one A.M.
From this he emerged long enough to remark : `` That 's prime whiskey , you know ... . Thanks very much , I will . '' And again fell silent , stroking his lips . `` I do n't want to seem to pry , '' said Staff at length , with elaborate irony ; `` but in view of the fact that you 've felt warranted in calling on me via the fire-escape at one A.M. , it does n't seem unreasonable of me to expect some sort of an explanation . '' `` Oh , very well , '' returned Iff , with resignation . `` What would you like to know ? '' `` Why did you disappear this morning -- ? ''