Since the ringed planet carries no life, scientists deduce the mysterious ship to be a visitor from another star.The world's frantic efforts to signal the aliens go unanswered. The first contact is hostile: the invaders blast a Soviet space station, seize the survivors, and then destroy every dam and installation on Earth with a hail of asteriods. Now the conquerors are descending on the American heartland, demanding servile surrender--or death for all humans.

    The other six days they're in suspended animation. The focus is on Jeff Caird, a daybreaker living more than a day a week. He's not like most daybreakers. He belongs to the radical Immer group working to create a better government. Not all Immers are daybreakers, but send information from one day to the next they've daybreakers like Jeff. Immer daybreakers assume seven different personalities & jobs, slipping from culture to culture in seven different worlds. While Jeff & the other six go day to day, they run into problems while working as Immer daybreakers. They must cover their tracks while trying to keep up with seven different lives, families & jobs. It could drive a man crazy. It does & the Immers must dispose of Jeff to keep the rest safe. Jeff, wanting to live, tries to escape, but they have undercover Immers in every job & government level. Jeff is caught & put in an asylum, classified with multiple personality disorder. If considered incurable he'll be killed. But Jeff has an escape plan. The sequels are Dayworld Rebel, '87 & Dayworld Breakup, '90.

    There are those who worship it. There are those who fear it. And there are those who have vowed to destroy it. In the Valley of the Time Tombs, where huge, brooding structures move backward through time, the Shrike waits for them all. On the eve of Armageddon, with the entire galaxy at war, seven pilgrims set forth on a final voyage to Hyperion seeking the answers to the unsolved riddles of their lives. Each carries a desperate hope—and a terrible secret. And one may hold the fate of humanity in his hands.

    The vital foodstuffs supplied by its Martian colony are being poisoned. Working in secret, the ruling Council of Science sends David Starr, its youngest member, to the Martian farmlands to discover the truth behind the murders...

    On a colony planet, a band of men has gained control of technology, made themselves immortal, and now rule their world as the gods of the Hindu pantheon. Only one dares oppose them: he who was once Siddhartha and is now Mahasamatman. Binder of Demons, Lord of Light.

    None are more memorable than her Witch World novels. Simon Tregarth, a man from our own world, escapes his doom through the gates to the Witch World. There he aids the witch Jaelithe's escape from the hounds of Alizon, only to find himself embroiled in a deeper war against an even deadlier foe: the Kolder.

    When Cirrocco Jones, captain of the spaceship Ringmaster, and his crew are captured by Gaea, a planet-sized creature that orbits around Saturn, they find themselves inside a bizarre world inhabited by centaurs, harpies, and constantly shifting environments

    As natural accidents occurred without cease, Alex knew Armageddon and the Day of Judgement were near. Somehow he had to bring his beloved heathen, Margrethe, to a state of grace, and, while he was at it, save the rest of the world ....

    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.

    Rails must be freshly laid ahead of the city & carefully removed in its wake. Rivers & mountains present nearly insurmountable challenges to the ingenuity of the city's engineers. But if the city does not move, it will fall farther & farther behind the optimum & into the crushing gravitational field that has transformed life on Earth. The only alternative to progress is death. The secret directorate that governs the city makes sure that its inhabitants know nothing of this. Raised in common in creches, nurtured on synthetic food, prevented above all from venturing outside the closed circuit of the city, they're carefully sheltered from the dire necessities that have come to define human existence. Yet the city is in crisis. People are growing restive. The population is dwindling. The rulers know that, for all their efforts, slowly but surely the city is slipping ever farther behind the optimum. Helward Mann is a member of the city's elite. Better than anyone, he knows how tenuous is the city's continued existence. But the world he's about to discover is infinitely stranger than the strange world he believes he knows so well.

    The title is a play on words, one meaning "the force which pulls" & the other being "extremely serious or important". It was serialized in Astounding Science Fiction, 4–7/53. Its 1st cloth publication was in '54. It was 1st published in paper in '58. Along with the novel itself, many editions (& most recent editions) of the book also include Whirligig World, an essay on creating the planet Mesklin that was published in the 6/53 Astounding. He published two sequels, a '70 novel called Star Light & a '73 short story called Lecture Demonstration. Mission of Gravity was nominated for a Retro Hugo Award for '54.For a profit & adventure Barlennan would sail thousands of miles across uncharted waters, into regions where gravity played strange tricks. He'd dare the perils of strange tribes & stranger creatures--even dicker with those aliens from beyond the skies, though the concept of another world was unknown to the inhabitants of the planet of Mesklin. But in spite of the incredible technology of the strangers & without regard for their enormous size, Barlennan had the notion of turning the deal to an unsuspected advantage for himself--a considerable enterprise for a being very much resembling a 15" caterpillar!

    Here a man is drawn into a gritty postmodern subculture and a secret kingdom of otherworldly beings to find what he lost long ago: a reason to live.Kit Nouveau figured he'd already come to the end of the world. An Iraqi war veteran, expatriate, and part owner of Pirate Mary's, the best Irish bar in Tokyo, Kit had settled down to await the inevitable with barely a whimper. It wasn't exactly how Kit thought he'd end up, and he was right.It's going to end up a lot worse.A teenage runaway with fifteen million dollars in stolen cash and a taste for cosplay is about to save Kit's life in a lethal swirl of scarlet and bridal lace. Lady Neku, a.k.a. Countess of High Strange, has her own dangerous destiny to fulfill and it's mysteriously connected to Kit's ravaged past. Now Kit's only hope for redemption is to save an ex-girlfriend he tragically failed once before. But everyone says it's already too late. And she's left behind only one ominous clue: her suicide note.

    No one knows that better than Albert Morris, a brash investigator with a knack for trouble, who has sent his own duplicates into deadly peril more times than he cares to remember. But when Morris takes on a ring of bootleggers making illegal copies of a famous actress, he stumbles upon a secret so explosive it has incited open warfare on the streets of Dittotown.Dr. Yosil Maharal, a brilliant researcher in artificial intelligence, has suddenly vanished, just as he is on the verge of a revolutionary scientific breakthrough. Maharal's daughter, Ritu, believes he has been kidnapped--or worse. Aeneas Polom, a reclusive trillionaire who appears in public only through his high-priced platinum duplicates, offers Morris unlimited resources to locate Maharal before his awesome discovery falls into the wrong hands.To uncover the truth, Morris must enter a shadowy, nightmare world of ghosts and golems where nothing--and no one--is what they seem, memory itself is suspect, and the line between life and death may no longer exist.

    Tracks the progress of a giant black cloud that comes towards Earth and sits in front of the sun, causing widespread panic and death. A select group of scientists and astronomers - including the dignified Astronomer Royal, the pipe smoking Dr Marlowe and the maverick, eccentric Professor Kingsly - engage in a mad race to understand and communicate with the cloud, battling against trigger happy politicians.

    Suddenly people can leap instantaneously across the universe, albeit temporarily, enabling teams of Tamers to explore far-flung worlds and prepare them for possible human habitation. But one expedition doesn’t make it back alive. Jacque Lefavre achieves his lifelong dream of becoming a Tamer when he joins the Agency for Extraterrestrial Development. On his first exploratory mission to a planet known as Groombridge, Lefavre and his team encounter something truly extraordinary: a small, nonsentient creature that, when joined with another of its kind, creates a telepathic “bridge.” But exploiting this psychic link could bring unanticipated perils, for it is about to bring Lefavre and his team into dangerously close contact with the L’vrai, an ancient, advanced, and hostile race of star travelers—an encounter that could prove to be the first step in humankind’s salvation . . . or its doom.