In Matilda's world the worst thing a fairy can do is get angry, because a fairy who gets angry runs the risk of becoming a witch. The only salvation for a witch is the spell of redemption cast by fairies commissioned by the queen to save the lost. When Matilda's best friend Luanna is killed by a witch, her anger transforms her into the very thing she has been called to save. Murdering hundreds in her rage, Matilda finds herself afraid of what she's become and hides herself deep in the earth where no fairy can go. Imbued there by dark magic she plots a way to protect herself from the queen. Who will save the world from Matilda? Who will save Matilda from herself?