midnight
He did not allude to the subject again by so much as a tender glance , and Betty , who knew the power of man to exasperate , appreciated his consideration . She wondered how deep his actual knowledge of women went , how much of his success with them he owed to the strong manly instincts springing from a subsoil of sound common-sense which had carried him safely past so many of the pitfalls of life . Nor did his high spirits wane . He stayed out of doors , in the forest or on the lake , until midnight , and was up again at five in the morning . Betty was fond of fresh air and exercise , but she had so much of both during the two days of his visit that she went to bed on the night of his departure with a sense of being drugged with ozone and battered with energy . The next day she did not rise until ten , and was still enjoying the dim seclusion of her room when Sally tapped and entered . Miss Carter looked nervous , and her usually sallow cheeks were flushed .