midnight
`` When did Greer stand watch ? '' `` He 's niver told anywan , sor ; I think it must be a saycret . '' `` Get to your cabin and turn in , '' directed Madden . `` I 'll take it myself till midnight , eight bells . Then send Greer . '' Hogan saluted in the darkness and turned about for his cabin . Madden began a careful journey aft toward the wheel .