Cam Jansen and her friend Eric are spending the day at the amusement park. They take Cam's aunt and uncle with them through the scary haunted house. Plastic skeletons hang from the ceiling. A large black form jumps out of the shadows of a dark room. Everyone has a wonderful time until they get hungry and thirsty. When Cam's aunt tries to pay for some snacks, she discovers her wallet is no longer in her purse. Will Cam be able to solve the mystery...

Cam and her friend Danny help solve the mystery of a stolen pearl necklace when the governor comes to visit their school for the dedication of the new library.

While Cam's Aunt Molly is competing in a comedy contest, the expensive plate the winner will receive disappears and Cam and Eric set out to find it before the contest is over.

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.

This time Cam Jansen relies on her hearing rather than her photographic memory to find a missing classmate.

On a field trip to the zoo, Cam Jansen uses her photographic memory to help solve what happened to Danny's lunch.

Ten-year-old Cam, possessor of a photographic memory, and her friend Eric investigate what seems to be a brief appearance of U.F.O.s.

On Green Day, Cam and her classmates discuss ways to protect the environment, but when money collected for the school's new skylights disappears, Cam uses her photographic memory to solve the mystery.

Cam's photographic memory helps a scatterbrained substitute teacher, especially when he discovers that he has misplaced his coat.

When Aunt Molly takes Cam and her friend Eric to the circus, their box of caramel popcorn mysteriously disappears.