In this book, Han Solo and Princess Leia Organa are searching for their missing children, who have been kidnapped by a group of mysterious beings. They track the kidnappers to a remote planet called Nam Chorios, where they encounter a strange and powerful force called the Crystal Star. As they unravel the secrets of the Crystal Star and its connection to their children's disappearance, they must also contend with the planet's oppressive rulers and the return of an old enemy.