seven o’clock
His manner of greeting me was more genial than usual . He began by informing me that the police had apprehended the man who , they believed , was guilty of the captain 's murder . `` There is one detail to be cleared up , '' he said . `` You told me the other night that it was shortly after seven o'clock when you heard the sounds of struggle in the room above you . You were somewhat excited at the time , and under similar circumstances men have been known to make mistakes . Have you considered the matter since ? Is it not possible that you were in error in regard to the hour ? ''