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Tha Change had come.

The world was suddenly, incredibly different. Somwhow, the Earth has escaped from a force field that had until then showed down light and otherwise affected electromagnetic and electrochemical processes. Almost overnight the intelligence of every living creature - man and beast - trebled. And the world went mad.

Archie Brock, the near moron, found himself in sold charge of a farm of strangely uncooperative animals and had to enlist the aid of superintelligent chimpanzees who had escaped from a nearby circus.

Peter Corinth, a physicist who started out life bright, was suddenly translated to an order of intelligence that left his rather dumb wife far behind... and shw was no longer too dumb to notice.

But the biggest problem of all was the ultimate one. In a world withoute problems where all the questions that have plagues mankind throughout history are solved, what is man to do with his time?

Stretching from the distant past into the remote future, from primordial Earth to the stars, Evolution is a soaring symphony of struggle, extinction, and survival; a dazzling epic that combines a dozen scientific disciplines and a cast of unforgettable characters to convey the grand drama of evolution in all its awesome majesty and rigorous beauty.

Sixty-five million years ago, when dinosaurs ruled the Earth, there lived a small mammal, a proto-primate of the species Purgatorius. From this humble beginning, Baxter traces the human lineage forward through time. The adventure that unfolds is a gripping odyssey governed by chance and competition, a perilous journey to an uncertain destination along a route beset by sudden and catastrophic upheavals. It is a route that ends, for most species, in stagnation or extinction. Why should humanity escape this fate?

Physicist Dennis Nuel's career has taken a sudden and startling turn. After being denied access to the Zievatron Project through the political machinations of his chief rival, the self-righteous, priggish Bernard Brady, Dennis is need back - badly. The zievatron, a device created to provide access to parallel worlds, has indeed made contact. But now the return mechanism is malfunctioning, and the only way to repair it is for someone to go through to this alien world where no human has yet ventured. That someone is to be Dennis Nuel.

When the silent spacecraft arrived and took the light from the world, no one knew what to expect. But, although the Overlords kept themselves hidden from man, they had come to unite a warring world and to offer an end to poverty and crime.

When they finally showed themselves it was a shock, but one that humankind could now cope with, and an era of peace, prosperity and endless leisure began.

But the children of this utopia dream strange dreams of distant suns and alien planets, and begin to evolve into something incomprehensible to their parents, and soon they will be ready to join the Overmind...and, in a grand and thrilling metaphysical climax, leave the Earth behind.

In the space of a few years, Joe Haldeman has come to be recognized as one of the best writers of science fiction of our time. Mindbridge, a novel at once traditional in ist plot and a daring new departure in its structure, is certain to add to this reputation.

Jacque LeFavre live in the formidable world of the future. A pioneer in interstellar colonization, he is the co-discoverer of a creature that acts as a psychic link... allowing one person to sense directly the thoughts and emotions of another. But he learns the terrible price fo this power when his partner suddenly dies.

Older, disillusioned, he is one of a team that confronts the L'vrai, a race of angelic beauty but with a callous disregard for life. They are expanding through the universe and view humankind as a removable obstacle. LeFavre's assignment: establsih a telepathic link with a L'vrai leader and find an alternative to the interstellar war that threatens the extinction of one of the two races.

Tiptree- and Sturgeon-nominated Novelette

Imagine a race of marsupial-like aliens who have not two, but three sexes: father, birth-mother, and nurture-mother. The difficulties of married life are further complicated by adding another partner, but this culture has worked out its own unique solution. The arrival of a new race of space-faring aliens, however, will change everything.

This story was first published in Asimov's Science Fiction in June 1998, later collected in Isaac Asimov's Mother's Day (2000), Strange But Not a Stranger (2002), Infinity Plus: The Anthology (2007) and Masters of Science Fiction: James Patrick Kelly (2016).

