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...

When fifth-grader Cam notices that the prizes for the most difficult game at the school carnival are rapidly disappearing, she uses her amazing photographic memory to investigate

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

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's 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

Cam investigates when a thief steals her mother's video camera and a tape containing footage of a big scary snake

Fifth-grade sleuth Cam Jansen uses her photographic memory to solve a monkey-smuggling mystery at the city zoo

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

Cam Jansen and her photographic memory help her friend's grandfather retrieve his missing bag with an important graduation gift in it

When Cam, her friend Eric, and her father stop for pizza while they are at the mall, Cam must rely on her photographic memory to locate her missing jacket