about one o'clock
`` Oh yes , I shall . When I 've been so troubled as that I must have a cup of tea . '' Mr. Grey was often troubled , and as a consequence Dolly was called up for consultations in the middle of the night . At about one o'clock there came the well-known knock at Dolly 's door and the usual invitation . Would she come into her father 's room for a few minutes ? Then her father trotted back to his bed , and Dolly , of course , followed him as soon as she had clothed herself decently . `` Why did n't you tell me ? ''