Somewhere on the frontier between thought and reality exists the Discworld, a parallel time and place that might sound and smell very much like our own, but which looks completely different. Particularly as it’s carried though space on the back of a giant turtle (sex unknown). It plays by different rules. But then, some things are the same everywhere. The Disc’s very existence is about to be threatened by a strange new blight: the world’s first tourist, upon whose survival rests the peace and prosperity of the land.

Not just another science audiobook and not just another Discworld novella, The Science of Discworld is a creative, mind-bending mash-up of fiction and fact, that offers a wizard’s-eye view of our world that will forever change how you look at the universe.

A storm. Rain-lashed city streets. A flash of lightning. A scruffy lad sees a girl leap desperately from a horse-drawn carriage in a vain attempt to escape her captors. Can the lad stand by and let her be caught again? Of course not, because he's...Dodger. Seventeen-year-old Dodger may be a street urchin, but he gleans a living from London's sewers, and he knows a jewel when he sees one. He's not about to let anything happen to the unknown girl - not even if her fate impacts the most powerful people in England.

A nightmarish danger threatens from the other side of reality. . . . Armed with only a frying pan and her common sense, young witch-to-be Tiffany Aching must defend her home against the monsters of Fairyland. Luckily she has some very unusual help: the local Nac Mac Feegle—aka the Wee Free Men—a clan of fierce, sheep-stealing, sword-wielding, six-inch-high blue men.

Somewhere on the frontier between thought and reality exists the Discworld, a parallel time and place which might sound and smell very much like our own, but which looks completely different. Collected together for the first time are seven full-cast BBC Radio dramatisations of Terry Pratchett’s novels, with star-studded casts including Martin Jarvis, Sheila Hancock, Anton Lesser, Philip Jackson, Alex Jennings and Mark Heap.

The world will end on Saturday. Next Saturday. Just before dinner, according to The Nice and Accurate Prophecies of Agnes Nutter, Witch, the world's only completely accurate book of prophecies, written in 1655. The armies of Good and Evil are amassing and everything appears to be going according to Divine Plan. Except that a somewhat fussy angel and a fast-living demon are not actually looking forward to the coming Rapture. And someone seems to have misplaced the Antichrist.

The very far future: The galaxy is a drifting wreck of black holes, neutron stars, and chill white dwarfs. The age of star formation is long past. Yet there is life here, feeding off the energies of the stellar remnants, and there is mind, a tremendous galaxy-spanning intelligence each of whose thoughts lasts a hundred thousand years. And this mind cradles memories of a long-gone age when a more compact universe was full of light... The 27th century: Proxima Centauri, an undistinguished red dwarf star, is the nearest star to our sun. How would it be to live on such a world?

Thirteen-year-old Mau is the only one left after a giant wave sweeps his island village away. But when much is taken, something is returned, and somewhere in the jungle, Daphne - a girl from the other side of the globe - is the sole survivor of a ship destroyed by the same wave.

Hackett, in his trusty ship the Perseus, is not just a space traveller—beginning his travels with an expedition to Neptune and back—but, thanks to the time-dilation effect, a time traveller as well. His new mission will take him to Andromeda, to get a close-up look at the constellation which will eventually crash into the Milky Way, and give humanity a heads-up about the challenges which are coming. A mission which will take him five million years to complete. Not only is Hackett exploring unknown space, but he will return to a vastly different time.

An epic saga of America’s might-have-been, Voyage is a powerful, sweeping novel of how, if President Kennedy had lived, we could have sent a manned mission to Mars in the 1980s. Imaginatively created from the true lives and real events, Voyage returns to the geniuses of NASA and the excitement of the Saturn rocket and includes historical figures from Neil Armstrong to Ronald Reagan who are interwoven with unforgettable characters whose dreams mirror the promise of a young space program that held the world in thrall.

To the thousands of tiny nomes who live under the floorboards of a large department store, there is no outside. Things like day and night, sun and rain are just daft old legends. Then a devastating piece of news shatters their existence: the Store, their whole world, is to be demolished.

A wonderful collection of short stories by master storyteller Sir Terry Pratchett, featuring dragons, dinosaurs, cavemen and car races! Dragons have invaded Crumbling Castle, and all of King Arthur's knights are either on holiday or visiting their grannies. It's a disaster! Luckily, there's a spare suit of armour and a very small boy called Ralph who's willing to fill it. Together with Fortnight the Friday knight and Fossfiddle the wizard, Ralph sets out to defeat the fearsome fire-breathers.

The Covenant mission is the most ambitious endeavor in the history of Weyland-Yutani. A ship bound for Origae-6, carrying 2,000 colonists beyond the limits of known space, this is a make-or-break investment for the corporation - and for the future of all mankind. Yet there are those who would die to stop the mission. As the colony ship hovers in Earth orbit, several violent events reveal a deadly conspiracy to sabotage the launch.

