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E1 The Mystery of the Missing Pimento Cheese Recipe
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E2 The Mystery of the Mammal Island
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E3 The Mystery of the Strawberry Patch
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E4 The Mystery of the Adventures of Pon-Pon
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E5 The 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.
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E6 The 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.
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E7 The Mystery of the Golden Lungs
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E8 The Mystery of Dr. Marjorie Frost
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E9 The Mystery of Lance's Lesson
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E10 The Mystery of the Decades-Old Mystery