four in the morning
She felt at last that if she could only hear the master going upstairs to bed , she might go to sleep . But though she listened hard as she lay there in the oppressive dark , she heard not another sound so long as she kept awake , and that was for some time , she thought . She did get off at last and had been asleep she knew not how long when she awoke drowsily with a confused impression that the front door had been shut again . How late it was she could but guess -- about three or four in the morning her instinct told her . But then came sleep again and in the morning the last part of her recollections was a little uncertain . At breakfast the master was as silently formidable as ever and he never said a word about his visitor . When Mary went to the top floor later the papers were off the doors and the keys replaced .