Middle-schooler Madeline's hippy parents have been kidnapped from Hornby Island, Canada, by foxes and Madeline, upon discovering that she can understand animal languages, hires two rabbit detectives to find them.

When Clara vanishes after the puppeteer Grisini and two orphaned assistants were at her twelfth birthday party, suspicion of kidnapping chases the trio away from London and soon the two orphans are caught in a trap set by Grisini's ancient rival, a witch with a deadly inheritance to shed before it is too late.

When swan Elsinore, the beavers' beloved mother figure, is kidnapped by dark forces, Dunwattle and Locksley set out to find her, but little do they know, they have a much larger expedition in store when they discover other persecuted animals being held against their will for nefarious purposes.

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.

In 1866, Omakayas's son Chickadee is kidnapped by two ne'er-do-well brothers from his own tribe and must make a daring escape, forge unlikely friendships, and set out on an exciting and dangerous journey to get back home.

"Once a poor orphan, Rose is now an apprentice to the king's chief magician. But when the country's beloved princess vanishes, everything changes. As rumors of dark magic fly through the city, the king asks Rose for help. She must find the missing princess, before all is lost"--

When twelve-year-old River's only friend is kidnapped and dragged to the terrifying spirit world of The Otherwoods, they have no choice but to face the world's monsters and their own fears to become the hero they were destined to be.

In 1937, ten-year-old Henry Shipley must rely on a talking cat named Lantern Sam and a kindly conductor named Clarence to help solve the kidnapping of a young heiress aboard the Lake Erie Shoreliner passenger train.

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.

At college in New York City, Janie Johnson, aka Jennie Spring, seems to have successfully left behind her past as "The face on the milk carton," but soon she, her families, and friends are pursued by a true-crime writer who wants their help in telling her kidnapper's tale.