At last Mrs. Underwood brought up her son and introduced him. He was a tall, dark, well-grown young fellow, who might have been handsome but for a look of gloomy sulkiness which made his face repulsive. He muttered something indistinguishable and held out his arm, and Margaret, understanding it as an invitation to dance, mechanically rose, and allowed herself to be conducted to the ballroom. She made one or two remarks to which he never replied, and after pushing her once or twice round the room in as perfunctory a manner as if he were moving a table, watching the door over her head, meanwhile, with an attention which made him perpetually lose the step, he suddenly dropped her a little way from her former seat, on which she was glad to take refuge. She thought she must have made a worse figure on the floor than sitting down, and then a terrible fear rushed over her like a cold chill. Was there something very much amiss with her appearance? Had anything very shocking happened to her gown? She looked at it furtively; but just then the bustle of a late arrival diverted her thoughts a little, as a short, plump, black-eyed girl came laughing in, followed by a quiet, middle-aged lady, and a rather bashful-looking young man. Margaret thought her only rather pretty, not knowing that she was Miss Kitty Chester, the beauty of Boston for the past two seasons; however, she did observe that she had the most gorgeous gown, the biggest nosegay, and the highest spirits in the room. She hastened up to Mrs. Underwood, with an effusive greeting, which that lady seemed trying, not quite successfully, to return in kind. Half of the girls in the room, and most of the men, gathered round her in a moment; and a confused rattle of lively small talk arose, of which Margaret could make out nothing. She noticed, however, that the other girls, many of them momentarily deserted, appeared to regard the sensation with something of a disparaging air, and she heard one of them say, that it was a little too bad, even for Kitty Chester. What "it" might be remained a mystery, but there was no doubt that it contributed amazingly to the success of Mrs. Underwood's dance, which went on, Margaret thought, with redoubled zest, for all but herself; nor, indeed, did Ralph Underwood appear enlivened, for she caught a glimpse of him across the room, sulkier than ever. To her surprise, as he looked her way, a sort of satisfaction, it could not be called pleasure, suddenly dawned on his face. Surely she could never be the cause! And then for the first time she perceived that someone was standing behind her; and, as one is apt to do in such a consciousness, she turned sharply and suddenly around, the confusion which came too late to check her movement coloring her face. It was a relief to find that it was a very insignificant person on whom her glance fell, a small, plain man of indefinite age, who looked, as the girls phrase it, "common." He was