two o'clock in the morning
`` Thanks . Shall we go on with our pub crawling ? '' `` Let 's . '' * * * * * By two o'clock in the morning , we had heard nothing , found nothing . The Duke looked tired , and I knew that I was . `` A few hours sleep would n't hurt either one of us , '' I told His Grace . `` It 's a cinch that Nestor wo n't be able to find any little girls at this hour of the morning , and I have a feeling that he probably bought himself a bottle and took it up to his room with him . ''