In this unforgettable final volume of Ruiz Zafón’s cycle of novels set in the universe of the Cemetery of Forgotten Books, beautiful and enigmatic Alicia Gris, with the help of the Sempere family, uncovers one of the most shocking conspiracies in all Spanish history.

Nine-year-old Alicia lost her parents during the Spanish Civil War when the Nacionales (the fascists) savagely bombed Barcelona in 1938. Twenty years later, she still carries the emotional and physical scars of that violent and terrifying time. Weary of her work as an investigator for Spain’s secret police in Madrid, a job she has held for more than a decade, the twenty-nine-year old plans to move on. At the insistence of her boss, Leandro Montalvo, she remains to solve one last case: the mysterious disappearance of Spain’s Minister of Culture, Mauricio Valls.

With her partner, the intimidating policeman Juan Manuel Vargas, Alicia discovers a possible clue—a rare book by the author Victor Mataix hidden in Valls’ office in his Madrid mansion. Valls was the director of the notorious Montjuic Prison in Barcelona during World War II where several writers were imprisoned, including David Martín and Victor Mataix. Traveling to Barcelona on the trail of these writers, Alicia and Vargas meet with several booksellers, including Juan Sempere, who knew her parents.

As Alicia and Vargas come closer to finding Valls, they uncover a tangled web of kidnappings and murders tied to the Franco regime, whose corruption is more widespread and horrifying than anyone imagined. Alicia’s courageous and uncompromising search for the truth puts her life in peril. Only with the help of a circle of devoted friends will she emerge from the dark labyrinths of Barcelona and its history into the light of the future.