P.S.—Please on no account think that it cost me any great trouble to obtain this information. On the very morning of the crime, while M. Filleul was pursuing his examination before a few privileged persons, I had the fortunate inspiration to glance at the runaway’s cap, before the sham flyman came to change it. The hatter’s name was enough, as you may imagine, to enable me to find the clue that led to the identification of the purchaser and his address. The next morning, Ganimard called at 36, Rue Marbeuf. After questioning the concierge, he made him open the door of the ground-floor flat on the right, a very comfortable apartment, elegantly furnished, in which, however, he discovered nothing beyond some cinders in the fireplace. Two friends had come, four days earlier, to burn all compromising papers. But, just as he was leaving, Ganimard passed the postman, who was bringing a letter for M. de Vaudreix. That afternoon, the public prosecutor was informed of the case and ordered the letter to be given up. It bore an American postmark and contained the following lines, in English: DEAR SIR: I write to confirm the answer which I gave your representative. As soon as you have M. de Gesvres’s four pictures in your possession, you can forward them as arranged. You may add the rest, if you are able to succeed, which I doubt. An unexpected business requires my presence in Europe and I shall reach Paris at the same time as this letter. You will find me at the Grand Hôtel. Yours faithfully, EPHRAIM B. HARLINGTON. That same day, Ganimard applied for a warrant and took Mr. E. B. Harlington, an American citizen, to the police-station, on a charge of receiving and conspiracy. Thus, within the space of twenty-four hours, all the threads of the plot had been unraveled, thanks to the really unforeseen clues supplied by a schoolboy of seventeen. In twenty-four hours, what had seemed inexplicable became simple and clear. In twenty-four hours, the scheme devised by the accomplices to save their leader was baffled; the capture of Arsène Lupin, wounded and dying, was no longer in doubt, his gang was disorganized, the address of his establishment in Paris and the name which he assumed were known and, for the first time, one of his cleverest and most carefully elaborated feats was seen through before he had been able to ensure its complete execution.