detective and mystery stories

Frank and Joe investigate the disappearance of an exotic mask.

Frank and Joe Hardy search for clues to solve the mystery of the Beast-o-matic, which crazy inventor Mike Mendez has apparently used to turn their friend Chuck into a dog.

The Aldens investigate when the arrival of several suspicious characters in Greenfield coincides with a mystery involving a popular boy actor.

Christina and Grant, while on a trip with their grandparents to Niagara Falls, discover mysterious barrels tumbling down from the falls.

A fifth-grader with a photographic memory and her friend Eric help solve the mystery of the stolen diamonds.

The Baker Street Irregulars return to help Sherlock Holmes with a strange mystery involving murder, abduction, and a search for lost treasure, and when a personal friend of Holmes disappears, the gang tries to determine whether there is a traitor in their ranks.

Amateur sleuth Alec and his sidekick Gina investigate when the Christopher Columbus exhibit disappears from the museum.

The ragtag group of orphan boys known as the Baker Street Irregulars faces shady characters and seemingly real ghosts when they assist the famous detective, Sherlock Holmes, in investigating the mysterious death of Greta Berlinger during a s?ance.

Baron has always dreamed of following in the footsteps of his favorite detectives, and when a new client asks Baron's backyard detective agency for help, Baron believes he may finally have a chance to prove he is as tough and in control as his heroes.

Petra and Calder are drawn into another mystery when unexplained accidents and ghostly happenings occur in Frank Lloyd Wright's Robie House.