Listen to the author read the story at his blog: Part 1 Part 2 Part 3

With more than five million copies sold, Flowers for Algernon is the beloved, classic story of a mentally disabled man whose experimental quest for intelligence mirrors that of Algernon, an extraordinary lab mouse. In poignant diary entries, Charlie tells how a brain operation increases his IQ and changes his life. As the experimental procedure takes effect, Charlie's intelligence expands until it surpasses that of the doctors who engineered his metamorphosis. The experiment seems to be a scientific breakthrough of paramount importance--until Algernon begins his sudden, unexpected deterioration. Will the same happen to Charlie?

A futuristic murder mystery about detective partners--a human and an enhanced chimpanzee--who are investigating why a woman murdered an apparently random stranger on the subway.

This story is included in the anthologies The Best Science Fiction & Fantasy of the Year: Volume Thirteen (2019), edited by Jonathan Strahan, and The Best Science Fiction of the Year: Volume Four (2019), edited by Neil Clarke.

The full story can be read for free at Tor.com.

First contact was never supposed to be like this. A sudden rift appears in near-earth space, causing electronic components to permanently fail and cause total chaos. As Earth's fragile technological society disintegrates, no one can answer the obvious question - what is the rift, and who or what has created it.

A new generation comes to age attempting to answer these questions, and Taria Spears, an anthropologist, is selected as part of the crew on the exploratory ship Lightbringer. Lightbringer's mission is to investigate the worm-hole like Rift and, if possible, to pass through it to find out what lies on the other side, and to seek some answers.

But what if all they find is an alien culture where sound, not sight is the primary sense?

Table of Contents:

• George R. R. Martin, Dark Harbinger - (1983) - essay by Algis Budrys
• The Monkey Treatment - (1983) - novelette
• "...For a Single Yesterday" - (1975) - novelette
• In the House of the Worm - (1976) - novella
• The Needle Men - (1981) - shortstory
• Meathouse Man - (1976) - novelette
• Sandkings - (1979) - novelette
• This Tower of Ashes - (1976) - shortstory
• Nightflyers - (1980) - novella
• Remembering Melody - (1981) - shortstory

This story is told from the viewpoint of an enhanced-intelligence trained K9 Search-and-Rescue dog which has been enabled with the ability to communicate with her trainer more fully than normal dogs. The trainer is uncomfortable with her new, highly-sentient partner, and the dog describes her efforts to win over the affections of her trainer, while also relating the details of their search missions.

This novella was a Finalist for the Asimov’s Readers’ Awards and was first published in Asimov's Science Fiction in July/August 2019.

Read this story for free at Asimov's.

A man is about to kill a cow. He discusses life and death and his right to kill with the compliant animal. He begins to suspect he may be about to commit murder. But kills anyway...

It began when the animal rights movement injected domestic animals with artificial intelligences in bid to have the status of animals realigned by the international court of human rights. But what is an animal that can talk? Where does its intelligence end at its machine intelligence begin? And where might its soul reside?

As we place more and more pressure on the natural world and become more and more divorced, Adam Roberts' new novel posits a world where nature can talk back, and can question us and our beliefs.

Adam Roberts is an award-winning author at the peak of his powers and each new novel charts an exciting new direction while maintaining a uniformly high level of literary achievement.

Inheriting your uncle's supervillain business is more complicated than you might think. Particularly when you discover who's running the place.

Charlie's life is going nowhere fast. A divorced substitute teacher living with his cat in a house his siblings want to sell, all he wants is to open a pub downtown, if only the bank will approve his loan.

Then his long-lost uncle Jake dies and leaves his supervillain business (complete with island volcano lair) to Charlie.

But becoming a supervillain isn't all giant laser death rays and lava pits. Jake had enemies, and now they're coming after Charlie. His uncle might have been a stand-up, old-fashioned kind of villain, but these are the real thing: rich, soulless predators backed by multinational corporations and venture capital.

It's up to Charlie to win the war his uncle started against a league of supervillains. But with unionized dolphins, hyper-intelligent talking spy cats, and a terrifying henchperson at his side, going bad is starting to look pretty good.

