eleven o'clock
This was late in the evening , and soon after he excused himself to those around him , saying it was not often that he dissipated like this , and as he was growing tired he must say good-night . The next morning Charles found him looking very pale and worn , with a bad pain in his head . He had rested badly , he said , and would have his coffee in bed , after which Charles was to leave him alone and not come back until he rang for him , as he might possibly fall asleep . It was very late that morning when the family breakfasted , and as they lingered around the table , discussing the events of the previous night , it was after eleven o'clock when at last Mrs. Tracy went up to her room . As she ascended the stairs to the upper hall , she caught a glimpse of Harold disappearing through a door at the lower end of the hall , evidently with the intention of going down the back stairway and making his exit from the house by the rear door , rather than the front . Mrs. Tracy knew that he was sometimes sent by his grandmother on some errand to Arthur , and giving no further thought to the matter went on to her own room , which her maid had put in order . All the paraphernalia of last night 's toilet were put away , diamonds and all .