Taken by the Enemy by Oliver Optic

To Captain Passford the question seemed to be settled; and he could no longer doubt that his brother fully sympathized with the leaders of the rebellion, if he was not one of them himself. He was certainly the most enthusiastic person he had yet seen on that side of the question. But Homer was thoroughly sincere, for he never was any thing else on any subject.

Horatio was unable to understand how his brother could reason himself into the belief that secession was right, when the duty of saving the Union was to him paramount; and certainly Homer was equally puzzled over the political faith of Horatio. Until the darkness of evening began to gather, they argued the tremendous question; and they discussed it ably, for both of them were thinking and reasoning men.