When a twelve-year-old evil genius tries to restore his family fortune by capturing a fairy and demanding a ransom in gold, the fairies fight back with magic, technology, and a particularly nasty troll.

When new team members are being kidnapped and threatened, Frank and Joe join the basketball team at the request of their principal to uncover the culprits.

"Quinnie's teacher has disappeared. Quinnie suspects a kidnapping but her mom, even though she's the sheriff of their small Maine town, disagrees. So Quinnie teams with her glamorous new neighbor to investigate the mystery"--

On a mission to rescue Empress Justina's son from his pirate kidnappers, Hal and the brotherband crew set sail amid stormy seas to the island of Santorillos where they encounter a formidable obstacle, a caldera.

Superspy middle schoolers Ben and Erica must embark on mission to rescue Erica's grandfather, who was abducted from a remote Alaskan training facility.

When his archaeologist parents go missing in Central America, fourteen-year-old Max embarks on a wild adventure through the Mayan underworld in search of the legendary Jaguar Stones, which enabled ancient Mayan kings to wield the powers of living gods. Includes cast of characters, glossary, facts about the Maya cosmos and calendar, and a recipe for chicken tamales.

Cordelia, Brendan, and Eleanor Walker, aged fifteen to eight, must rely on a mysterious book to face the Wind Witch and her father, the Storm King, who have kidnapped Dr. and Mrs. Walker and brought them to a strange world of magic.

Unable to return to their normal lives despite the end of the Clue hunt, new Madrigal leaders Amy and Dan anxiously prepare for a retaliatory strike by the Vespers, who kidnap a number of Cahill family members and demand that Amy and Dan steal a famous painting.

Seventh-grader Tristan must return to Alke and enlist the help of African gods and black folktale heroes when Nana is abducted from the Strong family farm in Alabama.

It is a time of trouble in the Northern Kingdoms because a group of power-hungry polar bears called Roguers has been snatching cubs from their mothers and killing those who resist; but Svenna is not about to relinquish her two cubs to that fate, so she agrees to go with the Roguers and serve Mystress of the Hands if her cubs, who have special powers, are allowed to stay with her cousin--but nobody is truly safe when a way of life is collapsing around...