Someone stole 'Old Rusty,' Ralphie Jordan's trusty bicycle. Jigsaw and Mila hit the trail to track down the thief. But one piece of the puzzle doesn't fit. Who would take a hand-me-down bike? Solving this case is an uphill ride for ace detectives Jigsaw and Mila.

Cam and her friend Eric chase the thief of Aunt Katie's wallet through an amusement park and find themselves involved in another case requiring their special detective skills.

A chance meeting with a stranger on the road provides the Hardy brothers with a clue to a gang of local burglars.

While trying to recover a set of stolen parchment paintings, Nancy Drew becomes involved in tracking a kidnapper and extortionist.

When Cam Jansen and her friend Eric uncover a mystery while selling fudge door-to-door to raise money for the local library, Cam uses her photographic memory to foil a crime.

Dunkum follows a trail of secret coded messages to find his missing autographed basketball.

On a winter vacation in Jamaica the Hardy boys begin a dangerous adventure when an ancient bronze death mask is discovered near their beach house.

The intrepid Herculeah Jones helps her mother, a private investigator, solve a puzzling and frightening case.

Two twelve-year-old detectives solve a series of mysteries using sketches of important clues.

The children are spending the summer on their own private island but there is a mysterious stranger on the island.