The teenager Nils is once again in trouble. The only thing that can help him is his uncle's advice.

Once Upon a Time there lived a brave man, Michael, who was unaware what fear is. At the same time, Princess Elisabeth lived with her father, the king, in a makeshift tent city, because their castle was uninhabitable and haunted by ghosts, its treasure cursed. If he wants to know how to shudder, he should visit this Haunted Castle.