two o'clock sharp
But , old boy , I must be going now , I 've got to take Elsie to a dinner party to-night . Fearful bore , but when duty calls me , I always obey . You 'll come with me to-morrow , eh ? Then just drive round to the house at two o'clock sharp . Au revoir . '' `` Stop a moment , Jack . Can you give me Mademoiselle Laurentia 's address ? ''