This second delay was due to the fact that his presence upon the spot was required by a plain-clothes man who took over the investigation of the collision from the patrolman on the post. To Mr. Goldsborough, inwardly fuming but outwardly calm and indifferent, it seemed that the plain-clothes person took an unreasonably long time for his inquiries touching on the accident. At length, with apologies for detaining him, the headquarters man--now suddenly become accommodating where before he had been officially exact and painstaking in his inquisition into causes and circumstances--personally hailed another taxicab for Mr. Goldsborough and sent him upon his way. But, Mr. Goldsborough's chapter of petty troubles was not yet ended; for the driver of the second taxi stupidly drove to the wrong address, landing his fare at a house on West Sixty-third Street, clear across Central Park and nearly halfway across town from Mrs. Hadley-Smith's home. So, what with first one thing and then another, eleven o'clock had come and gone before the indignant passenger finally was set down at his proper destination. We go back to nine-thirty, which was the hour set and appointed for inaugurating the All Fools' Day party. Nine-thirty being the hour, very few of the prospective celebrants arrived before ten. But by ten, or a little later, most of them were assembled in the big twin drawing-rooms on the first floor of the Hadley-Smith establishment. These two rooms, with the study behind them and the wide reception hall that ran alongside them, took up the most of the first-floor ground space of the town house. As the first arrivals noted, they had been stripped of furniture for dancing. One room was quite empty, save for decorations; the other contained only a table piled with favours. Even the chairs had been removed, leaving clear spaces along the walls. It was not such a very large party as parties go, for Mrs. Hadley-Smith had a reputation for doing her entertaining on a small but an exceedingly smart scale. All told, there were not more than fifty on hand--and accounted for--by ten o'clock. A good many had come in costume--as zanies, Pantaloons, witches, Pierrots, Columbines, clowns and simples. For those who wore evening dress the hostess had provided a store of dunce caps and dominos of gay colours. Nearly everybody present already knew nearly everybody else. There were only five or six guests from out of town, and of these Mme. Josephine Ybanca, wife of the great South American diplomat, and Miss Evelyn Ballister, sister of the distinguished Western statesman, were by odds the handsomest. Of women there were more than men; there usually are more women than men in evidence at such affairs. At about ten o'clock, Mrs. Hadley-Smith stood out on the floor under the arch connecting but not exactly separating the joined rooms.