Ildefonso Falcones - Cathedral of the sea

XIV century. The city of Barcelona is at its moment of greatest prosperity; has grown towards the Ribera, the humble neighborhood of fishermen, whose inhabitants decide to build, with the money of some and the effort of others, the largest Maria cathedral ever known.
A construction that moves parallel to the hazardous story of Arnau, son of a peasant serf, who flees from the abuses of his feudal lord and takes refuge in Barcelona, ​​where he becomes a citizen and, with it, a free man.
While his best friend and adopted brother Joan studies to become a priest, young Arnau becomes a member of the guild of the stone-workers, soldier and moneychanger. A strenuous life which leads him from the misery of the fugitive to nobility and wealth. But with this privileged position he also gets the envy of his peers, who devise a sordid plot that puts his life in the hands of the Inquisition. He finds himself face-to-face with his own brother. Will he lose his life just as his beloved Cathedral of the Sea is finally completed?