Mechanical arms operate in Pluto's ice desert and below the surface, and artificial brains organize the work. Robots Einstein, Kepler, Curie, Mendeleev, Leonardo and Joker, who create their offspring in their own image, tirelessly operate their colonies, develop themselves and the common knowledge base - however, they encounter more and more mysterious clues, which bear the fingerprints of an extinct species, and this species is not may be different from their ancient programmers.
The robots begin to follow the scattered tracks, jumping from planet to moon, moon to planet, to find these legendary, divine creatures. But as their journey leads them further into the solar system, a startling picture of the fate of human civilization unfolds before them.

Artificial intelligence and the robot-human relationship are now an everyday topic - but it is surprising how much Péter Zsoldos guessed about the challenges of robotics in this captivatingly exciting story nearly half a century ago, and how far-fetched concepts and visions of the future seem today.