Kingdom of Castallan. Prince Alfer is the only one who does not lose hope of finding his missing older brother and returning him the right to inherit the throne. He even participates in forbidden magical games in the hope of getting something that will help his brother get out of the black abyss. Thief Finn Howl is also not against playing risky games, since no one has seen her real face for a long time. But one day she will have to steal a legendary treasure from Castallan's royal palace - or lose her magic forever. And when the destinies of Finn, Alfer and his cousin Luke are intertwined, the actions of the young people lead to the release of a terrible ancient force. How to save Castallan and the whole world from destruction? How to stop the magic of the evil god who created darkness? And most importantly - how to earn the forgiveness of the people dearest to you?