Rails must be freshly laid ahead of the city & carefully removed in its wake. Rivers & mountains present nearly insurmountable challenges to the ingenuity of the city's engineers. But if the city does not move, it will fall farther & farther behind the optimum & into the crushing gravitational field that has transformed life on Earth. The only alternative to progress is death. The secret directorate that governs the city makes sure that its inhabitants know nothing of this. Raised in common in creches, nurtured on synthetic food, prevented above all from venturing outside the closed circuit of the city, they're carefully sheltered from the dire necessities that have come to define human existence. Yet the city is in crisis. People are growing restive. The population is dwindling. The rulers know that, for all their efforts, slowly but surely the city is slipping ever farther behind the optimum. Helward Mann is a member of the city's elite. Better than anyone, he knows how tenuous is the city's continued existence. But the world he's about to discover is infinitely stranger than the strange world he believes he knows so well.

    But mankind is too busy hating, stealing, scheming, and killing to care. As luminous green trails of cosmic dust and vapor stream across the heavens, blood flows beneath: nations wage all-out war, bitter strikes erupt, and jealous lovers plot revenge and murder. The earth slips past the comet by the narrowest of margins, but all succumb to the gases in its tail. When mankind wakes up, everyone is completely and profoundly different. An ill-fated romance between Willie Leadford and Nettie Stuart unfolds in a world buried in misery and bent on its own destruction. After the earth passes through the comet's tail, suffering, pettiness, and injustice melt away. Willie, Nettie, and everyone around them are reborn. They now see themselves and their world in a dramatically new and wonderful way.

    At the end of the 21st century, many people believe the only real hope for humanity lies in the Worlds: 41 orbiting satellites housing half a million people. Though the creation of cheap fusion has undermined the Worlds as a source of solar energy, they still welcome many tourists and offer plenty of raw materials for export. For example, New New York is almost pure steel. And, from that city comes Marianne O'Hara, a brilliant political-science student who has elected to spend a postgraduate year on Earth--where she unwittingly finds herself caught up in a group of fanatics looking to start another revolution in America. Even if it means the destruction of the planet.

    G. Ballard's fourth novel, which established his reputation as a writer of extraordinary talent and imaginative powers, tells the story of a physician specializing in the treatment of leprosy who is invited to a small outpost in the interior of Africa. Finding the roadways blocked, he takes to the river, and embarks on a frightening journey through a strange petrified forest whose area expands daily, affecting not only the physical environment but also its inhabitants.Through a 'leaking' of time, the West African jungle starts to crystallize. Trees are metamorphosed into enormous jewels. Crocodiles encased in second glittering skins lurch down the river. Pythons with huge blind gemstone eyes rear in heraldic poses.Fearing this transformation as a herald of the apocalypse, most flee the area in terror, afraid to face a catastrophe they cannot understand. But some, dazzled and strangely entranced, remain to drift through this dreamworld forest. Travelling through this gilded land, the doctor tries to resist its strange allure, while a tribe of lepers search for Paradise…

    What he hadn't expected was that when the apocalypse came, a thermonuclear blast would tear apart the fabric of time and hurl his shelter into a world with no sign of other human beings.

    He wants to be painted crossing the finish line, in his racing silks, with a medal around his neck. But Charley isn't a runner. He is a human mount, the property of one of the alien invaders called Hoots. Charley hasn't seen his mother in years, and his father is hiding out in the mountains with the other Free Humans. The Hoots own the world, but the humans want it back. Charley knows how to be a good mount-now he's going to have to learn how to be a human being. This remarkable novel, winner of the 2002 Philip K. Dick Award, should be read by every fan of speculative fiction, teenagers and adults alike.

    Cover Artist: Alan AldridgeWhen John Bravais was sent on a secret mission to observe a war in North Africa he found out more than it was safe for him to know - even after he had secretly been surgically transformed so that he was as strong as a Bolo tank, and nearly as tough: Wolf-like aliens, invisible to the ordinary eye, were harvesting the brains of the fallen fighters! Brevais might have become the Ultimate Warrior, but still he was only one man against A Plague of Demons.

    Reprint.

