Mattie can't remember a time before she and William lived alone on a mountain. She must never make him upset. But when Mattie discovers the mutilated body of a fox in the woods, she realizes that they're not alone after all. When strangers appear on the mountaintop looking for the creature in the woods, Mattie knows their presence will anger William. Terrible things happen when William is angry. From the author of the Chronicles of Alice duology, "Alice" and "Red Queen".