“Clarke and Baxter have mastered the art of saving the world in blockbuster style.”—Entertainment Weekly
Returned to the Earth of 2037 by the mysterious and powerful Firstborn, Bisesa Dutt is haunted by 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?...

When a father runs out to buy milk for his children's breakfast cereal, the last thing he expects is to be abducted by aliens, and he soon finds himself transported through time and space on an extraordinary adventure, where the fate of the universe depends on him and the milk--but will his children believe his wild story?

Among the ashes of a dying world, an agent of the Commandant finds a letter. It reads: Burn before reading. Thus begins an unlikely correspondence between two rival agents hellbent on securing the best possible future for their warring factions. Now, what began as a taunt, a battlefield boast, grows into something more. Something epic. Something romantic. Something that could change the past and the future. Except the discovery of their bond would...

Jack and Annie are joined by Teddy and Kathleen as they travel to the snowy Land-Behind-the-Clouds, where they search for the eye of the Ice Wizard and attempt to help Merlin and Morgan.

"You'd think that being chief seer for the supernatural world would come with a few perks. But as Cassie Palmer has learned, being Pythia doesn't mean you don't have to do things the hard way. That's why she finds herself on a rescue mission skipping through time--even though she doesn't entirely understand her dimension-bending new power. Rescuing her friend John Pritkin should have been an in-and-out kind of deal, but with the near-immortal mage's...

What is the nature of space and time? How do we fit within the universe? How does the universe fit within us? Today, few of us have time to contemplate the cosmos. Now Neil deGrasse Tyson brings the universe down to Earth succinctly and clearly, with sparkling wit, in tasty chapters consumable anytime and anywhere in your busy day.

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.

The thrilling conclusion to the internationally bestselling Long Earth series explores the greatest question of all: What is the meaning of life? 2070-71. Nearly six decades after Step Day, a new society continues to evolve in the Long Earth. Now, a message has been received: "Join us." The Next{u2014}the hyper-intelligent post-humans{u2014}realize that the missive contains instructions for kick-starting the development of an immense artificial intelligence...

The magic tree house whisks Jack and Annie away to Australia where they must save some animals from a wildfire.

The publication in 1927 of Martin Heidegger's magnum opus, Being and Time, signaled an intellectual event of the first order and had an impact in fields far beyond that of philosophy proper. Being and Time has long been recognized as a landmark work of the twentieth century for its original analyses of the character of philosophic inquiry and the relation of the possibility of such inquiry to the human situation. Still provocative and much disputed,...