twelve o'clock
Night settled down . Jack , who had the first tour under the new arrangement , had made himself comfortable in the conning tower , and Mr. Henderson had hidden himself in the companionway . His idea was to thus guard both openings into the ship and ascertain whether the ghost came from within or without the craft . Up to a short time before twelve o'clock nothing out of the ordinary happened . The only sound was the lapping of the waves on the steel sides of the _ Porpoise _ , and now and then a splash as a big fish leaped out of the water . There was only the slightest breeze . Jack who , somehow or other , felt much sleepier than usual , caught himself nodding several times .