A thirteen-year-old boy's trip to Venezuela with his cousin culminates in murder and the discovery of an unexpected bond with an Indian tribe, dating from the days of Simon Bolivar.

When parts of outdoor Christmas displays go missing from neighborhood yards, nine-year-old Alex and his friend Yasmeen investigate.

Cam uses her photographic memory to catch a thief disguised as a ghost.

Chief Inspector Albert the duck and his three detective assistants follow a series of clues to find the batch of pumpkins stolen from the town pumpkin patch.

On Halloween night, four children find a dead body wearing red shoes in the local cemetary, and decide to investigate the murder when the shoes reappear a week later in a painting displayed at the local art gallery.

While helping their grandfather prepare for Greenfield's Winter Festival, the Alden children uncover a mystery surrounding the statue in the town square.

The Aldens become involved in a community theater production of "The Wizard of Oz", which is systematically and mysteriously being sabotaged.

While camping in the wilds of California, Melanie and Cameron get captured by a condor, but soon learn the truth about the whole scene.

Herculeah meets a murder mystery writer, and has the uneasy feeling that he knows more about murder than he should.

When a woman's poodle disappears during a boat ride around the city, Cam uses her photographic memory to solve the mystery.