midnight
Harker was the only one who had any result , and we are in great hopes that his clue may be an important one . Before going to bed I went round to the patient 's room and looked in through the observation trap . He was sleeping soundly , and his heart rose and fell with regular respiration . This morning the man on duty reported to me that a little after midnight he was restless and kept saying his prayers somewhat loudly . I asked him if that was all ; he replied that it was all he heard . There was something about his manner so suspicious that I asked him point blank if he had been asleep . He denied sleep , but admitted to having `` dozed '' for a while .