Read it through once

The next moment both men were flying up the pilot-house companion way, three steps at a jump! Nobody there! The great steamer was whistling down the middle of the river at her own sweet will! The watchman shot out of the place again; Ealer seized the wheel, set an engine back with power, and held his breath while the boat reluctantly swung away from a 'towhead' which she was about to knock into the middle of the Gulf of Mexico!