The collection combines works of various genres of science fiction - “space opera” by E. Hamilton, adventure-adventure by G. Dixon, “fantasy” by G. G. Smith and “hard” science fiction by W. Le Guin. What they all have in common is mystical adventure content. The authors’ imagination brings the characters of medieval legends of the peoples of Europe into our time and into the distant future. The works included in this publication were published in the original language before 1973.