The features of the organization of the artistic world of a fantastic work are considered. The material was the works of O. Gromyko, written in the genre of fantasy. The main parameters of the organization of the artistic world are analyzed: artistic space, artistic time and the picture of the heroes' world, understood as a system of their value attitudes and rules. The relevance of the study is due not only to the wide popularity of works of science fiction, but also to the ability to analyze the linguistic means of creating a "secondary world" using this material. The scientific novelty of this work is seen in the fact that linguistic nominative means of forming the main categories of the artistic world: space, time and the picture of the world are investigated. It is shown that the understanding of a fantastic work as a special "otherness of reality" is associated in literary science with the problem of artistic convention. Attention is paid to the description of the main scientific approaches to understanding the primary and secondary artistic conventions. It is noted that the idea of creating a special artistic world in fiction correlates with secondary conventions and fiction, which are interpreted as essential features of any work of art. The author concludes that the exceptional plausibility of the universe under consideration is due to the conceptuality, associativity and duality of the created narrative.