There are some odd things about Nate’s new apartment. Of course, he has other things on his mind. He hates his job. He has no money in the bank. No girlfriend. No plans for the future. So while his new home isn’t perfect, it’s livable. The rent is low, the property managers are friendly, and the odd little mysteries don’t nag at him too much. At least, not until he meets Mandy, his neighbor across the hall, and notices something unusual about her apartment. And Xela’s apartment. And Tim’s. And Veek’s.

There's a reason We Are Legion was named Audible's Best Science Fiction Book of 2016: Its irresistibly irreverent wit! Bob Johansson has just sold his software company for a small fortune and is looking forward to a life of leisure. The first item on his to-do list: Spending his newfound windfall. On an urge to splurge, he signs up to have his head cryogenically preserved in case of death. Then he gets himself killed crossing the street. Waking up 117 years later, Bob discovers his mind has been uploaded into a sentient space probe with the ability to replicate itself.

It isn’t easy to get a group of bestselling SF authors to write new stories for an anthology, but that’s what Elizabeth Anne Hull has done in this powerhouse book. With original, captivating tales by Greg Bear, Gregory Benford, Ben Bova, David Brin, Cory Doctorow, Neil Gaiman, Joe Haldeman, Harry Harrison, Larry Niven, Vernor Vinge, Gene Wolfe, and others, Gateways is a SF event that will be a must-buy for SF readers of all tastes, from the traditional to the cutting edge; from the darkly serious to the laugh-out-loud funny.

An undeciphered language in Crete. A rash of mysterious disappearances, from Bolivia to Japan. An ancient warning at the ruins of Babel. And a new spiritual leader, who claims that human history as we understand it is about to come to an end.

The best stories pull readers in and keep them turning the pages, eager to discover more—to find the answer to the question: "And then what happened?" The true hallmark of great literature is great imagination, and as Neil Gaiman and Al Sarrantonio prove with this outstanding collection, when it comes to great fiction, all genres are equal.

The very far future: The galaxy is a drifting wreck of black holes, neutron stars, and chill white dwarfs. The age of star formation is long past. Yet there is life here, feeding off the energies of the stellar remnants, and there is mind, a tremendous galaxy-spanning intelligence each of whose thoughts lasts a hundred thousand years. And this mind cradles memories of a long-gone age when a more compact universe was full of light... The 27th century: Proxima Centauri, an undistinguished red dwarf star, is the nearest star to our sun. How would it be to live on such a world?

The best-selling author of the classic Mars trilogy and The Years of Rice and Salt returns with a riveting new trilogy of cutting-edge science, international politics, and the real-life ramifications of global warming as they are played out in our nation's capital - and in the daily lives of those at the center of the action. Hauntingly realistic, here is a novel of the near future that is inspired by scientific facts already making headlines. BONUS AUDIO: Includes an exclusive introduction by author Kim Stanley Robinson.

Niblock House is a rising executive at General Technics, one of a few all-powerful corporations. His work is leading General Technics to the forefront of global domination, both in the marketplace and politically - it's about to take over a country in Africa. Donald Hogan is his roommate, a seemingly sheepish bookworm. But Hogan is a spy, and he's about to discover a breakthrough in genetic engineering that will change the world...and kill him. Society is squeezed into hive-living madness by god-like mega computers and mass-marketed psychedelic drugs.

Armed camps of eco-survivalists battle purveyors of technology in this exclusive, original production featuring five sci-fi masters and five all-star narrators.

Billionaire Saul Abercrombie owns a vast tract of land on the Pembrokeshire coast. By restoring the original forest that covered the area before medieval times, he believes he will rekindle the spirits of ancient folklore. But the re-planting of the forest will revive an altogether darker and more dangerous entity - and young arboreal expert Tom Curtis will find himself engaging in an epic, ancient battle between good and evil. A battle in which there can be only one survivor.

Earth is being invaded by the shetani - spirit creatures so small and stealthy that only one man knows about the increasing peril. The potential savior is an African elder named Olkeloki who is capable of fighting evil both in this world and the spirit one. But to be successful he must recruit the help of two others: government agent Joshua Oak, and a feisty young woman named Merry Sharrow. Only the three of them can keep the shetani from destroying reality as we know it.

Humans beware. As the robotic revolution continues to creep into our lives, it brings with it an impending sense of doom. What horrifying scenarios might unfold if our technology were to go awry? From self-aware robotic toys to intelligent machines violently malfunctioning, this anthology brings to life the half-formed questions and fears we all have about the increasing presence of robots in our lives.

Surviving 60,000 years takes cunning and more than a little luck. But in the 21st century, Adam confronts new dangers - someone has found out what he is, a demon is after him, and he has run out of places to hide. Worst of all, he has had entirely too much to drink.

Lester Ferris needs a rest. He's spent his life being shot at, and Afghanistan was the last stop on his road to exhaustion. Mancreu is the ideal place for Lester to relax. A former British colony, soon to be destroyed because of its very special version of toxic pollution. But Lester Ferris makes a friend: a street kid with a comicbook fixation who will need a home - who might, Lester hopes, become an adopted son. But in a place like Mancreu, just what sort of hero will the boy need?

