Frank and Joe Hardy become involved in a mystery after the theft of a hot rod belonging to their friend, Chet.

Captain Drake remembers his past as a knight in the service of King Roderick.

When fifteen-year-old Ty, who has always lived on the ocean floor, joins Topside girl Gemma in the frontier's underworld to seek and stop outlaws who threaten his home, they learn that the government may pose an even greater threat.

When a Bandit King comes to take the magic that Ned's mother, a witch, is meant to protect, the stuttering, weak boy villagers think should have drowned rather than his twin summons the strength to protect his family and community, while in the woods, the bandit's daughter puzzles over a mystery that ties her to Ned.

Twelve-year-old Eddie Atwell accidentally learns who has been stealing lobsters from Fog Island lobstermen and enlists thirteen-year-old Briggs Fairfield, a summer visitor, to help foil their plans.

Spunky twelve-year-old Goldie, Toadspit, and the other children face up to Fugleman, his band of Blessed Guardians, and an army of mercenaries who have captured the city of Jewel.

When her mother goes on a NASA mission, Cat Starr is sent to live with her father, stepsister Olivia, and younger brother Geoffrey, but interference by her inept fairy godmother causes toads to appear when Cat speaks and gems to fall from Olivia's mouth, bringing one to the attention of jewel thieves and the other to a secret government laboratory.

Twelve-year-old Max is determined to investigate the connection between a hacker's online attacks of her grandfather and other town officials and suspicious activity at the supposedly haunted Thornwood Manor, even though her grandfather, who is Blue Creek's police chief, wants to keep Max and her souped-up wheelchair out of police business.

When Nott City is taken over by a harsh governor, Ignomus Crown, and her parents disappear, twelve-year-old Robyn Loxley flees for her life and joins a group of children trying to take back what is rightfully theirs in this futuristic retelling of Robin Hood.

"When a Russian billionaire robs the Norwegian Gold Reserve and melts the last remaining gold bar into the Premier Soccer League trophy, it's up to Doctor Proctor, Nilly and Lisa to recapture it"--