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.

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.

Since the siblings' last adventure, life in the Walker household is much improved -- the family is rich and the Wind Witch is banished. But no Walker will be safe until she is found. Summoning her to San Francisco brings all the danger that comes with her, and puts the Walkers in the crosshairs of a mysterious journey through Denver Kristoff's books. As the Walkers travel from ancient Rome to World War II to Tibet, they are tested in ways that cut...

With the aid of their magical spyglass, Mattie, Alex, and Sophie Chapman travel to Washington, D.C., during the War of 1812 to help Dolley Madison.

Ruthie thinks nothing exciting will ever happen to her until her sixth-grade class visits the Art Institute of Chicago, where she and her best friend Jack discover a magic key that shrinks them to the size of gerbils and allows them to explore the Thorne Rooms--the collection of sixty-eight miniature rooms from various time periods and places--and discover their secrets.

Alex and his sisters travel back in time to the Chicago World's Fair of 1893, where they work with young Harry Houdini to track down a thief.

Chicago sixth-graders Jack and Ruthie return to the Thorne Rooms at the Art Institute of Chicago and once again go back in time while trying to stop an art thief from endangering the miniature rooms.

"With their last adventure just barely over, the Walker kids thought life would finally go back to normal. But things don't remain calm for long... especially when the colossus Fat Jagger turns up in San Francisco Bay--and he's in danger! With the police closing in, the Walkers must figure out how to save their giant friend. When a frost beast is spotted in Santa Rosa--and more mystical creatures start appearing all over America--it's soon clear that...

Soon after Peter, an orphan, sets sail from England on the ship Never Land, he befriends and assists Molly, a young Starcatcher, whose mission is to guard a trunk of magical stardust from a greedy pirate and the native inhabitants of a remote island.