When she notices some bones missing from a dinosaur skeleton exhibited in the museum, a young girl with a photographic memory tries to discover who has been taking them and why.

Cam's scatterbrained aunt is always losing things, but when Aunt Molly can't find her wallet at the circus, Cam's sure there's a thief under the big top. It looks like the clown is the culprit, but he seems to have disappeared without a trace. Or has he?

A fifth-grader uses her photographic memory, her mother, and her friend Eric to find a missing reel of a monster film they go to see.

Fifth grade sleuth Cam Jansen and her friend Eric combine wits to solve the disappearance of a young French girl.

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

While visiting Aunt Molly at a fancy downtown hotel, Cam uses her photographic memory to help one of the guests find her stolen luggage and pet cat, and to catch the thief.

Cam Jansen battles a famous children's mystery writer to see who can solve the case of the stolen car.

Cam uses her photographic memory to track down a missing gift sent by Grandpa Shelton to Eric's father, who is finally graduating from college.