Auburdeen Hayle is the sixteen-year-old daughter of the next leader of her coven. When the transition of power becomes tense, Burdie is sent from her home in America to stay with old friends in London to keep her safe. But a handsome young man chooses to hide from the police in her hansom, drawing Burdie into an underground world of magic that challenges even her sense of adventure and puts her at odds with the very people who are meant to protect her.