Noah and his friends in the Secret Society join forces with four teens known as the Descenders to try to protect the Secret Zoo hidden below the Clarksville City Zoo from monstrous sasquatches and the evil Shadow Master.

Noah, Megan, Richie, and Ella must navigate a maze of never-ending aquariums in the Secret Zoo to rescue their animal friends.

A princess and a peasant girl, who hides a sorrow in a town where everyone lives with unending joy, embark on a dangerous quest to outwit a centuries-old warning foretelling the fall of the Monarchy.

After his father's death, seventh-grader Sam West is whisked from Louisiana to Oklahoma, where he discovers a mysterious tree trunk that leads to a world where Pa is still alive.

The discovery of Harriet's secret journal, concerning the personalities and activities of her schoolmates and neighbors, causes pandemonium.

When Laura Sibbie starts a club called Pig City, she incites a near-war among her sixth-grade classmates and generates the creation of a rival club that has designs on Pig City's precious box of secrets.

On a cross-country vacation with their parents, twins Coke and Pepsi, soon to be thirteen, fend off strange assassins as they try to come to terms with their being part of a top-secret government organization known as The Genius Files.

When Frank and Joe Hardy put a stop to the alarming, but mostly harmless, pranks of amateur moviemaker Seth Diller, a series of more dangerous copycat pranks leads them to a criminal group called the Red Arrow.

Andi and her brother wind up with nine stray dogs that need homes but must be kept a secret.

The Greystone kids thought they knew. Chess has always been the protector over his younger siblings, Emma loves math, and Finn does what Finn does best--acting silly and being adored. They've been a happy family, just the three of them and their mom.But everything changes when reports of three kidnapped children reach the Greystone kids, and they're shocked by the startling similarities between themselves and these complete strangers. The other kids...