As well as being a magnificent novelist Blasco Ibáñez was also a political activist, a republican progressive constantly working to undermine the ossified conservatism of late nineteenth and early twentieth century Spain. It's not always easy to turn political activism into great fiction: all too often, characters turn into mouthpieces of this or political position, this or that ideological stance. Often, Blasco speaks his politics through his characters by 'showing' rather than 'telling'; Flor de Mayo, Entre Naranjos, Arroz y Tartana, La Barraca are all brilliant novels where the characters serve to enact the politics through their behaviour rather than act as megaphones for political positions. From this point of view La Catedral is not a successful novel: there's too much telling and not enough showing. However, the telling is fascinating in its own right. Toledo cathedral (the 'catedral' of the novel's title) stands as a symbol of the privileges acquired by the church in Spain over centuries, and provides Blasco with the the opportunity to have his characters discuss the origins of Spain's decline as an Imperial power, and criticise the malign effect of the Christian kings on Spain's cultural development. There are also some semi-Socratic scenes where the principal protagonist, Gabriel, explains (and criticises) theories of the origins of private property (drawing almost word for word on John Locke), and discusses the insignificance of human beings in the vastness of the cosmos. I imagine his contemporary readers will also have learned from his revelation that light and sound have velocity and that when we look at stars we're looking back into the past. All this in 1903. In sum, as a sounding board for Blasco's social commentary La Catedral is hugely and fascinatingly successful, but as a novel less so.