One of the knights of the order, the son of the Polish king, dies near Grunwald. He dies, but he will have to live and die many more times. Death is only the beginning of the Eternal Grunwald. It all begins with the rape of the fourteen-year-old daughter of a Nuremberg merchant by King Casimir. By the time the royal bastard is born, his father is already dead. Pashko lives in a brothel where his mother ended up. When she dies, all the guy’s property consists of a small knife, already stained with blood, and a scarf with the royal monogram “K” - the only symbol of his origin. Pashko sets off on a journey that will ultimately lead him to the fields of Grunwald. Twardoch, taking his hero through different times, realities and alternative incarnations, presents his version of Polish-German antagonism. "Eternal Grunwald" is a dark, bloody and dirty story in which the author destroys the stereotypes of chivalric ethics and romantic idealism. The novel is intended for adults only.