2,300 books • 186 series
Book #2: Dear Bats
Book #3: Dear Pirate, the Buried Treasure Mystery
Book #1: The Ghosts of Pickpocket Plantation
Book #2: The Secret of Skullcracker Swamp
Book #3: The Mystery at Fort Thunderbolt
Book #4: The Secret of Eyesocket Island
Book #1: The Ghost of Pickpocket Plantation
Book #1: The Mystery of the Biltmore House
Book #2: Mystery on the Freedom Trail
Book #2: Mystery of the Freedom Trail
Book #3: The Mystery of Blackbeard the Pirate
Book #3: The Mystery at Grizzly Graveyard
Book #4: The Mystery of the Alamo Ghost
Book #5: The Mystery on the California Mission Trail
Book #6: The Mystery of the Chicago Dinosaurs
Book #9: The Mystery at Kill Devil Hills
Book #35: The Mystery at Cape Cod
Book #36: The Mystery of the Lost Colony
Book #37: The Mystery at Death Valley
Book #38: The Mystery in the Smoky Mountains
Book #39: The Mystery at Mount Rushmore