About the book: 2020 / Having failed to defeat Rus', Batu’s hordes invaded Europe. Wallachia, Moravia, Hungary, and Poland fell under the hooves of their horses. The Mongols invaded the Holy Roman Empire. While the Great Khan was busy satisfying his ambitions, the time had come to undermine his influence in the lands he had already conquered. Only Dmitry Gordeev and his friends, a stranger from the twentieth century, can do this..