Cassandra Harwood scandalized her nation when she became the first woman magician in Angland. Now, she's ready to teach a whole new generation of bright young women at her radical new school, the Thornfell College of Magic...Until a sinister fey altar is discovered in the school library, the ruling Boudiccate sends a delegation to shut down Thornfell, and Cassandra's own husband is torn away from her.As malevolent vines slither in from the forest...