In a perilous future where disposable duplicate bodies fulfill every legal and illicit whim of their decadent masters, life is cheap. No one knows that better than Albert Morris, a brash investigator with a knack for trouble, who has sent his own duplicates into deadly peril more times than he cares to remember. But when Morris takes on a ring of bootleggers making illegal copies of a famous actress, he stumbles upon a secret so explosive it has incited open warfare on the streets of Dittotown.

What may we become? How will we endure? The future is a daunting realm, filled with real and imagined perils. So enter it prepared! Here are vivid tales about possible tomorrows, from the keen eye and colorful pen of David Brin, a modern master of speculative fiction.

Physicist Dennis Nuel was the first human to probe the strange realms called anomaly worlds - alternate universes where the laws of science were unpredictably changed. But the world Dennis discovered seemed almost like our own - with one perplexing difference. To his astonishment, he was hailed as a wizard and found himself fighting beside a beautiful woman with strange powers against a mysterious warlord as he struggles to solve the riddle of this baffling world.

The long-awaited new novel by the award-winning, best-selling author of Startide Rising and The Uplift War- an epic novel set 50 years from tomorrow, a carefully-reasoned, scientifically faithful tale of the fate of our world.

Young Maia is fast approaching a turning point in her life. As a half-caste var, she must leave the clan home of her privileged half-sisters and seek her fortune in the world. With her twin sister, Leie, she searches the docks of Port Sanger for an apprenticeship aboard the vessels that sail the trade routes of the Stratoin oceans. On her far-reaching, perilous journey of discovery, Maia will endure hardship and hunger, imprisonment and loneliness, bloody battles with pirates and separation from her twin.

Leo Graf was just your average highly efficient engineer: mind your own business, fix what's wrong, and move on to the next job. But all that changed on his assignment to the Cay Habitat, where a group of humanoids had been secretly, commercially bioengineered for working in free fall. Could he just stand there and allow the exploitation of hundreds of helpless children merely to enhance the bottom line of a heartless mega-corporation?

For Oxford student Kivrin, traveling back to the 14th century is more than the culmination of her studies - it's the chance for a wonderful adventure. For Dunworthy, her mentor, it is cause for intense worry about the thousands of things that could go wrong.

Nine hundred thousand years ago, something annihilated the Amarantin civilization just as it was on the verge of discovering space flight. Now one scientist, Dan Sylveste, will stop at nothing to solve the Amarantin riddle before ancient history repeats itself. With no other resources at his disposal, Sylveste forges a dangerous alliance with the cyborg crew of the starship Nostalgia for Infinity. But as he closes in on the secret, a killer closes in on him because the Amarantin were destroyed for a reason.

Perhaps it wasn't from our time, perhaps it wasn't even from our universe, but the arrival of the 300-kilometer long stone was the answer to humanity's desperate plea to end the threat of nuclear war. Inside the deep recesses of the stone lies Thistledown: the remnants of a human society, versed in English, Russian and Chinese. The artifacts of this familiar people foretell a great Death caused by the ravages of war, but the government and scientists are unable to decide how to use this knowledge.

Welcome to Ringworld, an intermediate step between Dyson Spheres and planets. The gravitational force created by a rotation on its axis of 770 miles per second means no need for a roof. Walls 1,000 miles high at each rim will let in the sun and prevent much air from escaping. Larry Niven's novel, Ringworld, is the winner of the 1970 Hugo Award for Best Novel, the 1970 Nebula Award for Best Novel, and the 1972 Ditmars, an Australian award for Best International Science Fiction.

On September 28th, a geologist working in Death Valley finds a mysterious new cinder cone in very well-mapped area. On October 1, the government of Australia announces the discovery of an enormous granite mountain. Like the cinder cone, it wasn't there six months ago.

Something is happening to planet Earth, and the truth is too terrifying to contemplate

For millennia, the Shaa have subjugated the universe, forcing the myriad sentient races to bow to their joyless tyranny. But the Shaa will soon be no more. The Dread Empire is in its rapidly fading twilight, and with its impending fall comes the promise of a new galactic order...and bloody chaos. A young Terran naval officer marked by his lowly birth, Lt. Gareth Martinez is the first to recognize the insidious plot of the Naxid - the powerful, warlike insectoid society that was enslaved before all others - to replace the masters’ despotic rule with their own.

