Arturo Pérez-Reverte to publish new novel 'The Most Dangerous Hypothesis' in October

Acclaimed Spanish author Arturo Pérez-Reverte is set to release his latest novel, 'La hipótesis más peligrosa' (The Most Dangerous Hypothesis), on October 20. The book, which will be available in Spain and Latin America, promises an adventure steeped in the history and mystique of the Mediterranean.

The narrative centers on Cal Gadea, a 16-year-old boy raised by his grandparents, who is driven by a lifelong question: why did his father, Asier Lerrant, abandon him and his mother? Following faint clues and an old photograph, Cal locates his father in a Mediterranean port. Their reunion marks the beginning of a journey aboard a sailboat involved in trafficking stolen art, intertwining Cal's personal quest with a historical enigma and a police procedural plot.

Pérez-Reverte, a member of the Royal Spanish Academy since 2003, is one of Spain's most internationally recognized authors, with a track record of bestsellers. His previous works include the popular 'The Adventures of Captain Alatriste' saga, 'The Drum Skin,' 'The Flanders Panel,' and 'The Club Dumas.' His most recent novel was 'Mission in Paris' in 2025, preceded by 'Special Envoy,' a collection of his journalistic writings published in May 2026.