Joker

Scouts who left Earth long before the first pharaohs of the Empire appeared on the planet return to their ancestral homeland and find that their place on Earth is taken by a new civilization. Earthlings are disturbed by rumors that reflections in the most ordinary mirrors are becoming dangerous to one’s health. And besides, people suddenly begin encountering their doubles in the streets.

Imperial space scouts Neo Crass and Bo Skir, the Earth girl Anna—a hydrology scholar—and Major of state security Danilov look at the situation from different angles, yet everyone sees behind the scenes of events one and the same person in a gray hood—the mysterious fellow nicknamed Joker. He may know the answers to their questions, but how can they find him?