Poisonous pterodactyl-like "vampire" creatures are preventing the GALAX Concern from harvesting planet Geona's natural resources. A small GALAX crew, of which two are immobilized by "vampire" bites, do their best to eliminate the creatures. Inspector Yanin has been sent to Geona to assess the situation.

In this, the second part of the Geona series, the complex ecosystem of planet Geona is discovered.

Envoy Yulia flies to the planet and meets Rex, who said that at first everything went well, and then, as a result of the absorption of local silicon organisms, mutations caused by silicon viruses began. As a result, Harper received a lethal dose of radiation. Rex separated his head, connected it to an autonomous life support system, and created several Harper clones so that earth scientists would attach Harper's head to the body of one of them. Harper said that the project's name has a second meaning: The end of technological civilization.

People grow genetically modified plants using the brain of a dog and a man-octopus.

People continue to grow genetically modified plants using the brain of a dog and a man-octopus.