Chapter thirty-five of Chains has Isabel visiting Curzon in prison for the first time. The first third of the chapter would be where major changes occur if Curzon were narrating, because he would have no knowledge of Isabel's plan to bring him food. There would be no narration of her bringing the bucket to the prison and having it "searched." That information could be conveyed to readers, but Curzon would have to ask Isabel how she managed to bring the food in the first place.
Once Isabel gets into the room with Curzon, not much of the chapter would change if he was narrating. The reason for that is because Isabel asks him what the battle was like. At that point, Curzon takes over most of the chapter's narration. There is the occasional comment from Isabel about Curzon swallowing hard, but his lengthy quotes are incredibly descriptive of the horrors he saw during battle. Instead of the chapter saying, "Curzon said," the chapter could make small changes and say, "I said." Curzon would hopefully give some narrative details about Isabel gasping in shock when he tells her specifics like men having their heads ripped off their bodies by cannonball blasts. The chapter already conveys a tone that war is horrific. The conflict between Patriots and Loyalists would still be conveyed. Themes about racism would still exist, because Curzon would be able to tell readers that Private Dibdin tried to steal the food because he thought Curzon didn't deserve it.