midnight
The yacht was speeding along under canvas , -- was already far out at sea . Where Massowah 's yellow sandspit shone yesterday were now blue wavelets dancing in the sun , and Irene was sailor enough to know that the _ Aphrodite _ was bound south . She rang an electric bell , and her maid came . `` Yes , miss , '' said the girl , `` we 've been going since midnight . As soon as Mrs. Haxton and Baron von Kerber came on board -- '' `` Baron von Kerber , did you say ? '' broke in Irene breathlessly . `` Yes , miss .