Ursa is reunited with her mother at last—but her mom is the Priestess, leading a massive Surrogate army that threatens to swallow the town of Plumstead and then the world! She's got Charris and Trinh by her side, and a militia of mages and townsfolk at her back, but will that be enough? The Priestess's massive force is held at bay by a magical barrier—but with its caster trapped inside with the Surrogate, wasting away, this precarious...