We soon passed Chancery Lane, and so lost one more 'bus. The pony drawing the greengrocer's cart was now almost touching our steps with his nose. Not a soul of those who alighted from the Chancery Lane 'bus came our way. I examined the Gray's Inn Road 'bus, but it contained only three women and a boy. Two hansoms now joined the procession, but the first carried an eye-glassed snob, and the other an officer in uniform. I was beginning to feel very puzzled when it suddenly occurred to me to prospect the greengrocer's cart, which hitherto I had scarcely more than glanced at. Two costers occupied the seat, but otherwise the cart was empty. The driver was a real unmistakable hall-marked coster, but his companion gave me a doubt. For one thing, he was smoking a cigar; for another, he held on to his seat in order to support himself; for a third, although he wore no collar, he had a remarkably white neck--for a coster. "There," said I, "is my man." I did not look at him again. There was no need. To kill time I bought a paper at the next corner, and diligently studied its contents, until we came to London Bridge, where I alighted, and transferred myself to a New Cross 'bus. I mounted to the top and began to scan the houses that we passed with the closest possible attention. It was not, however, until we left Tabard Street behind and had half traversed the Old Kent Road, that I discovered what I was looking for. This was a "double event"--so to speak. An apartment house and an undertaker's establishment, situated within easy walking distance of each other. Many a coffin shop did I see, and many an apartment house, but they were unhappily too separated for my purpose. The fortunate combination occurred between Astley Street and Ossary Road. First came the undertaker's shop, and then the apartment house. Nothing could have been more suitable. Opposite the latter I swung myself from the 'bus, and stepped upon the footpath. The greengrocer's cart passed me by some twenty yards at a smart trot, then slowed down to a walk. I strode up to the door of the apartment house, and rapped sharply on the knocker. It was a low, grimy, building, with many grimy windows, whose shuttered blinds had once been green, but now were grey with grease and dust. A card in either lower windows signified its calling: "Apartments to let!" The door was opened by a greasy-faced woman, whose coal black oily locks were crimped in curl-papers. I pushed past her into the hall, without so much as "by your leave," and shut the door behind me. I acted so, lest my shadower should suspect that I visited the house for the first time. The woman at once began to protest at the top of her voice, against my cavalier behaviour. But I cut her short with a sovereign, which she bit, in the fashion of her class, eyeing me the while as though she expected me to snatch it back again.