Spense might have saved his country of Telridge and won the heart of the faerie princess. But he doesn't feel like a hero-not while Dewy is stuck in the Winter lands, all because of a bargain she made on his behalf. After months of fruitless research, Spense abandons the libraries of Telridge and turns to the Faerie Oracles to seek a solution. Meanwhile, Dewy is no damsel in distress. She is on a journey of her own, diving deeper into her magic, and finding alliances in the most unexpected of places. As they each seek the Winter Heir, they face unsettling truths about themselves, their world, and the steep costs of magic.