five o'clock
`` Why should you come to my room , Sprouse ? We can say all that is to be said -- '' `` If you will look on the register you will discover that Mr. J. H. Prosser registered here about half an hour ago . He is in room 30 . He left a call for five o'clock . Well , Prosser is another name for Ugo . '' `` Here in this hotel ? In room 30 ? ''