four o'clock
`` Poor old Frankie ! He 's splendid discipline for my temper , for he can be the most exasperating boy I ever saw . I suppose I 'm just as exasperating , though , '' she added honestly . `` Is that four o'clock ? '' asked Ruth suddenly . `` Dear me , I must go , though I 'd much rather stay here . Your chocolate is great , Dolly , and those nice little wafers were perfect with it . ''