1The Mystery of the Missing Pimento Cheese Recipe
2The Mystery of the Mammal Island
3The Mystery of the Strawberry Patch
4The Mystery of the Adventures of Pon-Pon
5The Mystery of the Marauding Mascot
Richardsville High School cancels its mascot and when the new one goes too far John and David must clear his name.
6The Mystery of Meg's Extremely Violent and Inappropriate Musical
John and David join the cast "I Sing On Your Grave" and must sing their way to a solution.
7The Mystery of the Golden Lungs
8The Mystery of Dr. Marjorie Frost
9The Mystery of Lance's Lesson
10The Mystery of the Decades-Old Mystery