In a dog-eat-dog world... be a cat.

Dr. Moreau, a scientist expelled from his homeland for cruel experiments, finds a deserted island where he can create hideous creatures with manlike intelligence. But as the rigid order on Moreau's island dissolves, the consequences of his experiments emerge-and his creations revert to beasts more shocking than nature could devise.

Just a few hundred genes separate humans from chimpanzees. Imagine someone altering the chimp genome, splicing in human genes to increase the size of the cranium, reduce the amount of body hair, enable speech. What sort of creature would result?

Sims takes place in the very near future, when the science of genetics is fulfilling its vaunted potential. It's a world where genetically transmitted diseases are being eliminated. A world where dangerous or boring manual labor is gradually being transferred to "sims," genetically altered chimps who occupy a gray zone between simian and human. The chief innovator in this world is SimGen, which owns the patent on the sim genome and has begun leasing the creatures worldwide.

But SimGen is not quite what it seems. It has secrets... secrets beyond patents and proprietary processes... secrets it will go to any lengths to protect. Sims explores this brave new world as it is turned upside down and torn apart when lawyer Patrick Sullivan decides to try to unionize the sims.

Never make a date with a martian - the end result might surprise you.

The strangest of all worlds. Worlds where gigantic centipedes and grotesque parasites abound. Worlds where Martians transmit their messages by touch. Worlds where the first spacewoman breaks down the barriers and produces the first truly inter=planetary child.

An historian who speaks with the dead is ensnared by the past. A child who feels no pain and who should not exist sees the future. Between them are truths that will shake worlds.

In a distant future, no remnants of human beings remain, but their successors thrive throughout the galaxy. These are the offspring of humanity's genius-animals uplifted into walking, talking, sentient beings. The Fant are one such species: anthropomorphic elephants ostracized by other races, and long ago exiled to the rainy ghetto world of Barsk. There, they develop medicines upon which all species now depend. The most coveted of these drugs is koph, which allows a small number of users to interact with the recently deceased and learn their secrets.

To break the Fant's control of koph, an offworld shadow group attempts to force the Fant to surrender their knowledge. Jorl, a Fant Speaker with the dead, is compelled to question his deceased best friend, who years ago mysteriously committed suicide. In so doing, Jorl unearths a secret the powers that be would prefer to keep buried forever. Meanwhile, his dead friend's son, a physically challenged young Fant named Pizlo, is driven by disturbing visions to take his first unsteady steps toward an uncertain future.

The modern classic of space opera that began with Children of Time continues in this extraordinary novel of humanity's battle for survival on a terraformed planet.

Earth failed. In a desperate bid to escape, the spaceship Enkidu and its captain, Heorest Holt, carried its precious human cargo to a potential new paradise. Generations later, this fragile colony has managed to survive, eking out a hardy existence. Yet life is tough, and much technological knowledge has been lost.

Then strangers appear. They possess unparalleled knowledge and thrilling technology -- and they've arrived from another world to help humanity's colonies. But not all is as it seems, and the price of the strangers' help may be the colony itself.

Rex is a Good Dog. He loves humans. He hates enemies. He's utterly obedient to Master.

He's also seven foot tall at the shoulder, bulletproof, bristling with heavy calibre weaponry and his voice resonates with subsonics especially designed to instil fear. With Dragon, Honey and Bees, he's part of a Multi-form Assault Pack operating in the lawless anarchy of Campeche, Southeastern Mexico.

Rex is a genetically engineered bioform, a deadly weapon in a dirty war. He has the intelligence to carry out his orders and feedback implants to reward him when he does. All he wants to be is a Good Dog. And to do that he must do exactly what Master says and Master says he's got to kill a lot of enemies. But who, exactly, are the enemies? What happens when Master is tried as a war criminal? What rights does the Geneva Convention grant weapons? Do Rex and his fellow bioforms even have a right to exist? And what happens when Rex slips his leash?

