Three months ago, Seraphine Vale was an ordinary surgical nurse grieving the loss of her aunt. Everything changes when an ancient werewolf bloodline awakens within her, revealing a hidden supernatural world beneath the streets of Boston. When she meets Kieran Ashford, the ruthless Alpha of the North Ridge Pack, fate declares them mates. Kieran is determined to claim her, but Seraphine refuses to surrender her freedom—even as her wolf is irresistibly drawn to him. As rival Alphas, witches, vampires, rogue wolves, and hunters close in, Seraphine discovers her blood carries a forgotten power capable of reshaping the balance of the supernatural world. Betrayal lurks in every shadow, alliances are tested, and an ancient prophecy threatens to ignite a war that could destroy both humans and supernaturals. In a world where destiny can be a blessing or a curse, Seraphine must decide whether to trust the Alpha who would risk everything for her—or become the spark that burns their world to ashes.