“And how could you tell that they would make their attempt to-night?” I asked.

“Well, when they closed their League offices that was a sign that they cared no longer about Mr. Jabez Wilson’s presence, in other words, that they had completed their tunnel. But it was essential that they should use it soon, as it might be discovered, or the bullion might be removed. Saturday would suit them better than any other day, as it would give them two days for their escape. For all these reasons I expected them to come to-night.”

“You reasoned it out beautifully,” I exclaimed in unfeigned admiration. “It is so long a chain, and yet every link rings true.”

“It saved me from ennui,” he answered, yawning. “Alas! I already feel it closing in upon me. My life is spent in one long effort to escape from the commonplaces of existence. These little problems help me to do so.”

“And you are a benefactor of the race,” said I.

He shrugged his shoulders. “Well, perhaps, after all, it is of some little use,” he remarked. “‘L’homme c’est rien – l’œuvre c’est tout,’[33] as Gustave Flaubert wrote to Georges Sand.”[34]

“My dear fellow,” said Sherlock Holmes as we sat on either side of the fire in his lodgings at Baker Street, “life is infinitely stranger than anything which the mind of man could invent. We would not dare to conceive the things which are really mere commonplaces of existence. If we could fly out of that window hand in hand, hover over this great city, gently remove the roofs, and peep in at the queer things which are going on, the strange coincidences, the plannings, the cross-purposes, the wonderful chains of events, working through generation, and leading to the most outré results, it would make all fiction with its conventionalities and foreseen conclusions most stale and unprofitable.”

“And yet I am not convinced of it,” I answered. “The cases which come to light in the papers are, as a rule, bald enough, and vulgar enough. We have in our police reports realism pushed to its extreme limits, and yet the result is, it must be confessed, neither fascinating nor artistic.”

“A certain selection and discretion must be used in producing a realistic effect,” remarked Holmes. “This is wanting in the police report, where more stress is laid, perhaps, upon the platitudes of the magistrate than upon the details, which to an observer contain the vital essence of the whole matter. Depend upon it, there is nothing so unnatural as the commonplace.”

I smiled and shook my head. “I can quite understand your thinking so.” I said. “Of course, in your position of unofficial adviser and helper to everybody who is absolutely puzzled, throughout three continents, you are brought in contact with all that is strange and bizarre. But here” – I picked up the morning paper from the ground – “let us put it to a practical test. Here is the first heading upon which I come. ‘A husband’s cruelty to his wife.’ There is half a column of print, but I know without reading it that it is all perfectly familiar to me. There is, of course, the other woman, the drink, the push, the blow, the bruise, the sympathetic sister or landlady. The crudest of writers could invent nothing more crude.”

“Indeed, your example is an unfortunate one for your argument,” said Holmes, taking the paper and glancing his eye down it. “This is the Dundas separation case, and, as it happens, I was engaged in clearing up some small points in connection with it. The husband was a teetotaler, there was no other woman, and the conduct complained of was that he had drifted into the habit of winding up every meal by taking out his false teeth and hurling them at his wife, which, you will allow, is not an action likely to occur to the imagination of the average story-teller. Take a pinch of snuff, Doctor, and acknowledge that I have scored over you in your example.”

He held out his snuffbox of old gold, with a great amethyst in the centre of the lid. Its splendour was in such contrast to his homely ways and simple life that I could not help commenting upon it.

“Ah,” said he, “I forgot that I had not seen you for some weeks. It is a little souvenir from the King of Bohemia in return for my assistance in the case of the Irene Adler papers.”

“And the ring?” I asked, glancing at a remarkable brilliant which sparkled upon his finger.

“It was from the reigning family of Holland, though the matter in which I served them was of such delicacy that I cannot confide it even to you, who have been good enough to chronicle one or two of my little problems.”

“And have you any on hand just now?” I asked with interest.

“Some ten or twelve, but none which present any feature of interest. They are important, you understand, without being interesting. Indeed, I have found that it is usually in unimportant matters that there is a field for the observation, and for the quick analysis of cause and effect which gives the charm to an investigation. The larger crimes are apt to be the simpler, for the bigger the crime the more obvious, as a rule, is the motive. In these cases, save for one rather intricate matter which has been referred to me from Marseilles, there is nothing which presents any features of interest. It is possible, however, that I may have something better before very many minutes are over, for this is one of my clients, or I am much mistaken.”

He had risen from his chair and was standing between the parted blinds gazing down into the dull neutral-tinted London street. Looking over his shoulder, I saw that on the pavement opposite there stood a large woman with a heavy fur boa round her neck, and a large curling red feather in a broad-brimmed hat which was tilted in a coquettish Duchess of Devonshire fashion over her ear. From under this great panoply she peeped up in a nervous, hesitating fashion at our windows, while her body oscillated backward and forward, and her fingers fidgeted with her glove buttons. Suddenly, with a plunge, as of the swimmer who leaves the bank, she hurried across the road, and we heard the sharp clang of the bell.

“I have seen those symptoms before,” said Holmes, throwing his cigarette into the fire. “Oscillation upon the pavement always means an affaire de coeur[35]. She would like advice, but is not sure that the matter is not too delicate for communication. And yet even here we may discriminate. When a woman has been seriously wronged by a man she no longer oscillates, and the usual symptom is a broken bell wire. Here we may take it that there is a love matter, but that the maiden is not so much angry as perplexed, or grieved. But here she comes in person to resolve our doubts.”

As he spoke there was a tap at the door, and the boy in buttons entered to announce Miss Mary Sutherland, while the lady herself loomed behind his small black figure like a full-sailed merchant-man behind a tiny pilot boat. Sherlock Holmes welcomed her with the easy courtesy for which he was remarkable, and, having closed the door and bowed her into an armchair, he looked her over in the minute and yet abstracted fashion which was peculiar to him.

“Do you not find,” he said, “that with your short sight it is a little trying to do so much typewriting?”

“I did at first,” she answered, “but now I know where the letters are without looking.” Then, suddenly realizing the full purport of his words, she gave a violent start and looked up, with fear and astonishment upon her broad, good-humoured face. “You’ve heard about me, Mr. Holmes,” she cried, “else how could you know all that?”

“Never mind,” said Holmes, laughing; “it is my business to know things. Perhaps I have trained myself to see what others overlook. If not, why should you come to consult me?”