Through an heirloom music box, Leo, a serious, responsible boy, and his badly-behaved cousin Mimi enter the magical world of Rondo to rescue Mimi's dog from a sorceress, who wishes to exchange him for the key that allows free travel between worlds.

As an apprentice on a training mission to 1912 England, Dorrie takes a chance that could lead the Strongholders to the Lybrarians' fortress, Petrarch's library.

As a seventeen-year-old sophomore at NYU, Casey wears different disguises to fit in, but when she starts hearing voices and seeing visions, she travels to a remote beach town and searches for answers.

Ten-year-old Matt and six other children travel to 1776 Boston, living out American history as they meet Benjamin Franklin, learn about colonial medicine, and become part of a rebel spy ring.

"When a mysterious oil lantern and a box of painted slides appear at Blackhope Tower, Sunni and Blaise are drawn back to the place where their adventures first began. When they discover that the slides conceal secrets about artist-magician Fausto Corvo, the pair find themselves once again caught up in a deadly pursuit."--Amazon.com.

Timothy James, his sister Sarah, and their friend Jessica race against time and an ancient Evil to save their mother and restore peace and harmony to the Travelers Market. Includes glossary and a map with a code for readers to decipher.

In two parallel universes, eighteen-year-old Chris navigates the summer before college--in one universe he is forced to spend three months with his emotionally distant father in California, and in the other he remains home and deals with a swiftly changing friendship.

Twelve-year-old William uses the magic token to return, through the toy castle in his attic, to the medieval land of Sir Simon, which is now menaced by a skeleton ship bearing a plague of ravenous rats.

After returning the missing children from history to their original time periods, thirteen-year-old Jonah must save time itself when aviator Charles Lindbergh mysteriously appears and kidnaps Jonah's sister.

As the Scion's guardian, Johnny Turnbull is expected to begin training as a Space Jumper, a role he promised his girlfriend Max he would never take on, and which might not be enough to save his sister and friends when Orbis is threatened.