On the planet Chiron, a girl who has been afraid to venture Outside must face germs and other frights when her mother and her holographic best friend, Star, are kidnapped.
Freddie, her younger sister, and her friend Weasel decide to mount a search when Matthew Stein, a recent arrival in town who has become the target of bullies, disappears and is presumed kidnapped.
Twelve-year-old Henry Coffin, the son of a private investigator, helps a gorgeous high school girl in her dangerous attempt to find her kidnapped mother.
Tom Dashwood looks forward to becoming a knight but on his way to start his training, he is kidnapped by Robyn-in-the-Hat and the Green Men of Gressingham, a band of outlaws who are protesting unfair taxes.