'I beg to inform you that I am a manufacturer of imitation diamonds, and through extensive advertising succeeded in accumulating a fortune of many millions. I was in Europe when the necklace was found, and had in my possession over a thousand imitation diamonds of my own manufacture. It occurred to me that here was the opportunity of the most magnificent advertisement in the world. I saw the necklace, received its measurements, and also obtained photographs of it taken by the French Government. Then I set my expert friend Martin Dubois at work, and, with the artificial stones I gave him, he made an imitation necklace so closely resembling the original that you apparently do not know it is the unreal you have in your possession. I did not fear the villainy of the crooks as much as the blundering of the police, who would have protected me with brass-band vehemence if I could not elude them. I knew that the detectives would overlook the obvious, but would at once follow a clue if I provided one for them. Consequently, I laid my plans, just as you have discovered, and got Martin Dubois up from Rouen to carry the case I gave him down to Havre. I had had another box prepared and wrapped in brown paper, with my address in New York written thereon. The moment I emerged from the auction room, while my friend the cowboy was holding up the audience, I turned my face to the door, took out the genuine diamonds from the case and slipped it into the box I had prepared for mailing. Into the genuine case I put the bogus diamonds. After handing the box to Dubois, I turned down a side street, and then into another whose name I do not know, and there in a shop with sealing wax and string did up the real diamonds for posting. I labelled the package "Books", went to the nearest post office, paid letter postage, and handed it over unregistered as if it were of no particular value. After this I went to my rooms in the Grand Hotel where I had been staying under my own name for more than a month. Next morning I took train for London, and the day after sailed from Liverpool on the _Lucania_. I arrived before the _Gascoigne_, which sailed from Havre on Saturday, met my box at the Customs house, paid duty, and it now reposes in my safe. I intend to construct an imitation necklace which will be so like the genuine one that nobody can tell the two apart; then I shall come to Europe and exhibit the pair, for the publication of the truth of this matter will give me the greatest advertisement that ever was.