Angry Rus". Winter 1237

Autumn 1237. The Russian land froze in alarm: a huge horde of Batu gathers in the steppe near the top of the Voronezh River. Prince Ryazan Yuri Ingvaevich has accumulates forces on the border and sends messengers with requests for help to Vladimir and Chernihiv. After all, if the help of the neighbors does not make his time on time, the principalities of Ancient Rus" will be swept one after another from the face of the earth: the soldiers will die in a bloody Sich, women and children will be taken in full, and cities and weight will turn to ashes.
But one morning, our contemporary, a historian, amateur reconstructor, will wake up in the body of a young warrior Yegor from the Blind Yelets. Will he, having knowledge of the future, can change the course of history a few weeks before the invasion and prevent the tragedy? Or will he become one of the grains of sand that the Mongolian Horde will sweep away in its path?