After a class trip to a floating zoo where animals are mistreated and Savannah's missing pet monkey is found in a cage, Long Island sixth-grader Griffin Bing and his band of misfits plan a rescue.

As the race to find the 39 Clues builds to its explosive finish, Amy and Dan must explore an ancient culture and steal a clue guarded by thousands of the world's best-trained soldiers. It's the most dangerous search yet ... and it may mean the end for Amy and Dan.

The youngest expedition is attempting Everest and it becomes a life-or-death rescue mission.

"Cahills are being kidnapped by a shadowy group known only as the Vespers. Now Amy and Dan have just days to fulfill a bizarre ransom request or their captured friends will start dying. Amy and Dan don't know what the Vespers want or how to stop them. Only one thing is clear: the Vespers are playing to win, and if they get their hands on the Clues the world will be their next hostage"--P. [4] of cover.

Aiden works with the FBI in order to rescue his sister Meg, who was kidnapped.

Twelve-year-old Trevor Firestone loves playing war-based video games and he idolizes his great-grandfather Jacob who came home from World War II a celebrated hero; now ninety-three Jacob wants to retrace his journey in memory and reality and return to the small French village that his unit liberated, and Trevor is going with him--but not everyone in the town wants Jacob to come, and Trevor is going to learn an important lesson: real war is not a video...

Oliver and Nathan, determined to get to the bottom of their new homeroom teacher's fishy behavior, discover Mr. Aidact is actually an AI robot from a secret experimental program.

Aidan and Meg Falconers' parents are facing life in prison unless Aidan and Meg can prove their innocence, but first they must escape from a juvenile detention center and elude both the authorities and a sinister attacker who has his own reason to stop them. Aidan and Meg Falconer must escape from a juvenile detention center and find evidence to clear their parents of something that they did not do.

Santa's Workshop Holiday Spectacular at the Colchester mansion is a long standing tradition in Cedarville, however Griffin, Ben, and Antonia are not happy to find that they have been volunteered as elves by their friend Logan and can not get out of it--but this year the pageant seems plagued by frequent electrical outages, and during one of them the valuable antique known as the Star of Prague disappears from the giant Christmas tree, and as they...

"A group of kids discovers they were cloned from the DNA of some of the greatest criminal masterminds in history for a sociological experiment"--