Weasel Clever has some difficulty convincing the powers that be that he has completed his tasks and deserves the promised rewards. But an enchanted saber by the hands of a good young man changes the world. At her instigation, Koschey Copperbeard and some of his direct heirs will perish. Not only those who have the right, but also those who have ambitions instead of rights will enter the struggle for the crown of the underworld. The applicants attract their friends, debtors and vassals, and the saber leads Laska into the thick of things. Together with him, his faithful friend Wolf gets into history, but the beautiful maiden Oksana, freed in Crimea, gets into even bigger stories at the royal courts.