Seven years ago, Elan Korr watched a god butcher his family. Now, he lives for one purpose: revenge. In a world ruled by Sworn Gods who feast on human emotion, the price of power is the soul itself. Through a forbidden ritual known as a Soul-Oath, mortals can gain incredible abilities by sacrificing their memories, their joy, their love. It is a power Elan is willing to wield. Driven by a thirst for vengeance against the god-tyrant Tal, Elan infiltrates the heart of his enemy's temple to steal an ancient scroll. But his solitary quest entangles him with Serra Veer, a fierce huntress from the frozen north with her own desperate mission, and the Oathbreakers, a shadowy resistance led by the charismatic and ruthless Martin Lor. Promised the allies and resources he needs, Elan joins their cause. But the promise of liberation sours into a horrifying revelation. Martin's crusade is not for freedom, but for a power far more terrifying than the gods he seeks to overthrow-a world-ending cataclysm known as the Umbral Flame. Forced to make his own soul-sacrifices, Elan gains the power of fire at the cost of his most cherished memories. As his humanity frays and he discovers a shocking truth about his long-lost sister, he is branded a traitor for defying a plan to sacrifice millions. Now a fugitive from all sides, hunted by gods, madmen, and former allies, Elan faces an impossible choice: to stop a fanatic from becoming a new, more terrible god, must he forge an alliance with the very monster who destroyed his life? This is the first book in a dark epic fantasy series where the lines between hero and monster blur, and every victory is paid for in blood and soul.