Una Guerra Más Fría by Charles Stross

Set in an alternate history where the Cold War never ended, the narrative unfolds in a world teetering on the brink of chaos as supernatural forces and political tensions collide. The protagonist, a British intelligence officer, navigates a labyrinth of espionage, dark magic, and geopolitical intrigue, uncovering secrets that could alter the balance of power. As the boundaries between reality and the arcane blur, the stakes rise, threatening to unleash an apocalyptic conflict that could engulf the globe. The story masterfully blends elements of science fiction and horror, creating a gripping tale of suspense and mystery.