Taken by the Enemy by Oliver Optic

If Major Pierson had had any curiosity at all in regard to the person captured by the soldiers with his brother, he appeared to have forgotten all about him. He took no notice of him after he left his bed of hay, but then he was evidently very much disturbed by the fact that the Bellevite had left the wharf.

Christy Passford was quite as much astonished as the major when he learned that the steamer had left her berth at the wharf, and he was utterly unable to account for the change of position. The movement had been made since he left his uncle's mansion; for at that time the two brothers were still in the library, and he had no knowledge whatever of what was passing between them.