Only one Cossack comes back from the whole army, saying that the Poles have broken them, the ataman was killed, and they will soon attack. The daughters of the ataman, Liza and Maria, turn to the sorceress-hermit, and she says that the Polish sorcerer can be defeated by wearing a tongued hoop: then Kazimir will lose his power and become mortal, but the price for his murder will be terrible. Nevertheless, Lisa and Maria, having crept into Casimir's tent, seize him and take him away to be surrendered. Along the way Kazimir says that his curse ends only when he loves someone, and asks Maria to let him go: if she answers him in return, he will be able to renounce witchcraft and become a man. Lisa decides to finish off the sorcerer on the spot, and enters with Maria in battle, until she falls, stumbling into the abyss. In anger, Liza beheads the Kazimir. However, his still living head tells her that she is now under the same curse and that every thirty years she needs to sacrifice twelve girls and one resurrected, not knowing death, until she falls in love herself. Maria is met in the next world by a fiery voice, telling her to go back: if she kills her sister, she can live, and until then she will wander in the guise of an old woman. In the present day, Guro fetters Lisa with the same conjured hoop, and during the interrogation confesses that he is not going to bring her to court: on the orders of the secret society, he must deliver the immortal Horseman to St. Petersburg so that he shares the secret of eternal life with the Russian Empire. In case of refusal, he threatens to kill Gogol. After listening to the conversation, Nikolai and Binh rush to stop Yakov Petrovich, and Binh, in order not to let him carry out his plans, shoots at Lisa. Hearing from her that Gogol himself was to be the thirteenth victim, but for his love Lisa spared him and instead killed Oksana - also resurrected - Gogol removes the bewitched hoop, and Liza again becomes an immortal Horseman. Hardly having coped with Guro, Liza, Gogol and Binh see on the threshold old woman Kristina from the village, which suddenly turns to Maria. She kills Binh and mortally wounds Gogol, and forces Liza to give her immortality to Nicholas, before decapitating her, like her sister did to Casimir.