Russian engineer Darius Kvachin was perfectly equipped for autumn fishing and hunting on the Yenisei. He provided for literally everything, right down to the thermal imager. The only thing that Kvachin did not foresee was that in the heat of the chase after wild ducks he would fall along with the boat and all the equipment... into a mysterious place where the muddy waters of an unfamiliar river cross the tropical jungle. Kvachin had no illusions; he understood that no earthly forces were capable of such a trick. An experienced person, finding himself in a difficult situation, relies only on himself, but still Kvachin felt more confident when he learned that in the hot world of the planet Krista he was not the only one from Earth...