Seth is a surveyor, along with his friend Theo, a leech-like creature running through his skull who tells Seth what lies to his left and right. Theo, in turn, relies on Seth for mobility, and for ordinary vision looking forwards and backwards. Like everyone else in their world, they are symbionts, depending on each other to survive. In the universe containing Seth's world, light cannot travel in all directions: there is a “dark cone” to the north and south. Seth can only face to the east (or the west, if he tips his head backwards). If he starts to turn to the north or south, his body stretches out across the landscape, and to rotate as far as north-north-east is every bit as impossible as accelerating to the speed of light. Every living thing in Seth’s world is in a state of perpetual migration as they follow the sun’s shifting orbit and the narrow habitable zone it creates. Cities are being constantly disassembled at one edge and rebuilt at the other, with surveyors mapping safe routes ahead. But when Seth and Theo join an expedition to the edge of the habitable zone, they discover a terrifying threat: a fissure in the surface of the world, so deep and wide that no one can perceive its limits. As the habitable zone continues to move, the migration will soon be blocked by this unbridgeable void, and the expedition has only one option to save its city from annihilation: descend into the unknown.

In Yalda's universe, light has no universal speed and its creation generates energy. On Yalda's world, plants make food by emitting their own light into the dark night sky. As a child, Yalda witnesses one of a series of strange meteors, the Hurtlers, that are entering the planetary system at an immense, unprecedented speed. It becomes apparent that her world is in imminent danger — and the task of dealing with the Hurtlers will require knowledge and technology far beyond anything her civilization has yet achieved! Only one solution seems tenable: if a spacecraft can be sent on a journey at sufficiently high speed, its trip will last many generations for those on board, but it will return after just a few years have passed at home. The travelers will have a chance to discover the science their planet urgently needs, and bring it back in time to avert disaster.

As a young boy, Prabir Suresh lives with his parents and sister on an otherwise uninhabited island in a remote part of the Indonesian peninsula. Prabir names it Teranesia, populating it with imaginary creatures even stranger than the evolutionarily puzzling butterflies that his parents are studying. Civil war strikes, orphaning Prabir and his sister. Eighteen years later, rumours of bizarre new species of plants and animals being discovered in the peninsula that was their childhood home draw Prabir's sister back to the island - Prabir cannot bear for her to have gone out alone and he follows, persuading a pharmaceutical researcher to take him along as a guide.

Immortality can be yours . . . at a price Permutation city is the tale of a man with a vision - how to create immortality - and how that vision becomes grows beyond his control. Encompassing the lives and struggles of an artificial life junkie desperate to save her dying mother, a billionaire banker scarred by a terrible crime, the lovers for whom, in their timeless virtual world, love is not enough - and much more - Permutation city is filled with the sense of wonder and dread. Can what makes you human be distilled into data? And what happens if you can't afford to pay? Readers are having their minds blown by PERMUTATION CITY: "Egan tells the story masterfully. I can only marvel at how he finds his inspiration for a high-tech tale in an ancient wisdom like Kabbalah, and then proceeds to out-Kabbalah even the Kabbalists with his creativity" - Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐ "Egan questions what it really means to be human in a way that it's quite unsurpassed in my mind" - Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐ "THIS is why I read SF. THIS is the sense of wonder I'm looking for in a SF story. Forget everything you read about virtual reality, artificial life & consciousness - nothing compares to the concepts and the worldbuilding in this book. This is ultimate postcyberpunk ever" - Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐ "I can say without qualification that Greg Egan is the greatest science fiction author I've ever read" - Goodreads reviewer, ⭐ ⭐ ⭐ ⭐ ⭐

Greg Egan is arguably Australia's greatest living science fiction writer. In a career spanning more than thirty years, he has produced a steady stream of novels and stories that address a wide range of scientific and philosophical concerns: artificial intelligence, higher mathematics, science vs religion, the nature of consciousness, and the impact of technology on the human personality. All these ideas and more find their way into this generous and illuminating collection, the clear product of a man who is both a master storyteller and a rigorous, exploratory thinker. The Best of Greg Egan contains twenty stories and novellas arranged in chronological order, and each of them is a brilliantly conceived, painstakingly developed gem, including the Hugo Award-winning novella "Oceanic", a powerful account of a boy whose deeply held religious beliefs are undermined by what he comes to learn about the laws of the physical world. This book really does represent the best of Greg Egan, and it therefore takes its place among the best of contemporary SF. Startling, intelligent and always hugely entertaining, it provides an ideal introduction to one of the most accomplished and original writers working today. This is an important and provocative collection, and it deserves a place on the serious science fiction reader's permanent shelf.

