With the dream of Avalon in ruins, Tamsin and her friends are all that stands in the way of Lord Death's plans to unleash the horrors of Anwnn on the world of the living. As the Wild Hunt carves a bloody path across continents, Tamsin is mustering allies, tracking down powerful artifacts, and traversing into new otherlands in search of a way to stop him. Legend tells of a “Mirror of Beasts,” powerful enough to trap even Lord Death in its accursed glass, but the mirror is not all that it seems. Tamsin must confront her own darkest secrets if she hopes to tap the mirror's strength to defeat her enemies.