two o'clock
It was long after twelve o'clock and he fell to thinking what he should do with himself for the rest of the night . It was impossible to walk about till morning and he determined to return to Carlton House Terrace , let himself in with his latch key and slip upstairs to his room . If by any chance she had not retired for the night and he chanced to meet her on the stairs or in the hall then the confession must be made forthwith . It was after two o'clock when he reached the house . He opened the door with his key and closing it softly , crossed the hall and went up the stairs . One of the hall lamps had been left burning , evidently for him : a lamp was burning also , in the corridor . He switched on the electric light in his room and closed the door .