A small princess in a small kingdom in Adventureland disappears on Christmas eve. She has gone out to find the Christmas Star. The Queen follows and the King curses the Christmas Star, so it disappears for years, until young Sonja arrives.
The parents get divorced and Jo has to move to a new place. One day, Nordstjerna goes out, and Jo discovers that a girl with magical powers lives in the attic. (24 episodes)