Aliens are spying on Earth from one of the four worlds that make up the Warden Diamond. But it is impossible to send agents to any of the four worlds because of unique microscopic symbionts that make it impossible for visitors to leave the Diamond. Seeking a unique solution, each of the four worlds making up the Diamond is sent a person whose mind has been stripped of everything and who is now controlled by an agent of the Confederacy. Lilith is the first planet to be visited.

On the technological, decadent world of Proton, someone was trying to destroy Stile, serf and master Gamesman. His only escape lay in Phaze, a world totally ruled by magic. Soon he learned that his alternate self had already been murdered, and that he was next. On Proton, his fate depended on winning the great Games. On Phaze, he must master magic to survive. And if he used any magic at all, his friends were determined to kill him at once!

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.

Thomas Covenant is a leper, a bitter and solitary pariah who is mystically transported to another Earth where time moves differently than ours, one in which magic takes many forms. The Land is threatened by many evils, the most immediate of which is a maddened Cavewight whose subterranean excavations have unearthed the ancient and puissant Staff of Law. More dangerous to the free people of the Land is the Gray Slayer, Lord Foul, the Despiser, who intends to destroy the actual foundations of the Earth that he might wage war against the universe’s creator.

Amber is the one real world, of which all others including our own Earth are but Shadows. Amber burns in Corwin's blood. Exiled on Shadow Earth for centuries, the prince is about to return to Amber to make a mad and desperate rush upon the throne.

In this, the first novel of the best-selling Incarnations of Immortality series, Piers Anthony combines a deeply moving examination of the meaning of life and death with a gripping story of romance and loyalty, all set in a world of magic and technical wizardry.

What happens to the would-be peacemakers when they find themselves in the middle of something else? Something dangerous, something highly advanced...and something familiar? If humanity is wise, we will prepare for everything we can imagine. But we cannot prepare for what we cannot imagine. It might be benign, it might be malign, or it might be a sign. You just have to know where to look.

This is a spellbinding tale woven of equal parts epic and myth - with a liberal dash of hard science fiction. When a one-way time tunnel to Earth’s distant past, specifically six million B.C., was discovered by folks on the Galactic Milieu, every misfit for light-years around hurried to pass through it. Each sought his own brand of happiness. But none could have guessed what awaited them. Not even in a million years....

Skeeve is a magician’s apprentice (and a wanna-be thief) until an assassin’s bolt kills his master, Garkin. Along with Aahz, the green-scaled, purple-tongued demon and master magician summoned by Garkin, he sets out on a quest to get even. The road to vengeance is bound to prove rocky, however, because Skeeve can barely light a candle with his beginning magic, and Aahz has lost his own considerable magical abilities as a consequence of Garkin’s summoning spell.

After his little sister vanishes before his eyes, Kellen awakens in another realm inhabited by mythical creatures and people who shape the very forces of nature. These are the Beastcallers, wielders of elemental magics who ascend alongside their beast companions.

Friday, a secret courier, is thrown into an assignment under the command of her employer, a man she knows only as "Boss." She operates from and over a near-future Earth in North America, a vulgar and chaotic land comprised of dozens of independent states. In America's disunion, Friday keeps her balance nimbly with quick, expeditious solutions as she conquers one calamity and scrape after another.

Adrian Tchaikovksy's critically acclaimed stand-alone novel Children of Time is the epic story of humanity's battle for survival on a terraformed planet. Who will inherit this new Earth? The last remnants of the human race left a dying Earth, desperate to find a new home among the stars. Following in the footsteps of their ancestors, they discover the greatest treasure of the past age - a world terraformed and prepared for human life. But all is not right in this new Eden.

When Lenina and Bernard visit a savage reservation, we experience how Utopia can destroy humanity. Cloning, feel-good drugs, anti-aging programs, and total social control through politics, programming, and media: has Aldous Huxley accurately predicted our future? With a storyteller's genius, he weaves these ethical controversies in a compelling narrative that dawns in the year 632 A.F. (After Ford, the deity). When Lenina and Bernard visit a savage reservation, we experience how Utopia can destroy humanity.

