Abstract: The subject of this article is the tale aesthetics of one of the richest areas in Dagestan folklore – faerie epos, which found its artistic reflection in specific cites of plot composition of the themed sequence of tales “On Stepmother and Stepdaughter”. The aforementioned tales are characterized by the narrative-thematic variety and richness of poetic means and techniques. The object of this research is the narrative-compositional, stylistic and poetic peculiarities of fairytales to the world famous storyline “On Stepmother and Stepdaughter”. The goal of this work consists in illustration of the narrative-thematic variety and determination of the character of science fiction substantiated by specificities of the genre using the method of comparative-historical and analytical analysis, based on tales to the story “On Stepmother and Stepdaughter” popular in the folklore of multiple ethnic groups of Dagestan – Avars, Dargins, Kumyks, Laks, Rutuls, Tabasarans, Nogais, etc. The scientific novelty consists in the first comprehensive study of the variety of narrative-thematic content of the sequence of fairytales, as well as determination of their ideological-aesthetic foundation and distinctness of compositional structure. Some tales do not deviated from the theme of “stepmother – stepdaughter” conflict; some include various side episodes of science fiction nature full of magic and miracles; and some contaminate with the tales to a different storyline, theme or motif.