Humanity’s greatest dreams have become reality. Along with dozens of other sentient races, the people of Earth have formed the United Federation of Planets—a galactic civilization that governs much of the known universe for the good of all. Over the past two centuries, mankind has tamed its basest instincts, and reached the stars…But suppose it hadn’t happened that way at all? Suppose instead humanity’s darkest impulses, its most savage, animalistic desires had triumphed? Suppose that the empire mankind made out in the stars was one ruled by terror, where only those willing to brutalize their own kind and their neighbors could survive?One hundred years ago, four crewmembers of the U.S.S. Enterprise crossed the dimensional barrier and found just such an empire. A mirror image of their own universe, populated by nightmare duplicates of their shipmates. Barely able to escape with their lives, they returned thankful that the accident that brought them there could not be duplicated. Or so they thought.But now the scientists of that empire have found a doorway into our universe. Thier plan: to destroy from within, to replace one of our starships with one of theirs. Their victims: the crew of the U.S.S. Enterprise NCC 1701-D.

    Pull up a chair, grab a glass of your favorite, and listen to the stories spun by time travelers, cybernetic aliens, telepaths...and a bunch of regular folks on a mission to save the world, one customer at a time.Callahan's Crosstime Saloon contains the following stories, virtually all of which were published in Analog Science Fiction and Fact: * "The Guy With the Eyes" * "The Time-Traveler" * "The Centipede's Dilemma" * "Two Heads Are Better Than One" * "The Law Of Conservation of Pain" * "Just Dessert" * "A Voice is Heard in Ramah..." * "Unnatural Causes" * "The Wonderful Conspiracy"

    You can call him the Songbird – but only once. He's after Santiago.Virtue Mackenzie: Freelance reporter. She never gives up. She wants an interview... with Santiago.The Swagman: He collects art – at gun point. He wants a few pieces currently in the hands of Santiago.Santiago: Bandit, murderer, known to all, seen by none... has he killed a thousand men? Has he saved a dozen worlds? His legend is as large as the Rim itself, his trail as elusive as a wisp of starlight in the empty realms of space. The reward for him is the largest in history.Santiago: Do you dare chase him?

    Most of the planet's wild terrain was unexplored...and many of its peoples seclusive and secretive.But for Andrew Carr there was an attraction he could not evade. Darkover drew him, Darkover haunted him--and when his mapping plane crashed in unknown heights, Darkover prepared to destroy him.Until the planet's magic asserted itself--and his destiny began to unfold along lines predicted only by phantoms and wonder workers of the kind Terran science could never acknowledge.THE SPELL SWORD is a Darkover novel to stand with the great ones of the series.

    Cavor soon succeeds in his experiments, only to tell a stunned Bedford the invention makes possible one of the oldest dreams of humanity: a journey to the moon. With Bedford motivated by money, and Cavor by the desire for knowledge, the two embark on the expedition. But neither are prepared for what they find - a world of freezing nights, boiling days and sinister alien life, on which they may be trapped forever.

    Murdoc Jern, gem trader, finds that possession of the stone has led him to the center of a web of intrigue and murder.With his companion Eet, an inscrutable feline mutant with phenomenal ESP powers, he is hunted through space, coming finally to a long forgotten planet inhabited by apelike "sniffers." There, facing the predatory sniffers, the antagonistic Patrol and the laser-guns of the Thieves' Guild, Murdoc must seek the source of the Zero Stone and bargain for his right to pursue his destiny as a free man.

    The work of English clergyman, educator and Shakespearean scholar Edwin A. Abbott (1838-1926), it describes the journeys of A. Square [sic – ed.], a mathematician and resident of the two-dimensional Flatland, where women-thin, straight lines-are the lowliest of shapes, and where men may have any number of sides, depending on their social status.Through strange occurrences that bring him into contact with a host of geometric forms, Square has adventures in Spaceland (three dimensions), Lineland (one dimension) and Pointland (no dimensions) and ultimately entertains thoughts of visiting a land of four dimensions—a revolutionary idea for which he is returned to his two-dimensional world. Charmingly illustrated by the author, Flatland is not only fascinating reading, it is still a first-rate fictional introduction to the concept of the multiple dimensions of space. "Instructive, entertaining, and stimulating to the imagination." — Mathematics Teacher.

    Lady Chatterley left hers for the gamekeeper. Now Alice Coombs has her boyfriend for nothing … nothing at all.  Just how that should have come to pass and what Philip Engstrand, Alice’s spurned boyfriend, can do about it is the premise for this vertiginous speculative romance by the acclaimed author of Gun, with Occasional Music.Alice Coombs is a particle physicist, and she and her colleagues have created a void, a hole in the universe, that they have taken to calling Lack. But Lack is a nullity with taste — tastes; it absorbs a pomegranate, light bulbs, an argyle sock; it disdains a bow tie, an ice ax, and a scrambled duck egg. To Alice, this selectivity translates as an irresistible personality. To Philip, it makes Lack an unbeatable rival, for how can he win Alice back from something that has no flaws — because it has no qualities? Ingenious, hilarious, and genuinely mind-expanding, As She Climbed Across the Table is the best boy-meets-girl-meets-void story ever written.

    Miranda, an air-head beauty who lives to shop. And Kerwin, a nerd who just wants to fit in.They're not friends, and they don't even particularly like each other. But now this unlikely trio is the key to saving the universe. And they're in for the adventure of a their lives.Speed-of-light starships, intergalactic shopping sprees, and frontline action in an all-out space war lead them down the GLORY LANE.(The above description is from the book's back cover.)

    There's just one problem: They're hideously ugly and they smell like rotting fish. So getting humanity's trust is a challenge. The Yherajk need someone who can help them close the deal. Enter Thomas Stein, who knows something about closing deals. He's one of Hollywood's hottest young agents. But although Stein may have just concluded the biggest deal of his career, it's quite another thing to negotiate for an entire alien race. To earn his percentage this time, he's going to need all the smarts, skills, and wits he can muster.

    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.

    He is an eternal warrior destined to combat the Dark Lord through all time for dominion of the Earth. Follow him, servant of a great race, as he battles his enemy down the halls of time, from the caves of our ancestors to the final confrontation under the hammer of nuclear annihilation.