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.

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.

A huge international corporation has developed a facility along the Juan de Fuca Ridge at the bottom of the Pacific Ocean to exploit geothermal power. They send a bio-engineered crew - people who have been altered to withstand the pressure and breathe the seawater - down to live and work in this weird, fertile undersea darkness.

Aliens are spying on Earth from one of the four worlds that make up the Warden Diamond. But it is impossible to send agents to any of the four worlds because of unique microscopic symbionts that make it impossible for visitors to leave the Diamond. Seeking a unique solution, each of the four worlds making up the Diamond is sent a person whose mind has been stripped of everything and who is now controlled by an agent of the Confederacy. Lilith is the first planet to be visited.

A world with no hunger, no disease, no war, no misery: Humanity has conquered all those things and has even conquered death. Now Scythes are the only ones who can end life - and they are commanded to do so in order to keep the size of the population under control. Citra and Rowan are chosen to apprentice to a scythe - a role that neither wants. These teens must master the "art" of taking life, knowing that the consequence of failure could mean losing their own.

Best-selling science fiction superstars Larry Niven and Jerry Pournelle combine their talents with those of Steven Barnes in an extraordinary adventure of humankind’s first outpost in the farthest reaches of space. Light years from Earth, colonists land on a planet they name Avalon. It seems like a paradise—until native creatures savagely attack. It will take every bit of intelligence, courage, and military-style discipline to survive.

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!

Fans of Douglas Adams' Hitchhiker's Guide to the Galaxy and Good Omens - your wait is over! The next ridiculous sci-fi fantasy series from a snarky British guy is here! And now you can experience the complete Doomsayer Journeys Trilogy in one volume!

At the turn of the 22nd century, scientists make a breakthrough in human spaceflight. Through a revolutionary method known as somaforming, astronauts can survive in hostile environments off Earth using synthetic biological supplementations. With the fragility of the body no longer a limiting factor, human beings are at last able to journey to neighboring exoplanets long known to harbor life. A team of these explorers, Ariadne O’Neill and her three crewmates, are hard at work in a planetary system 15 light-years from Sol, on a mission to ecologically survey four habitable worlds.

Within the Eastern Empire, Duke Kordas Valdemar rules a tiny, bucolic Duchy that focuses mostly on horse breeding. Anticipating the day when the Empire's exploitative and militant leaders would not be content to leave them alone, Korda's father set out to gather magicians in the hopes of one day finding a way to escape and protect the people of the Duchy from tyranny.

The Ancient Egyptian gods have defeated all the other pantheons and claimed dominion over the earth, dividing it into warring factions. Lt. David Westwynter, a British soldier, stumbles into Freegypt, the only place to have remained independent of the gods’ influence. There, he encounters the followers of a humanist leader known as the Lightbringer, who has vowed to rid mankind of the shackles of divine oppression. As the world heads towards an apocalyptic battle, there is far more to this freedom fighter than it seems.

Under the benevolent leadership of the League of Peoples, there is no war, little crime, and life is sacred...unless you're an Explorer. The ugly, the flawed, the misfit, the deformed, they are the unwanted, flung to the farthest corners of the galaxy to investigate hostile planets and strange, vicious creatures. Out there, there are a thousand different - and terrible - ways to die.

When half of mankind revolts and demands more opportunity, those at the top decide on a compromise: They will build the first colony ships and allow the rest to discover new worlds and start over. Twelve ships are built. The first is called the Orion. Many are eager to go, but only 100,000 are chosen for each vessel. Far from Earth, a new life awaits, and it promises the prosperity they've always wanted. But still, resistance stirs.

Jodi Taylor reads the long-awaited prequel in her Chronicles of St Mary’s series, as Dr Bairstow struggles to set up St Mary’s as we know it in a world still scarred by the ravages of civil war. Ever wondered how it all began? It’s two years since the final victory at the Battersea Barricades. The fighting might be finished, but for Dr Bairstow, just now setting up St Mary's, the struggle is only beginning. How will he assemble his team? From where will his funding come?

