In this sequel to Stormcaller, the Amazon best-selling urban fantasy novel, Isaura Durand finds herself under hunted. The FBI wants answers to the ritual murders in the Cascade Mountains, the blood mages want to put an end to her meddling, and an order of assassins wants her dead. Oh, and the rest of the eldritch community thinks she's murdering other adepts. So much for a normal existence. Ordo Purgatio—an ancient fraternity of pious hunters—has come to Seattle to kill her. Resourceful and relentless, the assassins prove to be more than a match for her. Each attempt on her life grows more ruthless—and the stakes that much higher. As she races through the chaos to stay ahead of her enemies, Isaura searches for answers. Why can she control lightning—her signature power—when no other adept can? What is the source of her magic? The truth carries frightening implications and may cost more than her life....