Seventeen-year-old Priscilla Daalman’s entire family are Hollow Warriors – legendary monster hunters charged with killing evil beasts from beyond our universe. She’s desperate to live up to that legacy, but she’s convinced neither she, nor her superpower – the ability to sense Hollow energy – is up to the task. 

But when Priscilla attempts a desperate ritual to enhance her abilities, she accidentally triggers a frightening new power: the power to summon monsters from the Hollow itself. Now, Priscilla must protect her loved ones – her heartbroken ex-girlfriend, her mysterious new boyfriend, even her fierce warrior family – from supernatural monsters, and also from herself. Because if her power gets out, all hell will break loose … and Priscilla will risk losing everything.