Little remains of the ancient, long-disappeared alien civilization. Only - artifacts. The artifacts are mysterious - and deadly to humans. Artifacts whose mystery must be solved at all costs. Because it depends on it - to be or not to be a space apocalypse, a catastrophe that will take billions of lives... Who will reveal the secret of artifacts? Perhaps the closest to the truth are two - a scientist ruling an alien colony of earthlings, and his mortal enemy and forced ally - a space adventurer...