nine o'clock
`` That 's exactly what I was wondering about , '' replied Captain Hardy . `` I can make nothing of it . The only thing I can understand is the last part of the message -- ` nine sure . ' Somebody is to meet somebody somewhere at nine o'clock sure . '' `` If they meet at the Balaklavan rendez -- What 's that word ? I ca n't remember , Captain Hardy , '' said Roy . `` Rendezvous . ''