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"

    It is said a race of shapeshifters once lived here, only to perish when men came. But one man believes they can still be found, somewhere in the back of the beyond.In The Fifth Head of Cerberus, Wolfe skillfully interweaves three bizarre tales to create a mesmerizing pattern: the harrowing account of the son of a mad genius who discovers his hideous heritage; a young man's mythic dreamquest for his darker half; the bizarre chronicle of a scientists' nightmarish imprisonment. Like an intricate, braided knot, the pattern at last unfolds to reveal astonishing truths about this strange and savage alien landscape.

    Kirk is the youngest man to be promoted to the rank of captain in Federation history. His crew consists of a first officer who finds him impetuous; a chief engineer who finds him arrogent; a chief medical officer who finds him trifling; and a helmsman who wants a transfer. But the young crew, which would later become the legendary space explorers, quickly puts aside their differences when a monstrous starship appears on their nascent flight path.

    Lars Powderdry and Lilo Topchev are counterpart weapons fashion designers for a world divided into two factions - Wes-bloc and Peep-East. Since the Plowshare Protocols of 2002, their job has been to invent elaborate weapons that only seem massively lethal. But when alien satellites hostile to both sides appear in the sky, the two are brought together in the dire hope that they can create a weapon to save the world, a task made all the more difficult by Lars falling in love with Lilo even as he knows she's trying to kill him.

    We just call it “The Bug War." Everything up to then and still later were "incidents," "patrols," or "police actions." However, you are just as dead if you buy the farm in an "incident" as you are if you buy it in a declared war...In one of Robert A. Heinlein’s most controversial bestsellers, a recruit of the future goes through the toughest boot camp in the Universe—and into battle with the Terran Mobile Infantry against mankind’s most alarming enemy.

    According to Locus, Hardwired is Walter Jon Williams's "best book to date".Ex-fighter pilot Cowboy, "hardwired" via skull sockets directly to his lethal electronic hardware, teams up with Sarah, an equally cyborized gun-for-hire, to make a last stab at independence from the rapacious Orbitals.

    Destroyer of Worlds. Conqueror of Other Worlds. Mad Genius. Ex-Warlord of Earth.Not bad for a guy without a spine.But what's a villain to do after he's done . . . everything. With no new ambitions, he's happy to pitch in and solve the energy crisis or repel alien invaders should the need arise, but if he had his way, he'd prefer to be left alone to explore the boundaries of dangerous science. Just as a hobby, of course.Retirement isn't easy though. If the boredom doesn't get him, there's always the Venusians. Or the Saturnites. Or the Mercurials. Or . . . well, you get the idea. If that wasn't bad enough, there's also the assassins of a legendary death cult and an up-and-coming megalomaniac (as brilliant as he is bodiless) who have marked Emperor for their own nefarious purposes. But Mollusk isn't about to let the Earth slip out of his own tentacles and into the less capable clutches of another. So it's time to dust off the old death ray and come out of retirement. Except this time, he's not out to rule the world. He's out to save it from the peril of THE SINISTER BRAIN!

    Dreaming that the real world could be a little more like the countless science-fiction books, movies, and videogames he’s spent his life consuming. Dreaming that one day, some fantastic, world-altering event will shatter the monotony of his humdrum existence and whisk him off on some grand space-faring adventure. But hey, there’s nothing wrong with a little escapism, right? After all, Zack tells himself, he knows the difference between fantasy and reality. He knows that here in the real world, aimless teenage gamers with anger issues don’t get chosen to save the universe. And then he sees the flying saucer. Even stranger, the alien ship he’s staring at is straight out of the videogame he plays every night, a hugely popular online flight simulator called Armada—in which gamers just happen to be protecting the earth from alien invaders. No, Zack hasn’t lost his mind. As impossible as it seems, what he’s seeing is all too real. And his skills—as well as those of millions of gamers across the world—are going to be needed to save the earth from what’s about to befall it. It’s Zack’s chance, at last, to play the hero. But even through the terror and exhilaration, he can’t help thinking back to all those science-fiction stories he grew up with, and wondering: Doesn’t something about this scenario seem a little…familiar? At once gleefully embracing and brilliantly subverting science-fiction conventions as only Ernest Cline could, Armada is a rollicking, surprising thriller, a classic coming of age adventure, and an alien invasion tale like nothing you’ve ever read before—one whose every page is infused with the pop-culture savvy that has helped make Ready Player One a phenomenon.

