A novel by a master of Russian science fiction continues the cycle “Cosmopassengers.”
Patriotism, scientific concepts, and brave heroes. Darislav Volkov leads another expedition, but this time the escort “Salyut” is sent to the Dragon Castle—a fortress grown by earthly pterosaurs in the depths of the dark Universe.
Vsevolod Shapiro, a physicist from the “neighboring” Multiverse, studies Tymir and works on a theory of an anti-universe. Yet there is another, secret mission awaiting him. A portal brings Volkov, Shapiro, and their companions to a strange place where weapons and combat machines are not manufactured, but instead grown from special “spores.”
Will they be able to return? Can they deal with dragons that suddenly wake from hibernation?
The cold reason of Tymir wants to cleanse our Universe of the “dirt and debris” of other civilizations. But Earth people can solve any problem that threatens their Homeland.