Ian Watson's brilliant debut novel was one of the most significant publications in British SF in the 1970s. Intellectually bracing and grippingly written, it is the story of three experiments in linguistics, and is driven by a searching analysis of the nature of communication. Fiercely intelligent, energetic and challenging, it immediately established Watson as a writer of rare power and vision, and is now recognized as a modern classic.

The Return of Barlennan

Dhrawn was a giant rock ball, more than 3,000 time the mass of Earth. Perhaps a planet, perhaps a nearly dead star, these 17 billion square miles of mystery cried out for investigation. But its corrosive atmosphere and crushing gravity assured that no human would ever set foot on its surface.

Those hardy, caterpillar-like Mesklinites, on the other hand, were ideally suited to explore Dhrawn, and their leader certainly knew a good deal when he saw one. So Barnennan, a shrewd sea captain if ever there was one, struck a sharp bargain with the Earth men for his services in leading the expedition.

But the humans might not have been so pleased with their side of the bargain, if they had known Barlennan had plans of his own for Dhrawn...

Anton is an undercover operative from future Earth, who travels to an alien world whose culture has not progressed beyond the Middle Ages. Although in possession of far more advanced knowledge than the society around him, he is forbidden to interfere with the natural progress of history. His place is to observe rather than interfere - but can he remain aloof in the face of so much cruelty and injustice...?

The Photurians -- a hivemind of sentient AIs and machines -- were awakened by humanity as part of a complex political trap. But they broke free, evolved, and now the human race is almost finished. Once we spanned dozens of star systems; now only four remain, and Earth is being evacuated.

But the Photes can infect us, and among the thousands rescued from our home world may be enemy agents. Tiny colonies struggle to house the displaced. Our warships are failing. The end of humanity has come.

But on a distant planet shielded from both humanity and the Photurians, one hope may still live. The only person who might be able to intervene. The roboteer. He is trapped in a hell of his own making, and does not know he is needed. And so a desperate rescue mission is begun. But can he be reached in time? Or will he be the last remnant of humanity in the universe?

Antor Trellig, head of a ruthless interstellar syndicate, had seized a super computer with godlike powers, which could make him omnipotent. The Council offered master criminal Mavra Chang any reward if she stopped Trellig - and horrible, lingering death if she failed. But neither Trellig nor Mavra had taken the Well World into consideration. Built by the ancient Markovians, the Well World controlled the design of the cosmos. When the opponents were drawn across space to the mysterious planet, they found themselves in new alien bodies, and in the middle of a battle where strange races fought desperately, with the control of all the Universe as the prize.

This novel consists of four novellas: "Son of the Morning", "The King's Dogs", "Nebuchadnezzar", and "A Judgment of Dragons".

The main characters are Khreng and Prandra, members of a race called the Ungrukh, who are leopard-like creatures with reddish fur, paws better adapted for manipulating objects (though no opposable thumbs), sentience, and a high incidence of ESP ability. The latter makes them valuable to the Galactic Federation. Khreng & Prandra, a mated pair, are among the first Ungrunkh to work for GalFed.

In the first story, they run afoul of a time vortex set up by an alien Qumedni in a 19th-century Polish village, and have to defeat it. In the second, while Prandra is getting her ESP-ability tested at GalFed HQ, they are framed for murder. In the third, they attempt to break drug-runners' hold on a planet whose inhabitants are not capable of successfully opposing them. In the fourth, they confront the Qumedni responsible for creating their race (from Earth leopards), and the Qumedni intent on stealing the secret of how sentience is bestowed.

Despite the title, there are no dragons in this book.

