The book focuses on the figure of Charos (Χάρος, Χάροντας), widespread throughout the Hellenic world, including Cyprus and the Pontus region, and belonging to folk mythology of Modern Greece. The author, analyzing Greek demotic songs, especially mirologia (dirges) and the songs of the Underworld and Charos, but also alluding to acritic cycle of alleged Byzantine origin, sets out to ascertain plausible characteristics of this enigmatic and ambiguous personage.