It begins as a statistical oddity: a spike in children born with acute speech delays. Physically normal in every way, these children never speak and do not respond to speech; they don't learn to read, don't learn to write. As the number of cases grows to an epidemic level, theories spread. Maybe it's related to a popular antidepressant; maybe it's environmental. Or maybe these children have special skills all their own.

When a tremendous spacecraft takes orbit around Earth's moon and begins sending smaller landers down toward the North Pole, the newly arrived visitors quickly set up a permanent spaceport in Siberia. Their presence attracts many, including Rick Schumann, who establishes a tavern catering to all the various species of visiting aliens, a place he calls the Draco Tavern. From the mind of best-selling author Larry Niven come 27 tales and vignettes from this interstellar gathering place.

Humans call them Monument-Makers. An unknown race, they left stunning alien statues scattered on distant planets throughout the galaxy, encoded with strange inscriptions that defy translation. Searching for clues about the Monument-Makers, teams of 23rd century linguists, historians, engineers and archaeologists have been excavating the enigmatic alien ruins on a number of planets, uncovering strange, massive false cities made of solid rock. But their time is running out.

An epic saga of America’s might-have-been, Voyage is a powerful, sweeping novel of how, if President Kennedy had lived, we could have sent a manned mission to Mars in the 1980s. Imaginatively created from the true lives and real events, Voyage returns to the geniuses of NASA and the excitement of the Saturn rocket and includes historical figures from Neil Armstrong to Ronald Reagan who are interwoven with unforgettable characters whose dreams mirror the promise of a young space program that held the world in thrall.

The very far future: The galaxy is a drifting wreck of black holes, neutron stars, and chill white dwarfs. The age of star formation is long past. Yet there is life here, feeding off the energies of the stellar remnants, and there is mind, a tremendous galaxy-spanning intelligence each of whose thoughts lasts a hundred thousand years. And this mind cradles memories of a long-gone age when a more compact universe was full of light... The 27th century: Proxima Centauri, an undistinguished red dwarf star, is the nearest star to our sun. How would it be to live on such a world?

Hackett, in his trusty ship the Perseus, is not just a space traveller—beginning his travels with an expedition to Neptune and back—but, thanks to the time-dilation effect, a time traveller as well. His new mission will take him to Andromeda, to get a close-up look at the constellation which will eventually crash into the Milky Way, and give humanity a heads-up about the challenges which are coming. A mission which will take him five million years to complete. Not only is Hackett exploring unknown space, but he will return to a vastly different time.

When prospector Bob Broadhead went out to Gateway on the Heechee spacecraft, he decided he would know which was the right mission to make him his fortune. Three missions later, now famous and permanently rich, Robinette Broadhead has to face what happened to him and what he is...in a journey into himself as perilous and even more horrifying than the nightmare trip through the interstellar void that he drove himself to take!

An alternative history of the US space programme, dramatised by Dirk Maggs. What if John F. Kennedy survived the assassination attempt and developed the space programme? President Nixon, with the help of former president JFK, has just green-lit NASA’s first manned expedition to Mars. Aboard the expedition is Natalie York, a geologist who risks everything she loves for the chance to go to space; Phil Stone, former X-15 test pilot; and Ralph Gershon, a Vietnam War hero intent on being the first African American to reach another planet.

This classic chiller, when adapted for radio in 1938 by Orson Welles, was realistic enough to cause widespread panic throughout the United States.

Thirteen-year-old Mau is the only one left after a giant wave sweeps his island village away. But when much is taken, something is returned, and somewhere in the jungle, Daphne - a girl from the other side of the globe - is the sole survivor of a ship destroyed by the same wave.

The Light of Other Days tells the tale of what happens when a brilliant, driven industrialist harnesses the cutting edge of quantum physics to enable people everywhere, at trivial cost, to see one another at all times: around every corner, through every wall, into everyone's most private, hidden, and even intimate moments. It amounts to the sudden and complete abolition of human privacy - forever.

To the thousands of tiny nomes who live under the floorboards of a large department store, there is no outside. Things like day and night, sun and rain are just daft old legends. Then a devastating piece of news shatters their existence: the Store, their whole world, is to be demolished.

Howard Falcon almost lost his life in an accident as the first human astronaut to explore the atmosphere of Jupiter - and a combination of human ingenuity and technical expertise brought him back. But he is no longer himself. Instead he has been changed into an augmented human: part man, part machine, and exceptionally capable.

By the middle of the 21st century, humanity has managed to overcome a series of catastrophic events and maintain some sense of stability. Space exploration has begun again. Science has led the way. But then one day, the sun goes out. Solar panels are useless, and the world begins to freeze. Earth begins to fall out of its orbit. The end is nigh. Someone has sent us a sign.