"Marina" is a defining moment in Carlos Ruiz Zafón's creative journey. It is his last novel dedicated to the younger generation, and with it he bids farewell to this literary genre, bringing his young reader along with him, along with the atmosphere of adventure and suspense, the romantic and nostalgic aspects, and the heroic and intelligent confrontation of horror and its causes, into the open-ended world of the novel, suitable for all age groups. It is the first novel dedicated to events taking place in Barcelona. After Britain, France, and India, Zafón takes his hometown as a new stage for his traditional narrative plot, making Barcelona a central hero, highlighting its urban landmarks and enriching the narrative imagination with its history, culture, and the uniqueness of its people and strangers. "Marina" is therefore an essential milestone for understanding the development of this writer's narrative craft, as his maturity is evident in his characterization, the multiplicity of the narrator's voice, the use of symbols, the choice of place and time, and the skillful presentation of details that will later dazzle readers around the world, inviting them to enter the cemetery of forgotten books.