The essential universe, from our most celebrated and beloved astrophysicist. What is the nature of space and time? How do we fit within the universe? How does the universe fit within us? There's no better guide through these mind-expanding questions than acclaimed astrophysicist and best-selling author Neil deGrasse Tyson. But today, few of us have time to contemplate the cosmos. So Tyson brings the universe down to Earth succinctly and clearly, with...

One night after an evening out, Jason Dessen, forty-year-old physics professor living with his wife and son in Chicago, is kidnapped at gunpoint by a masked man, driven to an abandoned industrial site and injected with a powerful drug. As he wakes, a man Jason's never met smiles down at him and says, Welcome back, my friend. But this life is not the one he knows. His wife is not his wife; his son was never born; and he's not an ordinary college professor,...

Danny, his younger brother Wayne, and their bossy cousin Michelle are transported to a parallel world, where they help the people of Marus overcome their slavery and reclaim their homeland.

A young girl is troubled by dreams and fantasies which parallel the life of another girl who lived over two hundred years before.

An American tourist takes a walk on hot coals and undergoes a space time transition.

After donning an antique wedding dress, celebrated chef Kady Long finds herself transported back in time to nineteenth-century Colorado, where she is tricked into marrying the man she saves from hanging, a man who harbors a painful secret about his p

Jason and Rachel's adventures and friendships have made Lyrian more of a home to them than they could have imagined, so now, armed with the prophecy of a dying oracle, they are ready to become Lyrian's heroes whatever the cost to themselves.

In How to Build a Time Machine, Brian Clegg provides an understanding of what time is and how it can be manipulated. He explores the remarkable possibilities of real time travel that emerge from quantum entanglement, superluminal speeds, neutron star cylinders and wormholes in space. With the fascinating paradoxes of time travel echoing in our minds will we realize that travel into the future might never be possible? Or will we realize there is no...

In this third book about Omri and his magic cupboard, Omri and his friend Patrick must risk grownups' discovering their secret when they find themselves in need of a friend's toy plastic doctors to save wounded people from the dangerous world of the