A crossover where two seemingly categorically incompatible Universes are combined: the Great Ring of Ivan Efremov and the Expanded Universe in which Predators, Aliens... and some others live. The plot is taken from Ivan Efremov’s novel “The Hour of the Ox”: a ship of interstellar communists is sent to the planet Tormans to return the lost earthly brothers, groaning under the yoke of the oligarchy, to the right path. But something went wrong - instead of Tormans, the starship "Dark Flame" falls into the orbit of a wild planet, near which a mysterious spaceship appears, showing obvious hostility towards the peace-loving communards. This is how two worlds, two races, two completely hostile worldviews collide. Communist society against the archaic clan race of Yautha! Earthly humanism against high-tech Inferno! Fai Rodis vs. Alien Queen! Will the superhumans of the Age of Meeting Hands be able to adequately respond to the challenge posed by intelligent monsters, or will the entire long path traversed by earthlings on the path to a fair and wise society be in vain?