20 books • 3 series
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The Mystery at Mt. Fuji (Around the World in 80 Mysteries)
Mystery in the Amazon Rainforest
The Secret of Eyesocket Island (Pretty Darn Scary Mysteries)
Mystery at Fort Thunderbolt
Puzzle of the Shark Surfer Girl
Puzzle of the Indian Arrowhead
The Mystery on the Great Wall of China (Around the World in 80 Mysteries)
Ghost of Pickpocket Plantation
Secret of Skullcracker Swamp
The Mystery on the Great Barrier Reef (Around the World in 80 Mysteries)
The Mystery at Jamestown (Real Kids, Real Places)
Riddle of the Ooglie Booglie
The Mystery of the Ancient Pyramid (Around the World in 80 Mysteries)
The Mystery at the Roman Colosseum (Around the World in 80 Mysteries)
The Mystery on the Underground Railroad (Real Kids, Real Places)
Ghost of the Grand Canyon
The Mystery on the Mighty Mississippi (Real Kids, Real Places)
The Mystery at the Kentucky Derby (Real Kids, Real Places)
Mystery in the Rocky Mountains
