A Marriage of Swords
"I don't know what you mean."
"You don't have to confirm it," he said, turning to leave. "But understand this, Leigh of the Iron Pass: this castle is not just a cage. It's also a fortress. And sometimes, the best way to defend a distant border... is from the very heart of the kingdom you claim to despise."
He was gone before she could form a reply, leaving her with the chilling, exhilarating sense that the game had just changed entirely. He wasn't just a wounded prince choosing a bride. He was a player, and he'd just shown her he was reading from the same map.