You think you’re struggling to find your place in the universe? Consider poor old Colin Douglass, a terminally ill insurance agent who awakens from centuries in cryogenic freeze to find Earth is a devastated wasteland. Now, he’s being pursued by a homicidal interstellar tourist board, and calculating insurance dividends is as outdated as making stone axes. Sci-fi-hating technophobe Colin seeks a cure for his illness in this strange new galaxy where toilets talk back, and door handles are a long-forgotten relic.

Aboard the Starship Shenzhou, Lieutenant Michael Burnham, a human woman raised and educated among Vulcans, is promoted to acting first officer. But if she wants to keep the job, she must prove to Captain Philippa Georgiou that she deserves to have it.

Jason Richards is in his 40s, recently divorced, and hates his job, but all of that changes when he's attacked by a redheaded vampire and left for dead in a truckstop bathroom. He soon wakes up in a mansion, surrounded by beautiful women and told he can never go home again. More importantly, he finds that his bones no longer ache, he feels amazing, and he looks like a 20-year-old kid again. That's because he's a Ferin, a Forever Young, gifted with immortality and special abilities unlike anything he ever thought possible.

Aliens are spying on Earth from one of the four worlds that make up the Warden Diamond. But it is impossible to send agents to any of the four worlds because of unique microscopic symbionts that make it impossible for visitors to leave the Diamond. Seeking a unique solution, each of the four worlds making up the Diamond is sent a person whose mind has been stripped of everything and who is now controlled by an agent of the Confederacy. Lilith is the first planet to be visited.

Cassie did not feel the soul rider enter her body...but suddenly she knew that Anchor was corrupt, and that, far from being a formless void from which could issue ony mutant changelings and evil wizards, Flux was the soure of Anchor's very existence.

The price of her new knowledge is exile, yet Cassie and the Rider of her soul are the only hope for the redemption of both Flux and Anchor.

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.

Young Prince Gaborn of Mystarria is traveling in disguise on a journey to ask for the hand of the lovely Princess Iome of Sylvarresta. Armed with his gifts of strength and perception, the prince and his bodyguard stop at a local tavern, where they spot a pair of assassins who have their sights set on Princess Iome's father. As they race to warn the king, they realize that more than the royal family is at risk—the very fate of the Earth is in jeopardy.

The Western Front, 1916. Private Percy Blakeney wakes up. He is lying on fresh spring grass. He can hear birdsong and the wind in the leaves. Where have the mud, blood, and blasted landscape of no-man's-land gone? For that matter, where has Percy gone? Madison, Wisconsin, 2015. Police officer Monica Jansson is exploring the burned-out home of a reclusive - some say mad, others allege dangerous - scientist who seems to have vanished. Sifting through the wreckage, Jansson find a curious gadget.

Fred Cassidy leads an idyllic life. As long as he remains a full time college student without a degree, he is provided a very generous stipend from his uncle's estate. But after thirteen years of happy undergrad existence everything is about to change. Cassidy's home is broken into and ransacked. When he enters he is assaulted by a former professor wanting to know where the alien artifact known as the star stone is. Cassidy manages to escape, only to discover that he is also being pursued by hired criminals, Anglophile zealots, government agents, and aliens.

They mustn't harm a human being, they must obey human orders, and they must protect their own existence...but only so long as that doesn't violate rules one and two. With these Three Laws of Robotics, humanity embarked on a bold new era of evolution that would open up enormous possibilities, and unforeseen risks.

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.

Six million years ago, at the very dawn of the starfaring era, Abigail Gentian fractured herself into a thousand male and female clones: the shatterlings. Sent out into the galaxy, these shatterlings have stood aloof as they document the rise and fall of countless human empires. They meet every 200,000 years to exchange news and memories of their travels with their siblings.

Capturing all the complexity and grand themes of the original, this prequel to the Dune series weaves a new tapestry of betrayal, passion, and destiny into a saga that expands the tale written by Frank Herbert more than 30 years ago.