ten o'clock
As for Thomas , he went around dejected and sad , and I saw the detective watching him closely at dinner . Even now I wonder -- what did Thomas know ? What did he suspect ? At ten o'clock the household had settled down for the night . Liddy , who was taking Mrs. Watson 's place , had finished examining the tea-towels and the corners of the shelves in the cooling-room , and had gone to bed . Alex , the gardener , had gone heavily up the circular staircase to his room , and Mr. Jamieson was examining the locks of the windows . Halsey dropped into a chair in the living-room , and stared moodily ahead .