Kit Livingstone is on the run, hunted by the Burley Men, as he tries to piece together a map that reveals the hidden dimensions of the multiverse. Kit, however, is not the only one traveling through time and space to influence the future of the future.

The Search for the Map-and the secret behind its cryptic code-intensifies in a quest across time, space, and multiple realities. But what if the true treasure isn't the map at all . . . what if the map marks something far greater? Something one world cannot contain? Those who desire to unlock that mystery are in a race to possess the secret-for good or evil. Kit Livingstone is mastering the ability to travel across realities using ley lines and has...

America's most celebrated astrophysicist invites young readers to explore the mysteries of the universe.

"A boy goes on a long car ride to visit his grandmother and discovers time moves faster or slower depending on how bored he is"--

Having upset the balance between the warring statues of London, twelve-year-old George is confronted with new challenges as he tries to free his captured friends Edie and The Gunner from the formidable Walker and deal with the three strange veins of marble, bronze, and stone that have begun to grow out of his hand.

Paragor unites with the Wyrm Lord and the Seven Sleepers to launch an assault on the kingdom of Alleble and its allies, who face the coming onslaught believing that they will be victorious with the help of the Three Witnesses.

When Rupert's friend Amelia is kidnapped by Mordo the warlock, Miss Switch the witch returns in the guise of a substitute teacher to help him rescue her.

"Kit, Mina, Gianni, Cass, Haven, and Giles have gathered in Mina's 16th-century coffee house and are united in their determination to find a path back to the Spirit Well. Yet, with their shadow lamps destroyed and key pieces of the map still missing, the journey will be far more difficult than they imagine. And when one of their own disappears with Sir Henry's cryptic Green Book, they no longer know who to trust"--Jacket.

After his parents are kidnapped, timid twelve-year-old Henry York leaves his sheltered Boston life and moves to small-town Kansas, where he and his cousin Henrietta discover and explore hidden doors in his attic room that seem to open onto other worlds.

Returned to the Earth of 2037 by the Firstborn, mysterious beings of almost limitless technological prowess, Bisesa Dutt is haunted by the memories of her five years spent on the strange alternate Earth called Mir, a jigsaw-puzzle world made up of lands and people cut out of different eras of Earth's history. Why did the Firstborn create Mir? Why was Bisesa taken there and then brought back on the day after her original disappearance? Bisesa's questions...