В глухой Сибири нашли проход под рекой, который вёл в Параллельный мир

The river was called Vazhnaya (Important). It was an odd name for a remote Siberian river, but the locals had gotten used to it. The Vazhnaya flowed between rocky banks, then plunged into the forests, made a wide loop, and disappeared into the lowlands. The river was cold, heavy, and dark. In summer, timber was floated down it, and in winter, hunters walked across the ice. In the spring, it broke its banks as if each year it recalled an old grudge.