On the eve of her eighteenth birthday, Saffron "Saffy" Callan believes her greatest challenges are high school graduation and saying a temporary goodbye to her human boyfriend, Sam, before they head to college. But Saffy’s life is built on a foundation of secrets. For years, her parents have suppressed her true nature, hiding the fact that she is a Werewolf Shapeshifter. As the moon rises on her birthday, the "fever" she’s been fighting culminates in a violent first shift, shattering her human reality and dragging her into a world of ancient laws and primal instincts.
Following her transformation, Saffy is uprooted from the neon glow of the city and taken deep into the wilderness to the Pack’s hidden village. Here, she learns the crushing weight of her heritage: she has been betrothed since birth to Danny, the future Alpha. Danny is the embodiment of everything Saffy was taught to fear—powerful, intensely loyal to the pack, and unnervingly certain that Saffy belongs by his side. As he trains her to master her wolf and assume the mantle of Luna, Saffy finds herself drawn to his strength.
However, the laws of the Pack are absolute. The Law of the Veil mandates that no human can know their secret. If Saffy chooses her heart and returns to Sam, she must undergo the agonizing Severance Ritual, losing her wolf and being exiled from her family forever. If she embraces her destiny with Danny, Sam must believe she is dead, or risk being "silenced" to protect the Pack. Caught between the boy who loves her soul and the man who commands her instinct, Saffy must decide if she is willing to kill the girl she was to become the leader she was born to be.