The county that the witcher protects is under the threat of animals who have killed their old ally. But their inhuman ambitions extend far beyond the boundaries of the County, and the future of all people hangs in the balance, caught in the center of a supernatural struggle between beings of the highest power. The forces of darkness and light must stand side by side in this final battle for the whole world. A war that will decide the fate of humanity unfolds in this chilling tale from the bestselling author of The Witcher's Apprentice.