Lena Vale has spent twenty-two years obeying one rule: never enter the woods. Then one night, something calls her into the forest and she meets Kael Blackwood, the ruthless Alpha whose wolf immediately recognizes her as his mate. There's just one problem. Lena is human. As hunters close in and secrets about her dead parents begin to surface, she discovers that the wolves aren't afraid of her because she's their enemy. They're afraid because she may be the last Luna capable of changing their world forever.