Mafi, who became an invisible witness to the conversation between Muli's mother and Polina's cat, was surprised: Polina turned out to be strangely dressed and looked unusual. And then Mafi learned something incredible. Yes, Polina came to Mulya, but she is a guest from the past, from the era of the Great Guardians. In those years, an evil werewolf wanted to destroy the Beautiful Valley. Mulya saved the country; she was a puppy then, but she managed to lock away evil in grief. However, centuries later, the werewolf escaped from prison. How did he do it? Little Mulya made an inaccuracy when reading the locking spell. And now Mafi, Marshmallow, Josie and others need to go to ancient times, find out what mistake Mulya made, and read the spell again... Residents of Mopshouse will have to understand: not every cat should be helped, if your sister betrayed you, then she is not a traitor, but he He who guards a prisoner in a dungeon can become his best friend.