After the deceit and betrayal of those close to her, Cassie's every footstep takes her deeper into darkness. She discovers Zach's true world - a world of decadence and strange, centuries-old traditions.
As she seeks the second book of the Speculum Nemus in the frozen world, shadowy beings watch on, waiting. Until the castle's plans for Cassie take a terrifying turn - a turn from which there is no escape.