Not far from Saturn, observers notice a strange object, the creators of which can only be “genies,” hyperpterid combat robots defeated and destroyed in the last war. What happened? Did any of them still remain with the solar system, or is this new generation of strange half-living creatures inhuman? What are they up to? How does this threaten people? Artem Romashin, an officer of the Security Service and the chief “Specialist on Demons,” will have to answer these questions. As has happened more than once, the investigation started by Artyom leads him to completely unexpected results that are of great importance for humanity.