Dr. Harpe quickly demonstrated that she was easily the best dancer in the room, and there was no dearth of partners after the first awe of her had worn off, but her satisfaction in her night of triumph was not complete until Van Lennop's name was upon her programme. Essie Tisdale, busy elsewhere, had her first glimpse of the ballroom where Van Lennop claimed his dance. She grew white even to her lips, and her knees shook unaccountably beneath her as she watched Dr. Harpe glide the length of the room in Van Lennop's arms. The momentary pain she felt in her heart had the poignancy of an actual stab. It was so--so unexpected; he had so unequivocally ranged himself upon her side, he had seen so plainly Dr. Harpe's illy-concealed venom and resented it in his quiet way, as she had thought, that this seemed like disloyalty, and in the first shock of bewilderment and pain Essie Tisdale was conscious only that the one person in all the world upon whom she had felt she could count was being taken from her. Van Lennop had told her of his invitation in amusement and later had remarked carelessly that he might accept, but apparently had given it no further thought. Even in her unhappiness the girl was fair to her merciless enemy. She looked well--far, far more attractive than Essie would have believed possible, softer, more feminine and--more dangerous. Van Lennop was human; and, after all, as she was forced to recognize more and more fully, she was only the pretty biscuit-shooter of the Terriberry House. Essie Tisdale pushed the swinging doors from her with a shaking hand and managed somehow to get back into the kitchen where, as she thought, with a strange, new bitterness, she belonged. Van Lennop did not leave Dr. Harpe when the waltz was done, but seated himself beside her, first parting the curtain that she might get the air and showing a solicitude for her comfort so different from the cold, impersonal courtesy of months that her heart beat high with triumph. Verily, this propitious beginning was all she needed and, she told herself again, was all she asked. While she believed in herself and her personal charm when she chose to exercise it, Van Lennop's tacit recognition of it brightened her eyes and softened her face into smiling curves of happiness.