A girl is home alone on a full moon when she hears a noise outside... She bravely goes to see what it is and is confronted by two wolves escaping from INSIDE her house! She controls them back into the cellar - her eyes flashing golden - who is this girl? She's Maddy Smith and she's a wolfblood.
Fourteen-year-old Maddy Smith is hiding an extraordinary secret about who she really is, belonging to a half-human species of wolfbloods, even from her closest friends. After letting her parents out of the locked cellar—their "den," and only place in their lives free of humans—she scolds them for breaking out of the cellar the night before, and they promise her that once she can transform, she'll understand the pull of the moon. She goes to school and faces her best friends Tom Okanawe, a loyal boy and football enthusiast, and Shannon Kelly, resident beast hunter. Shannon is ranting about a paw print she found on the moors, but Maddy is distracted by the scent of another wolfblood in the school. She meets this second wolfblood soon in morning registration, a boy called Rhydian Morris who doesn't take kindly to Maddy's amazed comment that he "smells like her parents." Later, she scolds him for being on her pack's territory and he shrugs her off.