Earthlings are the only intelligent race in the entire Galaxy?! For several hundred years no one has doubted this - after all, on not a single planet have people noticed even a trace of “aliens.” But young graduates of the All-Planetary Star Academy Arthur and Andrey, going to their first long-distance voyage to the convict planet of the Big Luck system, they do not find a trace of inhabitants there, but they encounter a whole series of inexplicable phenomena indicating the presence of an alien mind on the planet. A cruel and hostile mind!..