Afghanistan. The end of the Soviet troops’ war with the mujahideen. A spetsnaz team restores order in the Kunar province adjacent to Pakistan. During the chase for “Stingers,” Kondraty Lvovich Zarubin—hereditary Cossack and almost-captain of spetsnaz—gets caught in a trap. After an explosion in a dugout packed with explosives, his spirit is transported into the past. Waking up, he finds himself living in someone else’s body. Here they call him Yevpatiy Kolovrat. He is a boyar and a commander who serves the Ryazan prince Yuri. It is 1235 AD. Only a couple of years remain before Batu’s invasion, during which Rus’ will tremble and Ryazan will be burned first.
And now Batu Khan’s army has set up camp at Voronezh. Trouble is brewing along the borders of the principality, while confusion grows inside Ryazan itself. No one knows when the invasion will begin, but the looming threat hanging over Ryazan doesn’t scare the other princes of Rus’, who are accustomed to their own feuds. Everyone is waiting. And only the voivode from the twentieth century, who has already taken many secret steps to strengthen the city, is certain: without reinforcements, Ryazan is still doomed. By chance, an ancient secret falls into Kolovrat’s hands—something that can change the course of history. A doomed city finds hope.