five o'clock
He rings for Mary , who enters . `` Where is Mrs. Horton , Mary ? '' he asks . `` Mrs. Horton telephoned she would be here at five o'clock , sir , '' answers Mary , who , according to the playwright , then goes out . But Mary did not exit . `` She has n't been home all night , sir , '' she added suddenly , unexpectedly , `` and it may be that she is in some trouble . '' Cartel turned a fierce frown upon her .