A skeleton hidden for centuries in the deepest recesses of Málaga Cathedral. Impossible blueprints. And a story that should never have come to light. When journalist Adrián Escalada uncovers the find, he realizes that this is not merely an archaeological discovery, but the beginning of an investigation that will drag him back to the 18th century, into a web of power, ambition, and obsession surrounding a man willing to do anything to finish a cathedral that the world had decided to leave unfinished. José García de Abriles, architect, prisoner, visionary... and, to many, a madman. His story is intertwined with uprisings, political decisions, and secrets that changed the fate of Málaga, while one question echoes through time: what drove a man to lock himself away among the stones of a temple to complete his work... or die trying? Amid hidden documents, conspiracies, and an uncomfortable truth, *The Madman of the Cathedral* is a novel that blends history and suspense with a narrative drive that grips the reader from the first page to the last secret.