The insidious sorceress Zandramas kidnaps little Garan, the son of King Garion. She needs the boy to perform a mysterious ritual that will allow the forces of Darkness to gain supreme power over the world. Garion and his friends give chase. According to the Ancient Prophecy, Zandramas, the Child of Darkness, and Garion, the Child of Light, must meet in a mortal battle, and then a Choice will be made that will determine the further course of history. The path of the brave souls turned out to be difficult and full of dangers. They happened to witness the battle between the demons who appeared at the call of Zandramas. After escaping many traps, they are captured by Zaket, the powerful emperor of Mallorea. Meanwhile, Zandramas is getting closer to her goal...Garion learns that she is heading to Ashaba, a gloomy castle on the border with Karanda. He has only a few days to overtake her, then it will be too late. But suddenly a terrible disaster - a plague strikes the city of Mal-Zet, and now no one can either enter or leave it...