In the evening, however, everything was artificial and in keeping with the gaslight. The ladies were conscious of their toilets, conscious of themselves, looking for admiration rather than hearty enjoyment. Even the older boys and girls, who had been joyous children in the morning, were now small parodies of fashionable men and women! A band of hired performers twanged out the hackneyed dancing music then in vogue, going over their small "repertoire" with wearisome repetition. People danced at first because it was the thing to do, and not from any inspiration from the melody. As the evening wore on, Sibley, who had been drinking quite freely, tried to introduce, as far as possible, the excitement of a revel, calling chiefly for swift waltzes and gallops through which he and Ida whirled in a way that made people's heads dizzy. Miss Burton, after going through a quadrille with Stanton early in the evening, had declined to dance any more. She did not feel very well, she explained to Van Berg as he sought her for the next form; but he imagined that she early foresaw that Sibley and others, and among them even Stanton, were inclined to give the evening a character that was not to her taste. As Ida had made herself somewhat prominent in inaugurating the "ball," as Sibley took pains to term it on all occasions, Van Berg, as a part of his tactics to win the beauty's good-will, tried at first to make the affair successful. He danced with others, and twice sought her hand; but in each case she rather indifferently told him that she was engaged. He would not have sought her as a partner after his first rebuff had he not imagined, from occasional and furtive glances, that she was not as indifferent as she seemed. Early in the evening it occurred to him that her slightly reckless manner was assumed, but he saw that she was abandoning herself to the growing excitement of the dance, as Sibley, her most frequent partner, and others, were to the stronger excitement of liquor. Observant mothers called away their daughters. Ladies, in whom the instincts of true refined womanhood were in the ascendancy, looked significantly at each other, and declined further invitations. Van Berg had also withdrawn, but with his disposition to watch manifestations of character in general, and of one present in particular, he still stood at a parlor window looking on. The band had just struck up a livelier waltz than usual, and Ida and Sibley were whirling through the wide apartment as if treading on air; but when, a few moments later, they circled near where he stood, he saw upon the young man's face an expression of earthiness and grossness that was anything but ethereal. Indeed so unmistakably wanton was the look which Sibley bent upon his companion, whose heaving bosom he clasped against his won, that the artist frowned darkly at him, and felt his hand tingling to strike the fellow a blow.