three
o'clock
`` But do you think there is any hope of finding him ? '' `` I 'm sure there is , only be patient . '' `` But what must I do ? '' `` Well , take this man to see some of the sights of London until three o'clock , then come home to dinner . After dinner he 'll be sleepy . Let him sleep , if he will , until nine o'clock ; then bring him here again ; but let him have no supper until after I have done with him . '' `` Nine o'clock to-night !