About the book: year / Alexander Petrovich Kazantsev is one of the patriarchs of Russian science fiction. His works, filled with deep faith in the victory of the light principle over the dark forces, have been invariably included in the reading circles of connoisseurs and lovers of the genre for the last few decades. He was one of the first among Russian science fiction writers to address the topic of contacts between terrestrial and extraterrestrial intelligences.