"He and I became quite intimate. You see, I had been commissioned to attend to this diamond business, and to remain in Paris until it was done. I was to watch it through all its stages, and be sure that my mother's directions regarding the style of the setting were accurately followed. When all was finished, I was to pay the bill and bring the diamonds on to Rome, where the family would by that time be established. Well, I was a young fellow, and probably I was not so much cast down at the prospect of spending a month or two alone in Paris as you might suppose. But I doubt whether I should have attended to my ostensible business so faithfully as I actually did, had I not been so greatly taken with my little friend Rudolph. He and I twigged one another, as boys say, from the first. I used to sit and watch him work for hours at a time; and as he worked, he would talk; and very queer captivating talk a good deal of it was. He was a thorough artist and enthusiast, and seemed to care for nothing outside of his profession. He did not appear to me to be in the way of making much money, and it occurred to me that it might be acceptable were I, in an unobtrusive way, to introduce him to some wealthy customers. I knew few people in Paris; but there was a Mr. Birchmore, an American gentleman, staying at my hotel, with whom I had forgathered over a cup of coffee and a cigar once or twice: he was a handsome middle-aged man, with an atmosphere of refined affluence about him such as would have befitted a duke. Not a bit like your traditional Yankee; in fact, I'm not sure that I should have suspected him, if I hadn't seen his address--'Fifth Avenue, New York City, U.S.A.'--in the hotel register, about a week after my arrival. He was an agreeable man enough, though not at all the sort to take liberties with; however, I made up my mind that I would get him to Rudolph's on the first pretext that offered. "Well, I had an excellent pretext before long. Mr. Birchmore came into the café one afternoon, with rather an annoyed look, and made some inquiries of the waiter. François raised his eyebrows and shrugged his shoulders; there was some further conference, and then he and Mr. Birchmore began searching about the floor of the room. It presently transpired that he had lost a diamond out of his ring, which had contained three matched brilliants. It was nowhere to be found. "'I don't mind the loss of the stone itself,' said Mr. Birchmore at last, sitting down near my table; 'but it's one of a set, matched with great difficulty, and I'm afraid I may never replace it.'