hour after 5 A.M.
`` What ! You know the murderer ? '' `` If the wrong man is not arrested by some one of the agents of Scotland Yard , of Mr. Oppner , of Julius Rohscheimer , of Heaven alone knows how many others that seek , I have hopes that within a few hours , at most , of the world 's learning I am an assassin , the world will learn that I am not . Can you be ready to accompany me at any hour after 5 A.M. that I may come for you ? '' Sheard stared . `` Certainly . '' `` Then -- to bed , oh , doughty copy-hunter .