In my novel, an ersatz antagonist comes up suddenly (his attack is a surprise, so no way of knowing about him or mentioning him before that). My protagonist arrives and doesn't even meet him, as that antagonist dies during the battle's rout. How do I make it more interesting? I had a thought: this antagonist has a brother, and I thought maybe switching POV's with this brother for that battle could be interesting. So instead of a boring battle for the protagonist's army, you could have the last moments of the brother's death. But the problem still stands, how do I make these deaths matter to the reader? I'm not under any illusion I can force them to feel something, but here they can't feel anything even if they want to.