One day the youth novel writer Mauricio Ballart receives the manuscript that his cousin in the country house she has with her husband in Burgo de Osma, and where she lived for forty years. The manuscript, of unknown authorship and narrated by a female voice named Leonor, excites the curiosity and imagination of the Hidalgos, since everything in it seems touched by mystery. Tomás decides to put it in the expert hands of his friend to enlighten them, and in turn, encourages him to rewrite and publish it. This story within a story within a story is truly a game of mirrors where the faces of the narrators multiply while the author's voice seems to slide through all of them, graceful and elusive, so that the reader cannot catch it. In it, Soledad Puértolas pays tribute to fiction, and, with her fine and abundant prose, she orders the chaos and makes it harmonious, to take us to the light and warmth with which only the classics usually protect us.