1767, February. Near the shores of Spain, in a battle with pirates, the sailing ship "Dei Gloria," owned by the Jesuit order, perishes. The cabin boy - the only one who survived - mysteriously disappears, failing to properly recount what happened. All he managed to report were the coordinates of the tragedy... Spain, present day. Navigator Manuel Coy, temporarily stripped of his right to engage in maritime activities for grounding the vessel, meets a girl at an auction who has purchased an ancient maritime map for a large sum of money. Tangier Soto, a museum employee in Madrid, is manically obsessed with the idea of finding the sunken ship, which she believes was carrying a cargo of extraordinary importance. She enlists Manuel Coy as an assistant as an experienced navigation specialist. The girl is well aware that she has crossed powerful and dangerous forces capable of doing anything to eliminate a rival, but this does not stop her… Arturo Pérez-Reverte - a former military journalist, a celebrated author of brilliant historical, military, adventure novels, translated into forty languages, creator of the series about Captain Diego Alatriste, holder of prestigious literary awards. His bestseller "The Map of the Celestial Sphere, or The Secret Meridian" - an intellectual thriller in the best traditions of "The Dumas Club" and "The Flanders Panel." Here the ghosts of all seamen of the world linger. Here Pérez-Reverte, himself an experienced sailor, pays tribute to Robert Louis Stevenson, Joseph Conrad, Herman Melville, Patrick O’Brian. Here maritime adventures are inseparable from history, literature, and love.