He lived in the house above the shop, and had done so for about two years; previously he had held a like position in a more modest establishment. His bed-room, which had to serve him as sitting-room also during his free hours, gave indications of a taste not ordinarily found in chemists' assistants. On the walls were several engravings of views in Rome, ancient and modern; and there were two bookcases filled with literature which had evidently known the second-hand stall,--most of the Latin poets, a few Italian books, and some English classics. Not a trace anywhere of the habits and predilections not unfairly associated with the youth of the shop, not even a pipe or a cigar-holder. It was while sitting alone here one evening, half musing, half engaged in glancing over the advertisements in a paper two days old, that the assistant had been attracted by the insertion just quoted. He read and re-read it, became more thoughtful, sighed slightly. Then he moved to the table and took some note-paper out of a writing-case. Still he seemed to be in doubt, hesitated in pressing a pen against his thumb-nail, was on the point of putting the note-paper away again. Ultimately, however, he sat down to write. He covered four pages with a letter, which he then proceeded deliberately to correct and alter, till he had cut it down by about half. Then came another period of doubt before he decided to make a fair copy. But it was finally made, and the signature at the foot was: Julian Casti. He went out at once to the post. Two days later he received a reply, somewhat longer than his own epistle. The writer was clearly keeping himself in a tentative attitude. Still, he wrote something about his own position and his needs. He was a teacher in a school in South London, living in lodgings, with his evenings mostly unoccupied. His habits, he declared, were Bohemian. Suppose, by way of testing each other's dispositions, they were to interchange views on some book with which both were likely to be acquainted: say, Keats's poems? In conclusion, the "O. W." of the advertisement signed himself Osmond Waymark. The result was that, a week after, Casti received an invitation to call on Waymark, at the latter's lodgings in Walcot Square, Kennington. He arrived on a Saturday evening, just after eight o'clock. The house he sought proved to be one of very modest appearance; small, apparently not too clean, generally uninviting. But a decent-looking woman opened the door, and said that Mr. Waymark would be found in response to a knock at the first-floor front. The visitor made his way up the dark, narrow stair-case, and knocked as bidden. A firm voice summoned him to enter.