    An instant classic, Micro pits nature against technology in vintage Crichton fashion. Completed by visionary science writer Richard Preston, this boundary-pushing thriller melds scientific fact with pulse-pounding fiction to create yet another masterpiece of sophisticated, cutting-edge entertainment.

    They can't contact the aliens in any way or understand their language. All they can do is watch.Then, without warning, a military cordon is imposed on the Blind Lake site. All communication with the outside world is cut off. Food and other vital supplies are delivered by remote control. No one knows why.The scientists, nevertheless, go on with their research. Among them are Nerissa Iverson and the man she recently divorced, Raymond Scutter. They continue to work together despite the difficult conditions and the bitterness between them. Ray believes their efforts are doomed; that culture is arbitrary, and the aliens will forever be an enigma.Nerissa believes there is a commonality of sentient thought, and that our failure to understand is our own ignorance, not a fact of nature. The behavior of the alien she has been tracking seems to be developing an elusive narrative logic--and she comes to feel that the alien is somehow, impossibly, aware of the project's observers.But her time is running out. Ray is turning hostile, stalking her. The military cordon is tightening. Understanding had better come soon...

    This would have worked out better for all involved if they hadn’t arrived after a mutated plague wiped out half the planet, turned the rest into shambling, near-unstoppable animals, and basically destroyed human civilization. You know—your standard apocalypse. The Krakau’s first impulse was to turn their ships around and go home. After all, it’s hard to establish diplomatic relations with mindless savages who eat your diplomats. Their second impulse was to try to fix us. A century later, human beings might not be what they once were, but at least they’re no longer trying to eat everyone. Mostly.Marion “Mops” Adamopoulos is surprisingly bright (for a human). As a Lieutenant on the Earth Mercenary Corps Ship Pufferfish, she’s in charge of the Shipboard Hygiene and Sanitation team. When a bioweapon attack by an alien race wipes out the Krakau command crew and reverts the rest of the humans to their feral state, only Mops and her team are left with their minds intact.Escaping the attacking aliens—not to mention her shambling crewmates—is only the beginning. Sure, Mops and her assortment of space janitors and plumbers can clean the ship, but flying the damn thing is another matter. As they struggle to keep the Pufferfish functioning and find a cure for their crew, they stumble onto a conspiracy that could threaten the entire alliance.A conspiracy born from the truth of what happened on Earth all those years ago…

    Helliconia is emerging from its centuries-long winter. The tribes of the equatorial continent emerge from their hiding places and are again able to dispute possession of the planet with the ferocious phagors. In Oldorando, love, trade and coinage are being redisovered,This is the first volume of the Helliconia Trilogy -- a monumental saga that goes beyond anything yet created by this master among today's imaginative writers.

    A gifted chemist vying for a place at the university, David leads a secret life as a manufacturer for a ruthless drug dealer. When his friend Leelee goes missing, leaving signs of the dealer's involvement, David takes it upon himself to save her. But first he must shake his aunt Bobbie Draper, an ex-marine who has been set adrift in her own life after a mysterious series of events nobody is talking about. Set in the hard-scrabble solar system of Leviathan Wakes and Caliban's War, "Gods of Risk" deepens James S. A. Corey's acclaimed Expanse series.

    Humanity's last survivors escaped earth's ruins to find a new home. But when they find it, can their desperation overcome its dangers?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. In the long years since the planet was abandoned, the work of its architects has borne disastrous fruit. The planet is not waiting for them, pristine and unoccupied. New masters have turned it from a refuge into mankind's worst nightmare.Now two civilizations are on a collision course, both testing the boundaries of what they will do to survive. As the fate of humanity hangs in the balance, who are the true heirs of this new Earth?

    Now its fleet is crippled and stranded in enemy territory. Their only hope is a man who's emerged from a century-long hibernation to find he has been heroically idealized, beyond belief...Captain John "Black Jack" Geary's legendary exploits are known to every schoolchild. Revered for his heroic "last stand" in the early days of the war, he was presumed dead. But a century later, Geary miraculously returns from survival hibernation and reluctantly takes command of the Alliance fleet as it faces annihilation by the Syndics.Appalled by the hero-worship around him, Geary is nevertheless a man who will do his duty. And he knows that bringing the stolen Syndic hypernet key safely home is the Alliance's one chance to win the war. But to do that, Geary will have to live up to the impossibly heroic "Black Jack" legend...