When Mattie, Sophie, and Alex travel back in time to the Chicago World's Fair of 1893, they decide to help Harry Houdini's failing magic show, but they find themselves in need of help when they are accused of stealing a priceless diamond.
With the aid of the magic spyglass, Mattie, Alex, and Sophie Chapman are transported to Mount Rushmore during its construction and help save the face of Thomas Jefferson. Includes facts about the monument and directions for making a pulley-drawn cable.
The time travel missions continue for Mattie, her brother Alex, and sister Sophie when they meet the superstitious villagers in Washington Irving's classic story "The Legend of Sleepy Hollow," and must help fearful Ichabod Crane win the heart of Katrina Van Tassel.
When the magical spyglass transports the three Chapman children to 1938 Maryland, they attend the race between two champion racehorses--War Admiral, the high-spirited favorite, and Seabiscuit, the western underdog.
When the magic spyglass transports Mattie, Alex, and Sophie Chapman to the Yukon Territory during the gold rush, they enlist the help of author Jack London to track down a boy's stolen sled dog.