    He was the first man to see a Martian...but he wasn't the last!It was estimated that a billion of them had arrived, one to every three human beings on Earth—obnoxious green creatures who could be seen and heard, but not harmed and who probed private sex lives as shamelessly as they probed government secrets.No one knew why they had come. No one knew how to make them go away—except, perhaps, Luke Devereaux. Unfortunately Devereaux was going slightly bananas, so it wouldn't be easy.But for a science-fiction writer nothing was impossible...

    The catastrophe is confined to Bellona, and most of the inhabitants have fled. But others are drawn to the devastated city, among them the Kid, a white/American Indian man who can't remember his own name. The Kid is emblematic of those who live in the new Bellona, who are the young, the poor, the mad, the violent, the outcast--the marginalized.

    The story was called "Nightfall", and many years later it has long been recognized as a classic, its author a legend. Now, the Gran Master of Science Fiction teams with Robert Silverberg, one of the field's top award-winning authors, to explore and expand an apocalyptic tale that is more spellbinding today than ever before -- Nightfall: The Novel.Imagine living on a planet with six suns that never experiences Darkness. Imagine never having seen the Stars. Then, one by one the suns start to set, gradually leading into Darkness for the first time ever. Kalgash is a world on the edge of chaos, torn between the madness of religious fanaticism and the unyielding rationalism of scientists. Lurking beneath it all is a collective, instinctual fear of the Darkness. For Kalgash knows only the perpetual light of day; to its inhabitants, a gathering twilight portends unspeakable horror. And only a handful of people on the planet are prepared to face the truth, their six suns are setting all at once for the first time in over two thousand years, signaling the end of civilization as it explodes in the awesome splendor of Nightfall.Encompassing the psychology of disaster, the tenacity of the human spirit, and, ultimately, the regenerative power of hope, Nightfall is a tale rich in character and suspense that only the unique collaboration of Isaac Asimov and Robert Silverberg could create.

    Tornadoes of almost unimaginable force roam the open spaces of Texas. And on their trail are the Storm Troupers: a ragtag band of computer experts and atmospheric scientists who live to hack heavy weather -- to document it and spread the information as far as the digital networks will stretch, using virtual reality to explore the eye of the storm.Although it's incredibly addictive, this is no game. The Troupers' computer models suggest that soon an "F-6" will strike -- a tornado of an intensity that exceeds any existing scale; a storm so devastating that it may never stop. And they're going to be there when all hell breaks loose.

    Though most of Earth has already been evacuated, it’s Samantha’s job to catalog plant samples for the survivors’ unknowable journey beyond.Preparing to stay behind and watch the world end, she makes a final human connection.As certain doom hurtles nearer, the unexpected and beautiful potential for the future begins to flower.Veronica Roth’s Ark is part of Forward, a collection of six stories of the near and far future from out-of-this-world authors. Each piece can be read or listened to in a single thought-provoking sitting.

    Yes, it will be dangerous, frequently brutal, and often devastating. But it’s also savagely funny, deliriously strange, and absolutely brimming with adventure.In these edgy, unexpected tales, a body-hopping mercenary avenges his pet elephant, and an orphan falls in love with a sentient starship. Fighters ally to power a reality-bending engine, and a swamp-dwelling introvert tries to save the world—from her plague-casting former wife.So come meet Kameron Hurley in the future. The version she's created here is weirder—and far more hopeful—than you could ever imagine.

    I thought it meant stillness, a body gone limp. A marionette with its strings cut. Death was like a long vacation--a going away. Storms and flooding are worsening around the world, and a mysterious immune disorder has begun to afflict the young. Sophie Perella is about to begin her senior year of high school in Toronto when her little sister, Kira, is diagnosed. Their parents' marriage falters under the strain, and Sophie's mother takes the girls to Oxford, England, to live with their Aunt Irene. An Oxford University professor and historical epidemiologist obsessed with relics of the Black Death, Irene works with a centre that specializes in treating people with the illness. She is a friend to Sophie, and offers a window into a strange and ancient history of human plague and recovery. Sophie just wants to understand what's happening now; but as mortality rates climb, and reports emerge of bodily tremors in the deceased, it becomes clear there is nothing normal about this condition--and that the dead aren't staying dead. When Kira succumbs, Sophie faces an unimaginable choice: let go of the sister she knows, or take action to embrace something terrifying and new. Tender and chilling, unsettling and hopeful, The Migration is a story of a young woman's dawning awareness of mortality and the power of the human heart to thrive in cataclysmic circumstances.