Going north. Denisov V.

by the will of heaven, or rather, thanks to the meteorites who shot down its spaceship, the scientist from the ground, Mark Wishsha, is on Vankora - the planet where the Middle Ages reigns and the most invention is a primitive silicon pistol. Mark has to forget about who he is and become a free wanderer who, according to local customs, is not supposed to wear a long sword behind his shoulders. However, Mark wears it. And not only wears, but also applies. And where to go, if the cozy and all such civilized world of the Earth remained for hundreds of light years...