ten o'clock
I 'm one of those selected . '' `` I see , '' the doctor said , meeting with his penetrating blue eyes the mildly exultant gaze of the black ones . `` I 've been at it now for a month , '' Peter went on . `` Instead of getting home at seven , I 'm at the office till nine , and sometimes ten o'clock . I enjoy it very much . The firm allows us something for our teas . My fellow-clerks and I have a rattling good time .