eleven o'clock
All the girls and most of the boys were excellent dancers , too , and Bob was not allowed to beg off . Frances Martin , the last girl one would have named , had taught a dancing class in her home town with great success and she volunteered to lead Bob . To his surprise , the boy found he liked the music and movement and before the evening was over he was in a fair way to become a good dancer . The party broke up promptly at eleven o'clock , and a few minutes later the whir of the last motor bearing home the departing guests died away . There was a natural lingering to `` talk things over , '' but by twelve the house was silent and dark . Betty had just fairly dozed off when some one woke her by shaking her gently . `` Betty !