When his best friend disappears from her bedroom in the middle of the night, thirteen-year-old Theo uses his legal knowledge and investigative skills to chase down the truth and save April.

The courageous Redwall creatures band together as Vilaya, the evil Sable Quean, and her horde of vermin attempt to make off with the young animals of the Abbey.

In an overpopulated world where all signs of nature have been obliterated and a wall has been erected to keep out plague-ridden animals, twelve-year-old Mika refuses to believe that his twin sister was killed after being abducted, and continues to search for her in spite of the dangers he faces in doing so.

Idaville's secret weapon against lawbreakers, ten-year-old Leroy "Encyclopedia" Brown, helps the police force solve ten new cases, the solutions to which are found in the back of the book.

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.

When Artemis learns that his father has been kidnapped by the Russian mob, he races to the Arctic Circle to make a daring rescue, where he finds an old acquaintance, Captain Holly Short, who is investigating a plot of the goblin mob.

"Twelve-year-old Addison Cooke just wishes something exciting would happen to him. His aunt and uncle, both world-famous researchers, travel to the ends of the earth searching for hidden treasure, dodging dangerous robbers along the way, while Addison is stuck in school all day. After his uncle unearths the first ancient Incan clue needed to find a vast trove of lost treasure, he is kidnapped by members of a shadowy organization intent on stealing...

After returning the missing children from history to their original time periods, thirteen-year-old Jonah must save time itself when aviator Charles Lindbergh mysteriously appears and kidnaps Jonah's sister.

Simon Thorn only recently discovered that he's an Animalgam--one of a secret race who can shift into animals. Now, for the first time in his life Simon has real friends to train and study with at the secret Animalgam academy hidden under the Central Park Zoo. But danger awaits just around the corner. Simon's evil grandfather, Orion, has abducted Simon's mother, and he's using her to locate the pieces of a terrible weapon that could destroy the entire...

Pinmei, a storyteller's granddaughter, must find the Luminous Stone that Lights the Night to rescue her grandmother, who has been kidnapped by the Tiger Emperor.