Six women have been murdered. Five were forgotten. One changed everything.

Barcelona, 1877.

When the brutal murder of an eighteen-year-old woman exposes five unsolved killings hidden beneath the chaos of war, Inspector Rafael Duran of Spain's elite Agencia Secreta is sent to uncover the truth.

The victims came from different walks of life. They shared no obvious connection. Yet as Duran rebuilds the investigation from the beginning, he discovers that the murders are anything but random. Behind them is a calculating killer who sees the world through a terrifying fantasy of his own creation, leaving behind clues that reveal not only his crimes but the darkness consuming his mind.

With every answer leading to another question, Duran must untangle years of forgotten evidence, hidden secrets, and carefully crafted deception before the killer claims another victim.

Set in the streets of nineteenth-century Barcelona, Inspector Duran and the Shadows of Barcelona is a richly atmospheric historical mystery combining meticulous detective work, psychological suspense, and unforgettable characters in a story where justice depends not only on finding a murderer, but on understanding the mind of a monster.