Eight teens are dropped off on a remote west-coast island for a week-long treatment program called INTRO (Into Nature to Renew Ourselves). Alice's police-officer mother believes Alice might have a substance-abuse problem; Caleb, who assaulted his abusive stepfather, are joined by six other miscreants and three staff: a psychologist, a social worker and an ex-cop. On the first night, one of the girls disappears from her cabin. The adults seem oddly...

After moving with her parents to a remote English island, fourteen-year-old Jess attempts to dispel an ancient curse by solving a series of riddles, aided by Epsilon, a supernatural being.

Having finally developed the psychic ability her father has used to provide for them, twelve-year-old Spirit Holden, aided by the ghost of her beloved dog Sky, investigates the mystery of why wild dogs are dying on their remote island.

On Moonpenny Island, eleven-year-old Flor O'Dell experiences a series of life changes after her best friend's sent away to a private school.