"When you first came to me, Mr. Warburton, and spoke to me about this business," began Byrne after a few preliminary puffs, "I was more surprised than I cared to let you see. And when you told me what it was that you wanted me to do, I was still more surprised. And well I might be, as you will hear presently. You came to me, Mr. Warburton, in the first place, because you thought that there might be a faint possibility of my being able to assist you to discover the whereabouts of Max Jacoby. I was able to assist you in a way that you little dreamt of. My brother, who is two years older than I am, was originally a sergeant in the detective police. He retired some years ago, and he now keeps a little country tavern in the neighbourhood of Dorking. I told my brother what I wanted; he gave me a note to a particular friend of his who is still in the force, and it was through the kindness of this latter gentleman that I was enabled to inform you that our friend Mr. Max lived here, under this very roof, in Spur Alley. Having obtained that information for you, I naturally concluded that my task was at an end; but when you told me what further you wanted from me, that opened up an entirely fresh phase of the question."

Here Mr. Byrne paused to stir his grog and refresh himself with a hearty drink.

"The point urged by both of you," resumed Byrne, "was your belief that Max Jacoby was the murderer of Paul Stilling; and the question you put before me was: By what means is it possible to bring his guilt home to him? Gentlemen, what method of procedure I might have adopted under different circumstances in order to find an answer to your question I cannot, of course, say, but the one which I did adopt had its origin in a very peculiar occurrence, which I will presently explain to you. My plan was this: to take lodgings in this house--my daughter and I. To make the acquaintance of Van Duren. To invite him to tea or supper, in order that he might have an opportunity of associating with Miriam, who, on her part, was to do her best to fascinate him--to make him fall in love with her, and, if possible, to propose to her. Of this scheme Miriam was the hinge. Everything depended upon her--upon her good looks and powers of fascination. But knowing the sort of man I had to deal with, I determined to smooth for him still further the road I wanted him to travel. With this end in view, I led Van Duren on to believe that I was rich, and I caused to be drawn up in due form a fictitious will, in which I bequeathed fifteen thousand pounds to my daughter, and of which I made Van Duren himself one of the executors. The bait took, as I expected it would take. Van Duren, smitten already by my daughter's good looks, was conquered entirely when he found that she was also an heiress. A few evenings ago he fell on his knees before her and implored her to marry him. Miriam, by my instructions, accepted him conditionally: he is to be a month on probation, and if at the end of that time she finds that she can like him sufficiently well, she is to accept him as her future husband. But before the month of probation shall have come to an end, the particular object which has necessitated all this scheming and preparation will, I trust, have been fully accomplished."

Mr. Byrne had allowed his cigar to go out while talking. He now proceeded to relight it. This done, he again paid his respects to the grog.

Both Ambrose Murray and Gerald were utterly puzzled. That Byrne should have allowed, and, by his own confession, encouraged, Van Duren to make love and propose to his daughter, was to them an altogether incomprehensible proceeding. They awaited his further revelations with impatience.

"You have certainly succeeded in exciting our curiosity, Mr. Byrne," said Gerald, "and I hope you won't send us away till you have thoroughly satisfied it."

"Never fear, sir. You shall have the whole history before you leave the room. With your permission, we will retrace our steps a little. I have already told you that I have a brother who was formerly a sergeant in the detective force. He held this position at the same time that I was confidential clerk to Mr. Frodsham. As both of you are aware, I happened to be in court on the very day that you, Mr. Murray, were tried for the murder of Paul Stilling. One of the chief witnesses at the trial was our friend, Mr. Max Jacoby. After my return to London, I called one evening to smoke a pipe with my brother, and in the course of conversation the Tewkesbury murder case cropped up. I told Dick, who likes to hear of such matters, all about the trial. Jacoby's name was mentioned, and I remember remarking to my brother that he had far more the look of a murderer than the man in the dock--meaning you, sir. Well, gentlemen, some three or four months, passed away, when, one day, I met my brother casually in the street. Says he to me, 'Peter, when next you come up to my crib, I can show you a bit of paper that may perhaps interest you a little--a bit of paper with some writing on it, I mean.'--'Is the writing by anybody that I know?' said I. 'It's a letter,' said he, 'and the signature to it is "Max Jacoby"--the name of the fellow, isn't it, who was a witness in the Tewkesbury murder case?' 'That's the name, sure enough,' replied I. 'But how did a letter signed by him come into your possession?' 'Oh, the fellow to whom it was addressed got into a little difficulty. I had to search his rooms, and I found this letter among a lot of other papers. I took a copy of it before handing over the original, as I thought it might interest you.' Well, gentlemen, I thought very little more of the matter, as, indeed, why should I? Dick, however, did not forget, and the next time I called on him he produced the letter. I read the letter, and looked upon the affair as one of those curious coincidences which so frequently happen in real life; but I speedily forgot all about it, and the chances are that I should never have thought about it again had not your visit to me brought all the old circumstances back to my mind. After that visit I made it my first business to go down to Dorking and see my brother. The question was, had he, after all these years, got the copy of Max Jacoby's letter still by him? Fortunately for us, Dick is one of those cautious souls who hardly ever destroy anything, and who have an almost superstitious reverence for any scrap of paper with writing on it. In short, gentlemen, the letter was still in existence. Dick gave it up to me without difficulty, and it is in my writing-desk at the present moment. Before reading the letter to you, I may just add that, having regard to my brother's great experience, I have taken the liberty of consulting him at each step of this affair. It is some pleasure to me to be able to say that he takes the same view of the contents of the letter that I take, and that he agrees with all that I have done up to the present time."

"You were quite right in consulting your brother, Mr. Byrne," said Murray. "It only proves still more clearly how thoroughly you have identified yourself with the case."

Byrne crossed the room, unlocked his writing-desk, and came back with the letter in his hand.

"The letter bears no date," said he, "but as it was found by my brother in the lodgings of the man to whom it was addressed only some three or four months after the murder--subsequent to which occurrence it was, in my opinion, written--the exact date is a matter of very minor consequence. The address given is simply, 'My old lodgings,' and as it was found without an envelope, there is no clue to the post-mark. But that, too, is a matter of little consequence. And now you shall hear what the letter says."