To celebrate her birthday, George is taking Nancy and Bess on a bike tour around Mystic Lake, but when their tour guide disappears and unknown adversaries steal their supplies and slash their tires, Nancy begins looking for clues.

Andi is excited when the newspaper for dogs that she and her brother Bruce start becomes a big success, but when a group of dognappers appears on the scene, Andi and Bruce work to uncover the culprits and rescue the dogs.

A bookstore fire seems suspiciously like the plot of a bestselling author's mystery stories.

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.

"With a knack for trivia, Encyclopedia solves mysteries for the neighborhood kids through his detective agency. But his dad is also the chief of police, and every night, Encyclopedia helps him solve his most baffling crimes. Join Encyclopedia Brown as he solves ten confounding mysteries, involving a kidnapped ambassador, two suspicious boxers and missing money, and more. And with the clues given in each case, readers will have a chance to solve the...

Washed ashore as a baby in tiny Tupelo Landing, North Carolina, Mo LoBeau, now eleven, and her best friend Dale turn detective when the amnesiac Colonel, owner of a caf�e and co-parent of Mo with his cook, Miss Lana, seems implicated in a murder.

In the small city of Strattenburg there are many lawyers, and thirteen-year-old Theo Boone thinks he is one of them, but his inside knowledge of the justice system means trouble when a cold-blooded killer is about to go free and only Theo can stop him.

Twelve-year-old Emmy investigates the connection between her father's disappearance and a secret society at her prestigious English boarding school.

Nancy and her friends help a woman search for her missing grandson.