one o'clock
`` It could not have been more than twenty minutes after twelve , as it was twenty-five minutes after twelve when my cousin went to her room , and this was about five minutes earlier . '' `` Can you state whether or not he left his room within the next half-hour ? '' `` I know that he did not , '' she replied . `` I can testify that he remained in his room until after one o'clock . After my cousin left I discovered that the moon was just rising , and the view across the Hudson being extremely beautiful , as well as novel to me , I extinguished the light in my room and sat down by the open window to enjoy it . I heard Mr. Scott stepping quietly about his room for a few moments ; then all was still . I sat for some time admiring the scenery , until I was aroused by hearing him pacing back and forth like a person in deep thought .