Crowe

Fourteen-year-old Claudia Kobb is sent to live with her reclusive, ageless grandfather, a notorious outlaw and wizard, as she searches for her missing father. With her grandfather's magic fading and his health declining, they undertake a daring quest to find him while navigating the dangers posed by the warders of Subterranea, a sprawling underground city where power struggles threaten anyone who opposes the ruling authorities.