The Mote In God's Eye is their acknowledged masterpiece, an epic novel of mankind's first encounter with alien life that transcends the genre. No lesser an authority than Robert A. Heinlein called it "possibly the finest science fiction novel I have ever read".

The war raged across the galaxy. Billions had died, billions more were doomed. Moons, planets, the very stars themselves, faced destruction, cold-blooded, brutal, and worse, random. The Idirans fought for their Faith; the Culture for its moral right to exist. Principles were at stake. There could be no surrender. Within the cosmic conflict, an individual crusade. Deep within a fabled labyrinth on a barren world, a Planet of the Dead proscribed to mortals, lay a fugitive Mind. Both the Culture and the Idirans sought it....

Idris has neither aged nor slept since they remade him in the war. And one of humanity's heroes now scrapes by on a freelance salvage vessel, to avoid the attention of greater powers. After Earth was destroyed, mankind created a fighting elite to save their species, enhanced humans such as Idris. In the silence of space they could communicate, mind-to-mind, with the enemy. Then their alien aggressors, the Architects, simply disappeared - and Idris and his kind became obsolete. Now, 50 years later, Idris and his crew have discovered something strange abandoned in space.

Liam Saunders-Chang is one of the last humans left on Mars. The son of two scientists who have been racing against time to create technology vital to humanity's survival, Liam, along with his friend Phoebe, will be on the last starliner to depart before Mars, like Earth before it, is destroyed. Or so he thinks. Because before this day is over, Liam and Phoebe will make a series of profound discoveries about the nature of time and space and find out that the human race is just one of many in our universe locked in a dangerous struggle for survival.

The year is 2162. Thirty-eight years after first contact, Lord Commander Grayson St. Clair leads the Tellus Ad Astra on an unprecedented expedition to the Galactic Core, carrying more than a million scientists, diplomats, soldiers, and AIs. Despite his reservations about their alien hosts, St. Clair is deeply committed to his people - especially after they're sucked into a black hole and spat out four billion years in the future. Civilizations have risen and fallen. The Andromeda Galaxy is drifting into the Milky Way. And Earth is most certainly a distant memory.

On the run and out of chances, he guides his ship and crew into the heart of a relic older than the galaxy itself - and find himself on the edge of an eternal war he never knew existed. The relic is a mech, lost to history and forgotten by all who remain. Built by an ancient race to be the ultimate weapon, the machine is capable of unspeakable destruction, and its discovery could unhinge the balance of power throughout known space.

There is a milestone in the evolution of every sentient race, a Tech Singularity Event, when the species achieves transcendence through its technological advances. Now the creatures known as humans are near this momentous turning point. But an armed threat is approaching from deepest space, determined to prevent humankind from crossing over that boundary - by total annihilation if necessary.

Fleet of Worlds takes a closer look at Human-Puppeteer (Citizen) relations and the events leading up to Niven's first Ringworld novel. Kirsten Quinn-Kovacks is among the best and brightest of her people. She gratefully serves the gentle race that rescued her ancestors from a dying starship, gave them a world, and nurtures them still. If only the Citizens knew where Kirsten's people came from.

The Peacemaker-enforced ceasefire brought an end to the hostilities, but not a resolution, and now it’s up to the Four Horsemen to forge a lasting peace. Alexis Cromwell, despite her pregnancy, heads off to Capital with Nigel Shirazi to obtain justice from the enigmatic Mercenary Guild Council, but when they arrive, they’re quickly embroiled in galactic politics, and find out the situation is far, far worse than they could possibly have imagined.

The Overlords appeared suddenly over every city - intellectually, technologically, and militarily superior to humankind. Benevolent, they made few demands: unify earth, eliminate poverty, and end war. With little rebellion, humankind agreed, and a golden age began.

