Wildly imaginative . . . something utterly new and weird.--Publishers WeeklyEveryone thinks Evan is sick. But Evan knows he is actually transforming. His metamorphosis has him confined to his bed, terrified, and alone--except for visits from the Wuftoom, a wormlike creature that tells Evan he is becoming one of them. Clinging to his humanity and desperate to help his overworked single mother, Evan makes a bargain with the Vitflies, the enemies of the Wuftoom. But when the bargain becomes blackmail and the Vitflies prepare for war, whom can Evan trust? Is saving his humanity worth destroying an entire species, and the only family he has left?