. . and an ice cooler containing the head of a freshly killed Stegosaurus. For Leyster and a select group of scientific colleagues an impossible fantasy has come true: the ability to study dinosaurs up close, in their own era and milieu. But tampering with time and paradox can have disastrous effects on the future and the past alike, breeding a violent new strain of fundamentalist terror -- and, worse still, encouraging brilliant rebels like Dr. Gertrude Salley to toy with the working mechanisms of natural law, no matter what the consequences. And when they concern the largest, most savage creatures that ever walked the Earth, the consequences may be too horrifying to imagine . . .

    But there is much more to the story of the little Neanderthal boy plucked out of time and transferred to the 21st century. Now, Robert Silverberg--in this second collaboration with Asimov--has made this sf classic into an engrossing novel-length tale.

    But in the far distant future, a time travel team is preparing to snatch the passengers, leaving prefabricated smoking bodies behind for the rescue teams to find. And in Washington D.C., an air disaster investigator named Smith is about to get a phone call that will change his life...and end the world as we know it.

    Each sought his own brand of happiness. But none could have guessed what awaited them. Not even in a million years....

    Past, present, and future Brazil, with all its color, passion, and shifting realities, come together in a novel that is part SF, part history, part mystery, and entirely enthralling.Three separate stories follow three main characters:--Edson is a self-made talent impressario one step up from the slums in a near future São Paulo of astonishing riches and poverty. A chance encounter draws Edson into the dangerous world of illegal quantum computing, but where can you run in a total surveillance society where every move, face, and centavo is constantly tracked?--Marcelina is an ambitious Rio TV producer looking for that big reality TV hit to make her name. When her hot idea leads her on the track of a disgraced World Cup soccer goalkeeper, she becomes enmeshed in an ancient conspiracy that threatens not just her life, but her very soul. --Father Luis is a Jesuit missionary sent into the maelstrom of 18th-century Brazil to locate and punish a rogue priest who has strayed beyond the articles of his faith and set up a vast empire in the hinterland. In the company of a French geographer and spy, what he finds in the backwaters of the Amazon tries both his faith and the nature of reality itself to the breaking point.Three characters, three stories, three Brazils, all linked together across time, space, and reality in a hugely ambitious story that will challenge the way you think about everything.

    . .Captain Pausert thought his luck had finally turned—but he did not yet realize it was a turn for the worse. On second thought, make that a turn for the disastrous*.Unlucky in love, unsuccessful in business, he thought he had finally made good with his battered starship Venture, cruising around the fringes of the Empire and successfully selling off odd-ball cargoes which no one else had been able to sell. He was all set to return home, where his true love was faithfully waiting for him ... he hoped.But then he made the fatal mistake of freeing three slave children from their masters (who were suspiciously eager to part with them). They were just trying to be helpful, but those three adorable little girls quickly made Pausert the mortal enemy of his fiancee, his home planet, the Empire, warlike Sirians, psychopathic Uldanians, the dread pirate chieftain Laes Yango—and even the Worm World, the darkest threat to mankind in all of space.And all because those harmless-looking little girls were in fact three of the notorious and universally feared Witches of Karres.

    But the journey has a terrible cost. It alters not only the future but the "present" in which we live.A century after the publication of H. G. Wells' immortal The Time Machine, Stephen Baxter, today's most acclaimed new "hard SF" author, and the acknowledged Clarke, returns to the distant conflict between the Eloi and the Morlocks in a story that is at once an exciting expansion, and a radical departure based on the astonishing new understandings of quantum physics.

     Humanity is not alone in the cosmos. The aliens have given a precious relic to the people of Earth: star-stone. But the harmony of the galaxy is endangered when they discover that the star-stone has disappeared. Likeable Fred Cassidy is an eternal undergraduate. All he thinks he knows about the star-stone is that it came to Earth in an interplanetary trade for the Mona Lisa and the British Crown jewels. When Fred is accused of stealing the cosmic artefact, he is pursued from Australia to Greenwich Village and beyond, by telepathic psychologists, extra-terrestrial hoodlums and galactic police in disguise. Follow him on his adventures as he enters multiple realities, flipping in and out of alien perspectives, through doorways in the sand.

    Mia Havero's Ship is a small closed society. It tests its children by casting them out to live or die in a month of Trial in the hostile wilds of a colony world. Mia Havero's Trial is fast approaching and in the meantime she must learn not only the skills that will keep her alive but the deeper courage to face herself and her world. Published originally in 1968, Alexei Panshin's Nebula Award-winning classic has lost none of its relevance, with its keen exploration of societal stagnation and the resilience of youth.

    "One is ultimately awed... it may be the most ambitious novel I've ever read." -- Washington Post Book World

    He started it when he was in the US Army, so it has a long prison sequence that is reminiscent of that experience, being dark and grim. It features Aton Five, a space man who commits the crime of falling in love with the dangerous alluring Minionette and is therefore condemned to death in the subterranean prison of Chthon. It uses flashbacks to show how he came to know the Minionette, and flashforwards to show how he dealt with her after his escape from prison. The author regards this as perhaps the most intricately structured novel the science fantasy genre has seen. It was a contender for awards, but not a winner.

    based on some real, honest, practical ethical thinking. It is an idea book.' - Groff Conklin in Galaxy Science FictionAsher Sutton has been lost in deepest space for twenty years. Suddenly arrives a warning from the future, that he will return- and that he must be killed. He is destined to write a book whose message may lead to the death of millions in centuries to come. For this reason Sutton is hounded by the sinister warring factions of the future who wish to influence or prevent the writing of this book he has not yet begun to write.Yet already a copy has been found in the burnt-out wreckage of a space-craft on Aldebaran XII.

    Here, violence is a vague and improbable notion. Technology has triumphed over hunger, overpopulation, pollution, even time and space. But there is a change Charlie finds even more shocking: gender is a thing of the past. Venus Plus X is Theodore Sturgeon's brilliant evocation of a civilization for whom tensions between male and female and the human preoccupation with sex no longer exist. As Charlie Johns explores Ledom and its people, he finds that the human precepts he holds dear are profane in this new world. But has Charlie learned all there is to know about this advanced society? And why are the Ledom so intent on gaining Charlie's approval? Unsettling, compelling, and no less than visionary, here is science fiction at its boldest: a novel whose wisdom and lyricism make it one of the most original and insightful speculations on gender ever produced.

    In the year 1998, a group of scientists works desperately to communicate with the scientists of 1962, warning of an ecological disaster that will destroy the oceans in the future--if it is not averted in the past.

    Early in human history, certain individuals were born who live on, unaging, undying, through the centuries and millenia. We follow them through over 2000 years, up to our time and beyond-to the promise of utopia, and to the challenge of the stars.A milestone in modern science fiction, a New York Times Notable Book on its first publication in 1989, this is one of a great writer's finest works.