#1 The Mystery of Biltmore House

#2 The Mystery on the Freedom Trail

#3 The Mystery of Blackbeard The Pirate

#4 The Mystery of the Alamo Ghost

#5 The Mystery of the California Mission Trail

#6 The Mystery of the Missing Dinosaurs

#7 The White House Christmas Mystery

#8 The Mystery of the Iditarod Trail

#9 The Mystery at Kill Devil Hills

#10 The Mystery in New York City

#11 The Mystery at Disney World

#12 The Mystery on the Underground Railroad

#13 The Mystery in the Rocky Mountains

#14 The Mystery on the Mighty Mississippi

#15 The Mystery at the Kentucky Derby

#16 The Mystery of the Grand Canyon

#17 The Mystery at Jamestown

#18 The Mystery in Chocolate Town...Hershey, Pennsylvania

#19 The Gosh Awful Gold Rush Mystery

#20 The Counterfeit Constitution Mystery