. . a sophisticated traveler between many worlds. But he had certainly never thought of himself as a hero.Skua September, on the other hand, never thought of himself as anything else.A matched pair, if ever there was one!When the two of them were suddenly stranded on a deadly frozen world, Ethan Fortune incredibly found himself cast in the role of Leader.And he didn't find that at all amusing . . .

    Avalon seems perfect, a verdant, livable world still in its prehistoric age. The biologists and engineers who busy themselves planting and building scoff at the warnings of professional soldier Cadmann Weyland until a large, unnaturally fast and cunning predator begins stalking the colony. Learning how to kill the beast is only the first step, for they must then reevaluate their entire understanding of Avalon's ecology.

    Human colonists serve as world-building crash-test dummies, dropped onto empty planets deemed too dangerous or inconvenient for other races, to pave over whatever marvels and threats evolution had put there. Like so many others, Ramon Espejo ran from the poverty and hopelessness of the Third World to the promise of a new world, joining a host of like-minded workers and dreamers aboard one of the great starships of the mysterious, repulsive Enye. But the life he found on the far-off planet of Sao Paulo was no better than the one he had abandoned.Tough, volatile, and angry, a luckless prospector hoping for that one rich strike that will make him wealthy, Ramon is content only when on his own out in the bush, far from the dirty, loud, bustling hive of humanity that he detests with sociopathic fervor. Then one night his rage and too much alcohol get the better of him, resulting in sudden bloodshed and a high-profile murder.Ramon is forced to flee into the wilderness for however long it will take for the furor to die down. Here, mercifully, almost happily alone, Ramon is once again free. But while searching for his long-elusive lode, he stumbles upon something completely unexpected: a highly advanced alien race in hiding; fugitives like himself on a world not their own.Suddenly in possession of a powerful, dangerous secret, Ramon must battle for his freedom from alien captors and also against the hostile and unpredictable planet. And so the chase begins. Police, fugitive aliens, and a human murderer weave a web of shifting alliances as Ramon enters the greatest manhunt the alien world of Sao Paulo has ever known. If he is to survive, Ramon must overcome inscrutable aliens and deadly predators, but his greatest enemy is himself. With every move in the desperate game, he struggles to outwit his enemies and solve the mystery of a murder he himself committed. A rip-roaring adventure tale and character study of a fascinating and twisted mind, "Hunter's Run" showcases three masters of the form at their best.

    

    At his side, a mysterious woman whose life and memory he saved, whose love he has won for a second time. His name is Derec; hers is Ariel. And their story has only begun to be told...In Robot City, the late science fiction genius Isaac Asimov challenged a talented group of science fiction writers to resolve the conundrums he set for them in the context of his famous Three Laws of Robotics. In Robots and Aliens, a new challenge was put forth: What would happen if the robots of Asimov's universe were to meet alien races? Would the Three Laws that protect both humans and robots still apply when dealing with a species that is neither...?This pair of adventures, enhanced with a pair of essays by Asimov himself, continue the saga of Robot City, where the finest minds in science fiction enter the most futuristic landscape in robot history!

    Shanghaied from the moon, unlikely hero Barry di Hoa makes an unstable situation explosive. Pohl's surprising SF thriller is sure to please his legions of fans.

    But for every Explorer there is somewhere a planet he will not leave. For some, the cause is love. For others, the desire to give up the strange roving life of the star wanderers who live outside of planet-time. Even for the ones who love the metal ships that are their only home there is still a planet waiting, a planet that will hold them forever - in the final clasp of death. But until then, life is adventure and wonders undreamed of by mere planet dwellers, an Endless Universe of the unknown.This edition contains over 30,000 words of material never before published in any form. The original text has been revised in detail.

    At least that was the theory American scientists were exploring in an effort to explain the new sources of knowledge the Russians possessed. Perhaps Russian scientists had discovered how to transport themselves back in time in order to learn long-forgotten secrets of the past. That was why young Ross Murdock, above average in intelligence but a belligerently independent nonconformist, found himself on a "hush-hush" government project at a secret base in the Arctic. The very qualities that made him a menace in civilized society were valuable traits in a man who must successfully act the part of a merchant trader of the Beaker people during the Bronze Age.For once they were transferred by time machine to the remote Baltic region where the Russian post was located, Ross and his partner Ashe were swept into a fantastic action-filled adventure involving Russians, superstitious prehistoric men, and the aliens of a lost galactic civilization that demanded every ounce of courage the Americans possessed.Approx. 7 hours

    DINOSAUR PLANET and SURVIVORS: a vaulting feat of imagination from the Hugo and Nebula award-winning author of the classic DRAGON books.

    Jim Briskin, campaigning to be the first black president of the United States, thinks alter-Earth is the solution to the chronic overpopulation that has seventy million people cryogenically frozen; Tito Cravelli, a shadowy private detective, wants to know why Dr Lurton Sands is hiding his mistress on the planet; billionaire mutant George Walt wants to make the empty world all his own. But when the other earth turns out to be inhabited, everything changes.Winner of both the Hugo and John W. Campbell awards for best novel, widely regarded as the premiere science fiction writer of his day, and the object of cult-like adoration from his legions of fans, Philip K. Dick has come to be seen in a literary light that defies classification in much the same way as Borges and Calvino. With breathtaking insight, he utilizes vividly unfamiliar worlds to evoke the hauntingly and hilariously familiar in our society and ourselves.

    He calls on his friend Tars Tarkas to help, but their journey to recover the princess is an eventful and sometimes dangerous one. Among other encounters, they have to face a city populated entirely by rats - not to mention, of course, the giant of Mars - who is no less than 130 feet tall!This juvenile story was penned by Burrough’s son John “Jack” Coleman Burroughs, and claimed to have been revised by Burroughs.

    But a world of sinister secrets lurks just below the surface . . .Grad student Danae Panya’s dream assignment has been approved. She’ll study Triplet, the strange planetary system scarred by nuclear war and connected through portals. The most experienced Courier of Triplet, Ravagin, will lead her to its hidden worlds—Threshold, Shamsheer, and Karyx—and introduce her to their secrets, including their advanced technology, their dark magic, and the captivating demon culture of the innermost planet. But though they begin their journey with only scholarly research in mind, Danae and Ravagin quickly find themselves embroiled in the menacing dynamics roiling throughout Triplet. Will Ravagin be able to get them both out alive?

    In the twenty-third century pioneers have escaped the crowded earth for life in self-sustaining orbital colonies.  One of the colonies, Rotor, has broken away from the solar system to create its own renegade utopia around an unknown red star two light-years from Earth:  a star named Nemesis.  Now a fifteen-year-old Rotorian girl has learned of the dire threat that nemesis poses to Earth's people--but she is prevented from warning them.  Soon she will realize that Nemesis endangers Rotor as well.  And so it will be up to her alone to save both Earth and Rotor as--drawn inexorably by Nemesis, the death star--they hurtle toward certain disaster.

    21st century: The two realities collide...

    Inside that box is a door. Beyond that door is a house. In some rooms forests grow. In some, prisoners wait. At the top of the house, a prisoner sits behind a locked door waiting for a key to turn. The day that happens, the world will end...