“That will do,” said Holmes. “As to the letters,” he continued, glancing over them, “they are very commonplace. Absolutely no clew in them to Mr. Angel, save that he quotes Balzac once. There is one remarkable point, however, which will no doubt strike you.”

“They are typewritten,” I remarked.

“Not only that, but the signature is typewritten. Look at the neat little ‘Hosmer Angel’ at the bottom. There is a date, you see, but no superscription except Leadenhall Street, which is rather vague. The point about the signature is very suggestive —in fact, we may call it conclusive.”

“Of what?”

“My dear fellow, is it possible you do not see how strongly it bears upon the case?”

“I cannot say that I do unless it were that he wished to be able to deny his signature if an action for breach of promise were instituted.”

“No, that was not the point. However, I shall write two letters, which should settle the matter. One is to a firm in the City, the other is to the young lady’s stepfather, Mr. Windibank, asking him whether he could meet us here at six o’clock tomorrow evening. It is just as well that we should do business with the male relatives. And now, Doctor, we can do nothing until the answers to those letters come, so we may put our little problem upon the shelf for the interim.”

I had had so many reasons to believe in my friend’s subtle powers of reasoning and extraordinary energy in action that I felt that he must have some solid grounds for the assured and easy demeanour with which he treated the singular mystery which he had been called upon to fathom. Once only had I known him to fail, in the case of the King of Bohemia and of the Irene Adler photograph; but when I looked back to the weird business of ‘The Sign of Four’, and the extraordinary circumstances connected with ‘A Study in Scarlet’, I felt that it would be a strange tangle indeed which he could not unravel.

I left him then, still puffing at his black clay pipe, with the conviction that when I came again on the next evening I would find that he held in his hands all the clews which would lead up to the identity of the disappearing bridegroom of Miss Mary Sutherland.

A professional case of great gravity was engaging my own attention at the time, and the whole of next day I was busy at the bedside of the sufferer. It was not until close upon six o’clock that I found myself free and was able to spring into a hansom and drive to Baker Street, half afraid that I might be too late to assist at the denouement of the little mystery. I found Sherlock Holmes alone, however, half asleep, with his long, thin form curled up in the recesses of his armchair. A formidable array of bottles and test-tubes, with the pungent cleanly smell of hydrochloric acid, told me that he had spent his day in the chemical work which was so dear to him.

“Well, have you solved it?” I asked as I entered.

“Yes. It was the bisulphate of baryta.”

“No, no, the mystery!” I cried.

“Oh, that! I thought of the salt that I have been working upon. There was never any mystery in the matter, though, as I said yesterday, some of the details are of interest. The only drawback is that there is no law, I fear, that can touch the scoundrel.”

“Who was he, then, and what was his object in deserting Miss Sutherland?”

The question was hardly out of my mouth, and Holmes had not yet opened his lips to reply, when we heard a heavy footfall in the passage and a tap at the door.

“This is the girl’s stepfather, Mr. James Windibank,” said Holmes. “He has written to me to say that he would be here at six. Come in!”

The man who entered was a sturdy, middle-sized fellow, some thirty years of age, clean-shaven, and sallow-skinned, with a bland, insinuating manner, and a pair of wonderfully sharp and penetrating gray eyes. He shot a questioning glance at each of us, placed his shiny top-hat upon the sideboard, and with a slight bow sidled down into the nearest chair.

“Good-evening, Mr. James Windibank,” said Holmes. “I think that this typewritten letter is from you, in which you made an appointment with me for six o’clock?”

“Yes, sir. I am afraid that I am a little late, but I am not quite my own master, you know. I am sorry that Miss Sutherland has troubled you about this little matter, for I think it is far better not to wash linen of the sort in public. It was quite against my wishes that she came, but she is a very excitable, impulsive girl, as you may have noticed, and she is not easily controlled when she has made up her mind on a point. Of course, I did not mind you so much, as you are not connected with the official police, but it is not pleasant to have a family misfortune like this noised abroad. Besides, it is a useless expense, for how could you possibly find this Hosmer Angel?”

“On the contrary,” said Holmes quietly; “I have every reason to believe that I will succeed in discovering Mr. Hosmer Angel.”

Mr. Windibank gave a violent start and dropped his gloves. “I am delighted to hear it,” he said.

“It is a curious thing,” remarked Holmes, “that a typewriter has really quite as much individuality as a man’s handwriting. Unless they are quite new, no two of them write exactly alike. Some letters get more worn than others, and some wear only on one side. Now, you remark in this note of yours, Mr. Windibank, that in every case there is some little slurring over of the ‘e,’ and a slight defect in the tail of the ‘r.’ There are fourteen other characteristics, but those are the more obvious.”

“We do all our correspondence with this machine at the office, and no doubt it is a little worn,” our visitor answered, glancing keenly at Holmes with his bright little eyes.

“And now I will show you what is really a very interesting study, Mr. Windibank,” Holmes continued. “I think of writing another little monograph some of these days on the typewriter and its relation to crime. It is a subject to which I have devoted some little attention. I have here four letters which purport to come from the missing man. They are all typewritten. In each case, not only are the ‘e’s’ slurred and the ‘r’s’ tailless, but you will observe, if you care to use my magnifying lens, that the fourteen other characteristics to which I have alluded are there as well.”

Mr. Windibank sprang out of his chair and picked up his hat. “I cannot waste time over this sort of fantastic talk, Mr. Holmes,” he said. “If you can catch the man, catch him, and let me know when you have done it.”

“Certainly,” said Holmes, stepping over and turning the key in the door. “I let you know, then, that I have caught him!”

“What! where?” shouted Mr. Windibank, turning white to his lips and glancing about him like a rat in a trap.

“Oh, it won’t do—really it won’t,” said Holmes suavely. “There is no possible getting out of it, Mr. Windibank. It is quite too transparent, and it was a very bad compliment when you said that it was impossible for me to solve so simple a question. That’s right! Sit down and let us talk it over.”

Our visitor collapsed into a chair, with a ghastly face and a glitter of moisture on his brow. “It—it’s not actionable,” he stammered.

“I am very much afraid that it is not. But between ourselves, Windibank, it was as cruel and selfish and heartless a trick in a petty way as ever came before me. Now, let me just run over the course of events, and you will contradict me if I go wrong.”

The man sat huddled up in his chair, with his head sunk upon his breast, like one who is utterly crushed. Holmes stuck his feet up on the corner of the mantelpiece and, leaning back with his hands in his pockets, began talking, rather to himself, as it seemed, than to us.

“The man married a woman very much older than himself for her money,” said he, “and he enjoyed the use of the money of the daughter as long as she lived with them. It was a considerable sum, for people in their position, and the loss of it would have made a serious difference. It was worth an effort to preserve it. The daughter was of a good, amiable disposition, but affectionate and warm-hearted in her ways, so that it was evident that with her fair personal advantages, and her little income, she would not be allowed to remain single long. Now her marriage would mean, of course, the loss of a hundred a year, so what does her stepfather do to prevent it? He takes the obvious course of keeping her at home and forbidding her to seek the company of people of her own age. But soon he found that that would not answer forever. She became restive, insisted upon her rights, and finally announced her positive intention of going to a certain ball. What does her clever stepfather do then? He conceives an idea more creditable to his head than to his heart. With the connivance and assistance of his wife he disguised himself, covered those keen eyes with tinted glasses, masked the face with a moustache and a pair of bushy whiskers, sunk that clear voice into an insinuating whisper, and doubly secure on account of the girl’s short sight, he appears as Mr. Hosmer Angel, and keeps off other lovers by making love himself.”