Galadriel (Gilly) Hopkins is eleven, brilliant, and angry. She’s been in and out of foster care for as long as she can remember, and she uses her intelligence to keep everyone around her in an uproar. But she gets more than she bargains for when she’s sent to live with Maime Trotter. Her attempts to control her situation and to make contact with her long-absent mother have unexpected results, and Gilly learns to look at home, family, and herself in a new light.