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.

Danny and Calvin decide to find out why their fourth-grade teacher, Mrs. Cakel, is suddenly behaving very strangely by not only failing to enforce her many rules, but by violating some herself.

When a cat appears in their classroom one rainy day, Cam and her friend Eric figure out where it came from.

On her first day of fifth grade, Cam Jansen uses her photographic memory to help the police find a car thief. Includes a memory game.

Detective Jeffrey Bones finds he does not need fancy equipment to solve the school-lunch mystery of Not Me Amy's missing cupcake.

Detective Jeffrey Bones hates taking math tests, especially one he has forgotten to study for, so when his test paper goes missing he must make a choice--retake the test and try to do better, or find the missing paper.

Preoccupied with the impending arrival of his new baby brother or sister, fourth grader Andy gets in lots of trouble at home and at school.

Andy and Tamika are watching their neighbor's house while they are away, but when strange and troubling things start happening inside the house, the police do not believe the children.

Cam uses her photographic memory to help a classmate find the tooth she lost at school.

Daydreaming in class is causing troubles for Andy Russell, especially in Ms. Roman's math class. When she's out sick and the class gets a substitute teacher, Andy hopes he'll get a break. Instead, things go from bad to worse when Andy gets blamed for things he isn't even doing! Class room angst is cleverly explored in this third book in the series about the likable fourth grader who learns that maybe teachers aren't always as bad as they seem.