about three o'clock
It was growing dark before she realized that she would have to take a taxi or the Stuarts would be very much worried about her . `` Oh , Bab , where have you been ? We 've been frightfully worried , '' cried Ruth . `` Dad 's home , and he said his secretary told him you 'd left the office about three o'clock . '' `` I started to walk , and forgot how late it was , Ruth . '' Mr. Stuart , who had come into the hall in time to hear the conversation and noting how tired Bab looked , said : `` Come to dinner now , and Barbara can tell us things later . '' When dinner was over and they were seated around the library fire , Barbara turned to Mr. Stuart and said : `` I can tell you the name of the man who 's fighting you and Mr. Presby , Mr. Stuart .