Alice White has a secret. There is no friend or family member she can confide in—and she cannot trust it to the strangers she chooses for the fevered one-night stands that are as close as she dares come to love. Then she meets Erik Summers, college professor and biologist, who draws Alice from her cage, igniting a passion within her that she can't control or deny. Though he shares her fire and a deep spiritual and emotional kinship, Erik recoils from Alice's apparent delusions and dark truths. But in the vast Canadian wilderness, he will be forced to confront a staggering reality—when the moon shines down on Alice White . . . and the change begins again.