The theme of the dissertation submitted is the novel Devil Guardian, whose author is a Mexican writer Xavier Velasco. This dissertation is the very first theoretical work in the Czech environment, devoted to the above-mentioned piece of literature published in 2004. In a sense, Devil Guardian represents a characteristic Mexican novel of the early 21st century, combining tradition and novelty in a surprising and original manner. A significant feature of the contemporary Mexican literature is a departure from the theme of Mexicanity, generally from a programmatic indulging in so-called national literature. Velasco's novel is an exemplary, however, not only piece of literature proving that the literary break-up with Mexico is neither an exclusive nor a dominant attribute of the contemporary Mexican fiction. In Devil Guardian Velasco focuses his mind on the theme of personal and national identity, which he treats in a considerably nontraditional manner, giving an ironical turn to speak to a hypermodern girl moving in the globalized world. The dissertation is divided into six parts. The first part "Originality Rooted in Tradition" refers to Devil Guardian ensuing the tradition of Mexican novel and innovating it. The second part "Xavier Velasco" briefly introduces the author's life and work. The issues...