midnight
They were like a lot of water kittens at play . '' Mark concluded he would say nothing of the white visitor until he ascertained whether any one else had seen it . It was several nights later , when the ship was once more proceeding slowly along the surface of the water , that the ghost again appeared . This time Washington had the midnight watch . But the colored man was not one to remain quiet when he had such a scary visitor , and his yells aroused the ship . `` It 's a ghostess ! A big white ghostess ! ''