our man, Watson! Come along! We'll have a good look at him, if we can do no more."
At that instant I was aware of a bushy black beard and a pair of piercing eyes turned upon us through the side window of the cab. Instantly the trapdoor at the top flew up, something was screamed to the driver, and the cab flew madly off down Regent Street. Holmes looked eagerly round for another, but no empty one was in sight. Then he dashed in wild pursuit amid the stream of the traffic, but the start was too great, and already the cab was out of sight.
"There now!" said Holmes bitterly as he emerged panting and white with vexation from the tide of vehicles. "Was ever such bad luck and such bad management, too? Watson, Watson, if you are an honest man you will record this also and set it against my successes!"
"Who was the man?"
"I have not an idea."
"A spy?"
"Well, it was evident from what we have heard that Baskerville has been very closely shadowed by someone since he has been in town. How else could it be known so quickly that it was the Northumberland Hotel which he had chosen? If they had followed him the first day I argued that they would follow him also the second. You may have observed that I twice strolled over to the window while Dr. Mortimer was reading his legend."
"Yes, I remember."
"I was looking out for loiterers in the street, but I saw none. We are dealing with a clever man, Watson. This matter cuts very deep, and though I have not finally made up my mind whether it is a benevolent or a malevolent agency which is in touch with us, I am conscious always of power and design. When our friends left I at once followed them in the hopes of marking down their invisible attendant. So wily was he that he had not trusted himself upon foot, but he had availed himself of a cab so that he could loiter behind or dash past them and so escape their notice. His method had the additional advantage that if they were to take a cab he was all ready to follow them. It has, however, one obvious disadvantage."
"It puts him in the power of the cabman."
"Exactly."
"What a pity we did not get the number!"
"My dear Watson, clumsy as I have been, you surely do not seriously imagine that I neglected to get the number? No. 2704 is our man. But that is no use to us for the moment."
"I fail to see how you could have done more."
"On observing the cab I should have instantly turned and walked in the other direction. I should then at my leisure have hired a second cab and followed the first at a respectful distance, or, better still, have driven to the Northumberland Hotel and waited there. When our unknown had followed Baskerville home we should have had the opportunity of playing his own game upon himself and seeing where he made for. As it is, by an indiscreet eagerness, which was taken advantage of with extraordinary quickness and energy by our opponent, we have betrayed ourselves and lost our man."
We had been sauntering slowly down Regent Street during this conversation, and Dr. Mortimer, with his companion, had long vanished in front of us.
"There is no object in our following them," said Holmes. "The shadow has departed and will not return. We must see what further cards we have in our hands and play them with decision. Could you swear to that man's face within the cab?"
"I could swear only to the beard."
"And so could I—from which I gather that in all probability it was a false one. A clever man upon so delicate an errand has no use for a beard save to conceal his features. Come in here, Watson!"
He turned into one of the district messenger offices, where he was warmly greeted by the manager.
"Ah, Wilson, I see you have not forgotten the little case in which I had the good fortune to help you?"
"No, sir, indeed I have not. You saved my good name, and perhaps my life."
"My dear fellow, you exaggerate. I have some recollection, Wilson, that you had among your boys a lad named Cartwright, who showed some ability during the investigation."
"Yes, sir, he is still with us."
"Could you ring him up?—thank you! And I should be glad to have change of this five-pound note."
A lad of fourteen, with a bright, keen face, had obeyed the summons of the manager. He stood now gazing with great reverence at the famous detective.
"Let me have the Hotel Directory," said Holmes. "Thank you! Now, Cartwright, there are the names of twenty-three hotels here, all in the immediate neighbourhood of Charing Cross. Do you see?"
"Yes, sir."
"You will visit each of these in turn."
"Yes, sir."
"You will begin in each case by giving the outside porter one shilling. Here are twenty-three shillings."
"Yes, sir."
"You will tell him that you want to see the waste-paper of yesterday. You will say that an important telegram has miscarried and that you are looking for it. You understand?"
"Yes, sir."
"But what you are really looking for is the centre page of The Times with some holes cut in it with scissors. Here is a copy of The Times . It is this page. You could easily recognise it, could you not?"
"Yes, sir."
"In each case the outside porter will send for the hall porter, to whom also you will give a shilling. Here are twenty-three shillings. You will then learn in possibly twenty cases out of the twenty-three that the waste of the day before has been burned or removed. In the three other cases you will be shown a heap of paper and you will look for this page of The Times among it. The odds are enormously against your finding it. There are ten shillings over in case of emergencies. Let me have a report by wire at Baker Street before evening. And now, Watson, it only remains for us to find out by wire the identity of the cabman, No. 2704, and then we will drop into one of the Bond Street picture galleries and fill in the time until we are due at the hotel."
V. Three Broken Threads
Sherlock Holmes had, in a very remarkable degree, the power of detaching his mind at will. For two hours the strange business in which we had been involved appeared to be forgotten, and he was entirely absorbed in the pictures of the modern Belgian masters. He would talk of nothing but art, of which he had the crudest ideas, from our leaving the gallery until we found ourselves at the Northumberland Hotel.
"Sir Henry Baskerville is upstairs expecting you," said the clerk. "He asked me to show you up at once when you came."
"Have you any objection to my looking at your register?" said Holmes.
"Not in the least."
The book showed that two names had been added after that of Baskerville. One was Theophilus
