective differs from the Gregson and Lestrade type."
"And the florid face?" I asked.
"Ah, that was a more daring shot, though I have no doubt that I was right. You must not ask me that at the present state of the affair."
I passed my hand over my brow. "My head is in a whirl," I remarked; "the more one thinks of it the more mysterious it grows. How came these two men — if there were two men — into an empty house? What has become of the cabman who drove them? How could one man compel another to take poison? Where did the blood come from? What was the object of the murderer, since robbery had no part in it? How came the woman's ring there? Above all, why should the second man write up the German word RACHE before decamping? I confess that I cannot see any possible way of reconciling all these facts."
My companion smiled approvingly.
"You sum up the difficulties of the situation succinctly and well," he said. "There is much that is still obscure, though I have quite made up my mind on the main facts. As to poor Lestrade's discovery it was simply a blind intended to put the police upon a wrong track, by suggesting Socialism and secret societies. It was not done by a German. The A, if you noticed, was printed somewhat after the German fashion. Now, a real German invariably prints in the Latin character, so that we may safely say that this was not written by one, but by a clumsy imitator who overdid his part. It was simply a ruse to divert inquiry into a wrong channel. I'm not going to tell you much more of the case, Doctor. You know a conjuror gets no credit when once he has explained his trick, and if I show you too much of my method of working, you will come to the conclusion that I am a very ordinary individual after all."
"I shall never do that," I answered; "you have brought detection as near an exact science as it ever will be brought in this world."
My companion flushed up with pleasure at my words, and the earnest way in which I uttered them. I had already observed that he was as sensitive to flattery on the score of his art as any girl could be of her beauty.
"I'll tell you one other thing," he said. "Patent leathers and Square-toes came in the same cab, and they walked down the pathway together as friendly as possible — arm-in-arm, in all probability. When they got inside