The young and beloved Emperor Spinel-alpha of the planet Qsaprinel has been taken captive by the allies of his jealous twin brother, whose deformities of birth have left him jealous and scheming for the throne. The Emperor and all his subjects are large crustaceans of a philosophical bent, and there is more to the situation than meets the Emperor's compound eye. A conspiracy revolving around an enigmatic enzyme found in the bodies of the Qsaprinli and the rumors of an illegal human colony hidden somewhere on the world's single continent has entangled the planet; on the Emperor's request, it falls to Dun Kinnear, Sector Co-ordinator and class-two ESP and Khreng and Prandra's daughter Emerald and her lover Raanung, to untangle the mystery and defend Qsaprinel from its attackers.

This is not a direct sequel to A Judgement of Dragons, as it can be read without any prior knowledge of Gotlieb's world, but fans of the earlier novel will enjoy the reappearance of familiar characters and races.

In the last of the GalFed-commissioned chronicles of the Ungrukh, Emerald and Raanung's daughter Bren faces murder and terrorism in the most unlikely of places: Sol Three's Grand Canyon. A group of Ungrukh had agreed to come to Earth, where their mental abilities and physical structure could be studied by resident scientists, but while they were prepared for hostility, they did not expect a massacre.

There were only four survivors: Bren; her twin siblings Tugrik and Orenda; and a shy loner named Etrem whose panther-black pelt had made him an outcast among his tribe. While Emerald and Raanung continue to realize Khreng's dream of a unified Ungruwarkh, no longer split up into warring tribes and hereditary feuds, Bren and Etrem struggle to avenge the murder of their kin. With the help of a GalFed telepath and a Pueblo shaman, they are successful in finding the killer -- but things become suddenly uncertain when Qumedni, the mischievous energy being who created the Ungrukh from Terran leopards and regards them as his own, decides to step in and lend a hand.

When out-of-shape IT technician Roen Tan woke up and started hearing voices in his head, he naturally assumed he was losing it.

He wasn't.

He now has a passenger in his brain -- an ancient alien life-form called Tao, whose race crash-landed on Earth before the first fish crawled out of the oceans. Now split into two opposing factions -- the peace-loving, but under-represented Prophus, and the savage, powerful Genjix -- the aliens have been in a state of civil war for centuries. Both sides are searching for a way off-planet, and the Genjix will sacrifice the entire human race, if that's what it takes.

Meanwhile, Roen is having to train to be the ultimate secret agent. Like that's going to end up well...

WHO OWNS THE STARS?

For ten thousand years Nova Babylonia has been the greatest city of the Second Sphere, an interstellar civilization of human and other beings who have been secretly removed, throughout history, from Earth.

Now humans from the far reaches of the Sphere have come, to offer immortality-and to urge them to build defenses against the alien invasion they know is coming.

As humans and aliens compete and conspire, the wheels of history will lathe all the players into shapes new and surprising. The alien invasion will reach New Babylon at last-led by the most alien figure of all.

A collection of 14 short science fiction stories by the author of "Norstrilia" and "The Rediscovery of Man". Each tale is set in an extraordinary universe of scanners, planoforming ships and animal-derived Underpeople.

Table of Contents:

• Timeline from The Instrumentality of Mankind - (1975) - essay by John J. Pierce
• Introduction - essay by Frederik Pohl
• No, No, Not Rogov! - (1959)
• War No. 81-Q - (1928)
• Mark Elf - (1957)
• The Queen of the Afternoon - (1978)
• When the People Fell - (1959)
• Think Blue, Count Two - (1963)
• The Colonel Came Back from the Nothing-at-All - (1979)
• From Gustible's Planet - (1962)
• Drunkboat - (1963)
• Western Science Is So Wonderful - (1958)
• Nancy - (1959)
• The Fife of Bodidharma - (1959)
• Angerhelm - (1959)
• The Good Friends - (1963)

Table of Contents:

• No, No, Not Rogov! - (1959)
• The Lady Who Sailed the Soul - (1960) - novelette by Cordwainer Smith and Genevieve Linebarger
• Scanners Live in Vain - (1950)
• The Game of Rat and Dragon - (1955)
• The Burning of the Brain - (1958) -
• Golden the Ship Was - Oh! Oh! Oh! - (1959) - shortstory by Cordwainer Smith and Genevieve Linebarger
• Alpha Ralpha Boulevard - (1961)
• Mark Elf - (1957)

Rod McBan owned Earth.

