Madeline Fox and Alexander Wolfe, juvenile werewolves, are happy together. Maddy is adapting well to life as a lycanthrope, though she misses her family. Everything seems perfect, but when Maddy has a sudden, unexpected near-death experience, Alex is forced to do something he thought and hoped he would never have to do. He has altered who Madeline is, giving her his blood and taking some of her own. But as Maddy is going to find out... Alex isn't all werewolf. He's also something darker and deadlier, something that has tasted her blood, and wants the rest. Every last drop.

Sixteen year old Madeline Fox, runaway and werewolf, has found a home with her Match, Alexander Wolfe. With him, she learns to control her Wolf and begins to feel at home, and fall in love with Alex. But when a dark change inside Maddy starts to kill her, she wonders if she'll become the creature of her nightmares: the blood-craver. And when Alex's father is killed in a pack fight, Alex's dark side is about to explode and only Maddy can hold him back. But are there too many problems at once happening inside and around these two young werewolves? All this in the midst of a war with a rival werewolf pack.

When Madeline Fox turns sixteen, she feels like a woman already, ready to face anything, even another year of high school! But Madeline has grown up oblivious to her dark side, and hers is darker than most. What neither Madeline or her family realize is that children born on the night of a full moon, as Madeline was, are born with an animal inside them, and it awakens on their sixteenth birthday, hungry for blood. She is a Child of the Moon and her Wolf will not be denied.