Wizard Felix Harrowgate has finally reclaimed his sanity, his magic, and his position in society. But even as he returns to the Mirador, there are many who desire his end. His half-brother, Mildmay the Fox, follows Felix to the Mirador, where Mildmay finds himself drawn to an alluring spy of the Bastion, a rival school of wizards who want to destroy the Mirador. And Felix is the key to their plans.