One night of frenzied manipulation had made an obscure rancer on a far planet the richest man in history, and the sole owner of Man's home planet. It had also made him the target of every criminal in the Universe.

There was one way Rod McBan could reach the planet he owned - alive. But it meant he would have to die first...

The Planet Buyer and The Underpeople were combined into the novel Norstrilia.

The Underpeople were mutated from animal stock to serve mankind. They lived Deepdown in the forgotten corridors and caverns of Old Earth, servants to the men who bred them in their own image.

But even the Underpeople dream - and often have strange powers. And now they have a strange ally in the richest man who ever lived: the man who owned the whole planet.

The Planet Buyer and The Underpeople were combined into the novel Norstrilia.

No species has ever reached for the stars without the guidance of a patron--except perhaps mankind. Did some mysterious race begin the uplift of humanity aeons ago? Circling the sun, under the caverns of Mercury, Expedition Sundiver prepares for the most momentous voyage in history--a journey into the boiling inferno of the sun.

David Brin's Uplift novels are among the most thrilling and extraordinary science fiction ever written. Sundiver, Startide Rising, and The Uplift War -- a New York Times bestseller -- together make up one of the most beloved sagas of all time. Brin's tales are set in a future universe in which no species can reach sentience without being "uplifted" by a patron race. But the greatest mystery of all remains unsolved: who uplifted humankind?

The Terran exploration vessel Streaker has crashed in the uncharted water world of Kithrup, bearing one of the most important discoveries in galactic history. Below, a handful of her human and dolphin crew battles armed rebellion and a hostile planet to safeguard her secret -- the fate of the Progenitors, the fabled First Race who seeded wisdom throughout the stars.

David Brin's Uplift novels are among the most thrilling and extraordinary science fiction ever written. Sundiver, Startide Rising, and The Uplift War--a New York Times bestseller--together make up one of the most beloved sagas of all time. Brin's tales are set in a future universe in which no species can reach sentience without being "uplifted" by a patron race. But the greatest mystery of all remains unsolved: who uplifted humankind?

As galactic armadas clash in quest of the ancient fleet of the Progenitors, a brutal alien race seizes the dying planet of Garth. The various uplifted inhabitants of Garth must battle their overlords or face ultimate extinction. At stake is the existence of Terran society and Earth, and the fate of the entire Five Galaxies. Sweeping, brilliantly crafted, inventive and dramatic, The Uplift War is an unforgettable story of adventure and wonder from one of today's science fiction greats.

David Brin's Uplift novels -- Sundiver, Hugo award winner The Uplift War, and Hugo and Nebula winner Startide Rising--are among the most thrilling and extraordinary science fiction tales ever written. Now David Brin returns to this future universe for a new Uplift trilogy, packed with adventure, passion and wit.

The planet Jijo is forbidden to settlers, its ecology protected by guardians of the Five Galaxies. But over the centuries it has been resettled, populated by refugees of six intelligent races. Together they have woven a new society in the wilderness, drawn together by their fear of Judgment Day, when the Five Galaxies will discover their illegal colony. Then a strange starship arrives on Jijo. Does it bring the long-dreaded judgment, or worse -- a band of criminals willing to destroy the six races of Jijo in order to cover their own crimes?

Nebula and Hugo award-winning author David Brin continues his bestselling Uplift series in this second novel of a bold new trilogy. Imaginative, inventive, and filled with Brin's trademark mix of adventure, passion, and wit, Infinity's Shore carries us further than ever before into the heart of the most beloved and extraordinary science fiction sagas ever written.

