"Oh, I never remember anything I say in the morning," said Lady Sophia airily. "You are so stupid, Prelice, you always take one at the foot of the letter. You won't come with me. Oh, very well. Help me into the brougham, you horrid boy. I believe you'll fall in love with Mona, and give me a criminal for a niece." This was Lady Sophia's parting shot, and when her motor-brougham spun towards the first turning out of the square, Prelice laughed long and loudly. His aunt was nearer the truth than she had been the whole evening, although she was far from suspecting it. It never entered her elderly head that a man of the world, such as her nephew certainly was, would fall in love on the spur of the moment. "And I should not have suspected myself of such lunacy either," thought his lordship as he turned in the direction of Half-Moon Street to procure domino and mask for the ball. The street before Alexander Mansions was filled with carriages and motors and four-wheelers and hansoms, together with a crowd of onlookers, who passed remarks, complimentary and otherwise, on the many guests of Mrs. Rover. The mansions themselves were palatial and splendid, with a royal flight of broad marble steps to the main entrance. Prelice, shuffling on his domino and assuming his mask, climbed these, to find himself with other revellers in a vast hall, with two staircases ascending on either side at the farther end, and between them two lifts, the cages of which soared and sank with parties of pleasure-seekers. Prelice delivered his rainbow-hued ticket of invitation to a gorgeously uniformed commissionaire, and took his time in climbing the long stairs. Many other people did the same, instead of waiting for the lifts, but, as all were masked and cloaked, the young man could recognise no one. As Shepworth had stated, Mr. and Mrs. Dolly Rover occupied the whole of the third floor--that is, they tenanted two flats which faced each other, and the outer doors of these, opening on to a spacious landing, had been removed from their hinges. Thus the guests could pass easily from one flat to the other, and the landing between was a nest of greenery and roses, like the hanging gardens of Babylon. The flats themselves had wide corridors, spacious rooms, and lofty ceilings, so they were capable of receiving a large number of guests. On this occasion they were crowded, and it would seem as though Mrs. Rover had invited everyone on her visiting-list. And there may have been others, not set down on that list, since the masks and dominos prevented recognition.