On the utopian, man-made island, Stateless, Nobel Prize winner Violet Mosala is close to solving the greatest problem of her career - the quest for the ultimate Theory of Everything (TOE) is almost over. Burned out by recording the abuses of biotech for his TV news syndicate, Andrew Worth grabs the chance to follow Violet's story. In contrast the world of theoretical physics seems like an anaesthetised mathematical heaven, where everything is cool and abstract. He could not have been more wrong. One by one Mosala's rival quantum physicists are disappearing from the scientific summit at Stateless. But why? Is it something to do with Violet herself, or is there some other, more esoteric, force at work undermining the Theory of Everything Conference?

It's late in the 21st century and bioengineering is now so common that people are able to modify their minds in any way they wish. It is an era which has been shaped by information systems so vast that security, in any form, is easily breached. Now you can be whatever you want to be, and do whatever you want to do. On Earth anyway. One night, thirty three years ago, the stars went out. 'The Bubble' - a perfect sphere centred on the sun - appeared in the sky, isolating the solar system from the rest of the universe. For thirty-three years, humanity has lived with the religious cults and terrorism which spawned in the wake of the darkness. We are now alone. Humanity has been cut off. Quarantined.

Welcome to Tvíbura and Tvíburi, the richly imagined twin planets that stand at the center of Greg Egan's extraordinary new novella, Phoresis. These two planets...one inhabited, one not...exist in extreme proximity to one another. As the narrative begins, Tvíbura, the inhabited planet, faces a grave and imminent threat: the food supply is dwindling, and the conditions necessary for sustaining life are growing more and more erratic. Faced with the prospect of eventual catastrophe, the remarkable women of Tvíbura launch a pair of ambitious, long-term initiatives. The first involves an attempt to reanimate the planet's increasingly dormant ecosphere. The second concerns the building of a literal "bridge between worlds" that will connect Tvíbura to its (hopefully) habitable sibling. These initiatives form the core of the narrative, which is divided into three sections and takes place over many generations. The resulting triptych is at once an epic in miniature, a work of hard SF filled with humanist touches, and a compressed, meticulously detailed example of original world building. Most centrally, it is a portrait of people struggling...and sometimes risking everything...to preserve a future they will not live to see. Erudite and entertaining, Phoresis shows us Egan at his formidable best, offering the sort of intense, visionary pleasures only science fiction can provide.

A Vintage Shorts “Short Story Month” Selection Together with a crew of other miners and cart-pullers, Hillalum is recruited to climb the Tower of Babylon and unearth what lies beyond the vault of heaven. During his journey, Hillalum discovers entire civilizations of tower-dwellers on the tower—there are those who live inside the mists of clouds, those who raise their vegetables above the sun, and those who have spent their lives under the oppressive weight of an endless, white stratum at the top of the universe. “Tower of Babylon” is a rare gem—a winner of the prestigious Nebula award, the first story Ted Chiang ever published, and the brilliant opening piece to Chiang’s much-lauded first collection, Stories of Your Life and Others, which is soon to be a major motion picture starring Amy Adams. An ebook short.

The vast and mysterious universe is explored in this reprint anthology from award-winning editor and anthologist Neil Clarke (Clarkesworld magazine, The Best Science Fiction of the Year). The urge to explore and discover is a natural and universal one, and the edge of the unknown is expanded with each passing year as scientific advancements inch us closer and closer to the outer reaches of our solar system and the galaxies beyond them. Generations of writers have explored these new frontiers and the endless possibilities they present in great detail. With galaxy-spanning adventures of discovery and adventure, from generations ships to warp drives, exploring new worlds to first contacts, science fiction writers have given readers increasingly new and alien ways to look out into our broad and sprawling universe. The Final Frontier delivers stories from across this literary spectrum, a reminder that the universe is far large and brimming with possibilities than we could ever imagine, as hard as we may try.