The Galactic Star Alliance has been alive and well for millions of Earth years. Hundreds of thousands of worlds and trillions of beings move across the many home worlds of the Alliance. This revelation invites many questions: How is faster-than-light speed travel possible, and could cohesive, interstellar civilizations exist without it? Is it conceivable to govern a coalition not of different countries but of different species?

It is the second stage of human colonization - the first age, humanity's initial attempt to people the stars, ended in disaster when it was discovered that Earth's original superluminal drive did permanent genetic damage to all who used it - mutating Earth's far-flung colonists in mind and body. Now, one of Earth's first colonies has given humanity back the stars, but at a high price - a monopoly over all human commerce.

When Jack Harrison climbed down the short ladder from the airlock and stepped onto the debris covered soil, the ground crackled with the sound of dried leaves and twigs.

Jain was the lieutenant commander of an elite SEAL team. He was accustomed to order and discipline, which he used to give the men under his command that particular brand of killer instinct his unit was known for.But one day that semi-comfortable, ordered life ended when he opened his eyes to find his body replaced by a starship. His mind had become its AI core. He is somewhere in deep space. Most of his systems are badly damaged. He has no memory of how he got here, or what his mission is. Evidence points to an attack by an unknown entity.

This bundle edition collects the first three audiobooks in the Superdreadnought series, an action-packed, high-stakes military sci-fi space-opera epic.

"Triplanetary" is a science fiction novel and space opera by author E. E. Smith, published in 1948. It consists of two parts. The first explains the series background, which consists of a conflict between the evil Eddorians and the benevolent Arisians. This conflict is carried out throughout the history of an oblivious humankind on Earth. The final part of the book, which was originally published as a magazine story, takes up the tale after civilization has been rebuilt.

Moth was a beautiful planet, the only one with wings - two great golden clouds suspended in space around it. Here was a wide-open world for any venture a man might scheme. The planet attracted unwary travelers, hardened space-sailors, and merchant buccaneers - a teeming, constantly shifting horde that provided a comfortable income for certain quick-witted fellows like Flinx and his pet flying snake Pip.

Sucked through a wormhole, Charlie's spaceship crash landed on a distant world, yet somehow he survived. But survival was about to get a lot harder as he found himself not just stranded on a new planet, but in another galaxy entirely. One ruled not by the laws of technology, but by magic. A realm of space pirates, deadly assassins, alien gladiators, and even dragons. For the spaceman from Earth, it was enough to make his head spin.

Persecuted refugees from six separate alien races have migrated to the idyllic planet Jijo. And despite their incredible diversity, the inhabitants live together in blissful harmony. However, settlement on Jijo is illegal - and it's only a matter of time before the residents of this forbidden paradise are discovered by the galactic powers-that-be.

For nearly a billion years, every known sentient species in the universe has been the result of genetic and cultural guidance - or "uplifting" - by a previously uplifted patron race. Then humans are discovered. Having already uplifted chimps and dolphins, humanity clearly qualifies as an intelligent species, but did they actually evolve their own intelligence, or did some mysterious patron race begin the process, then suddenly abandon Earth?

In a cave high in the Alps, a renegade anthropologist discovers a frozen Neanderthal couple with a Homo sapiens baby. Meanwhile, in southern Russia, the U.N. investigation of a mysterious mass grave is cut short. One of the investigators, molecular biologist Kaye Lang, returns home to the U.S. to learn that her theory on human retroviruses has been verified with the discovery of SHEVA, a virus that has slept in our DNA for millions of years and is now waking up.

William Mandella is a soldier in Earth's elite brigade. As the war against the Taurans sends him from galaxy to galaxy, he learns to use protective body shells and sophisticated weapons. He adapts to the cultures and terrains of distant outposts. But with each month in space, years are passing on Earth. Where will he call home when (and if) the Forever War ends?

He was a survivor - a wanderer who traded tales for food and shelter in the dark and savage aftermath of a devastating war. Fate touches him one chill winter’s day when he borrows the jacket of a long-dead postal worker to protect himself from the cold. The old, worn uniform still has power as a symbol of hope, and with it he begins to weave his greatest tale, of a nation on the road to recovery. This is the story of a lie that became the most powerful kind of truth.