nearly five
o’clock
`` But never mind ; try and get a little sleep now ; try and check that feverish desire for work , which is slowly , very , very slowly , wearing you to skin and bone . Think how grieved the firm would be if the toothache carried you off one night . Why not go below and turn in now ? It 's nearly five o'clock . '' `` Could n't sleep if I did , '' replied the captain , gravely . `` Besides , I 've got somebody coming aboard to have tea with me this afternoon . '' `` All right , I 'm going , '' said Robert , reassuringly .