five o'clock
Irene did not permit it . `` But you have been working all the morning ? '' `` Oh , yes -- '' `` Since when ? '' `` Since about -- oh , five o'clock -- '' `` Then you have already worked something like eight hours , Mr. Otway . How many more do you think of working ? '' `` Five or six , I hope , '' Piers answered , finding courage to look into her face , and trying to smile . `` Mr. Otway , '' she rejoined , with an air of self-possession which made him feel like a rebuked schoolboy , `` I prophesy that you will come to grief over your examination . ''