For the fugitive settlers of Jijo, it is truly the beginning of the end. As starships fill the skies, the threat of genocide hangs over the planet that once peacefully sheltered six bands of sapient beings. Now the human settlers of Jijo and their alien neighbors must make heroic, and terrifying, choices. A scientist must rally believers for a cause he never shared. And four youngsters find that what started as a simple adventure - imitating exploits in Earthling books by Verne and Twain - leads them to the dark abyss of mystery. Meanwhile, the Streaker, with her fugitive dolphin crew, arrives at last on Jijo in a desperate search for refuge. Yet what the crew finds instead is a secret hidden since the galaxies first spawned intelligence - a secret that could mean salvation for the planet and its inhabitants... or their ultimate annihilation.

Winner of the Nebula and Hugo Awards, David Brin brings his bestselling Uplift series to a magnificent conclusion with his most imaginative and powerful novel to date--the shattering epic of a universe poised on the brink of revelation...or annihilation.

The brutal enemy that has relentlessly pursued them for centuries has arrived. Now the fugitive settlers of Jijo--both human and alien--brace for a final confrontation. The Jijoans' only hope is the Earthship Streaker, crewed by uplifted dolphins and commanded by an untested human.

Yet more than just the fate of Jijo hangs in the balance. For Streaker carries a cargo of ancient artifacts that may unlock the secret of those who first brought intelligent life to the Galaxies. Many believe a dire prophecy has come to pass: an age of terrifying changes that could end Galactic civilization.

As dozens of white dwarf stars stand ready to explode, the survival of sentient life in the universe rests on the most improbable dream of all--that age-old antagonists of different races can at last recognize the unity of all consciousness.

The "war with no name" has begun, with human extinction as its goal. The instigator of this war is the Colony, a race of intelligent ants who, for thousands of years, have been silently building an army that would forever eradicate the destructive, oppressive humans. Under the Colony's watchful eye, this utopia will be free of the humans' penchant for violence, exploitation and religious superstition. The final step in the Colony's war effort is transforming the surface animals into high-functioning two-legged beings who rise up to kill their masters.

Former housecat turned war hero, Mort(e) is famous for taking on the most dangerous missions and fighting the dreaded human bio-weapon EMSAH. But the true motivation behind his recklessness is his ongoing search for a pre-transformation friend--a dog named Sheba. When he receives a mysterious message from the dwindling human resistance claiming Sheba is alive, he begins a journey that will take him from the remaining human strongholds to the heart of the Colony, where he will discover the source of EMSAH and the ultimate fate of all of earth's creatures.

It is the year 2047, and nuclear engineer Michael Poole is still in the throes of grief. His beloved wife, Morag, died seventeen years ago, along with their second child. Yet Michael is haunted by more than just the memory of Morag. On a beach in Miami, he sees his dead wife. But she vanishes as suddenly as she appears, leaving no clue as to her mysterious purpose.

Alia was born on a starship, fifteen thousand light years from Earth, five hundred thousand years after the death of Michael Poole. Yet she knows him intimately. In this distant future, when humanity has diversified as a species and spread across the galaxy, every person is entrusted with the duty of Witnessing the life of one man, woman, or child from the past, recovered by means of a technology able to traverse time itself. Alia's subject is Michael Poole.

When his surviving, estranged son is injured, Michael tries to reconnect with him–and to stave off a looming catastrophe. Vast reservoirs of toxic gases lie buried beneath the poles, trapped in crystals of ice. Now that ice is melting. Once it goes, the poisons released will threaten all life on Earth. A bold solution is within reach, if only Michael can convince a doubting world. Yet as Morag's ghostly visitations continue, Michael begins to doubt his own sanity.

In the future, Alia is chosen to become a Transcendent, an undying member of the group mind that is shepherding humanity toward an evolutionary apotheosis. The Witnessings are an integral part of their design, for only by redeeming the pain of every human who has lived and died can true Transcendence be achieved. Yet Alia discovers a dark side to the Transcendents' plans, a vein of madness that may lead to an unthinkable renunciation.

Somehow, Michael Poole holds the fate of the future in his hands. Now, to save that future, Alia must undertake a desperate journey into the past....