The swordsman Alexander, nicknamed Odinets, served in fifty border guards, fought with the Litvins on the Smolensk border, but did not gain loud military glory. However, Prince Ivan Danilovich Kalita himself called the warrior to himself and gave an order - to go to Tver and investigate the circumstances of the death of the sister of Khan Uzbek: an accident, murder, or... perhaps she didn’t die at all? And we must find out everything secretly, so that no rumors spread and so that no one tries to interfere with the investigation. Russian roads are dangerous and complex, but princely intrigues are even more dangerous and complex! And no one knows why the prince chose him, the swordsman Alexander, nicknamed Odinets...