And suddenly uncertainty and change had come to the placid paradise that was Thalassa.

    Strange fireballs race through the sky above the deepest trenches of the oceans. Something is about to show itself, something terrible and alien, a force capable of causing global catastrophe.

    Sometimes I even ask myself if all this has really happened, if its pictures dwell in truth in my memory, and not merely in my imagination. In my position as head inspector in the federal police department at Washington, urged on moreover by the desire, which has always been very strong in me, to investigate and understand everything which is mysterious, I naturally became much interested in these remarkable occurrences. And as I have been employed by the government in various important affairs and secret missions since I was a mere lad, it also happened very naturally that the head of my department placed In my charge this astonishing investigation, wherein I found myself wrestling with so many impenetrable mysteries.

    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.

    A radiation bomb planted in his dorm room changed him from an innocent student at the University of Earth to a marked man, fleeing desperately from an unknown assassin.He soon discovers that, many light-years away, his father, the highly respected Rancher of Widemos, has been murdered. Stunned, grief-stricken, and outraged, Biron is determined to uncover the reasons behind his father’s death, and becomes entangled in an intricate saga of rebellion, political intrigue, and espionage.The mystery takes him deep into space where he finds himself in a relentless struggle with the power-mad despots of Tyrann. Now it is not just a case of life or death for Biron, but a question of freedom for the galaxy.

    Earth has been dominated for 1,000 years by an alien invader—and man is an endangered species. From the handful of surviving humans a courageous leader emerges—Jonnie Goodboy Tyler, who challenges the invincible might of the alien Psychlo empire in a battle of epic scale, danger and intrigue with the fate of the Earth and of the universe in the tenuous balance.

    Journalist Edward Malone, rejected by the woman he loves because he is too prosaic, decides to go in search of adventure and fame to prove himself worthy of her. Soon after, he meets Professor George Challenger, a scientist who claims to have discovered a 'lost world' populated by pterodactyls and other prehistoric monsters.

    For fifteen years, subterranean humanity has been fed on daily broadcasts of a never-ending nuclear destruction, sustained by a belief in the all powerful Protector. But up on Earth's surface, a different kind of reality reigns. East and West are at peace. Across the planet, an elite corps of expert hoaxers preserve the lie.Cover Illustration: Chris Moore

    What he hadn't expected was that when the apocalypse came, a thermonuclear blast would tear apart the fabric of time and hurl his shelter into a world with no sign of other human beings.

    In this nightmare society, air pollution is so bad that gas masks are commonplace. Infant mortality is up, and everyone seems to suffer from some form of ailment.

    The last remnants of humanity are fighting for survival, terrorised by the carnivorous plants and the grotesque insect life.Contents:· Hothouse · Brian W. Aldiss · nv F&SF Feb ’61 · Nomansland · Brian W. Aldiss · nv F&SF Apr ’61 · Undergrowth · Brian W. Aldiss · na F&SF Jul ’61 · Timberline · Brian W. Aldiss · nv F&SF Sep ’61 · Evergreen · Brian W. Aldiss · na F&SF Dec ’61

    Hellstrom's Project 40 was a cover for a secret laboratory, a special team of agents was immediately dispatched to discover its true purpose and its weaknesses—it could not be allowed to continue. What they discovered was a nightmare more horrific and hideous than even their paranoid government minds could devise.First published in Galaxy magazine in 1973 as "Project 40," Frank Herbert's vivid imagination and brilliant view of nature and ecology have never been more evident than in this classic of science fiction.

    First published in 1966, Harrison's novel of an overpopulated urban jungle, a divided class system—operating within an atmosphere of riots, food shortages, and senseless acts of violence—and a desperate hunt for the truth by a cynical NYC detective tells a classic tale of a dark future.

    Anderson. Working from Frank Herbert's own notes, the acclaimed authors reveal the chapter of the Dune saga most eagerly anticipated by readers: the Butlerian Jihad.Throughout the Dune novels, Frank Herbert frequently referred to the war in which humans wrested their freedom from "thinking machines." In Dune: The Butlerian Jihad, Brian Herbert and Kevin J. Anderson bring to life the story of that war, a tale previously seen only in tantalizing hints and clues. Finally, we see how Serena Butler's passionate grief ignites the struggle that will liberate humans from their machine masters; here is the amazing tale of the Zensunni Wanderers, who escape bondage to flee to the desert world where they will declare themselves the Free Men of Dune. And here is the backward, nearly forgotten planet of Arrakis, where traders have discovered the remarkable properties of the spice melange....

    Once he was outbound, where the Society that ruled Earth could not reach him, he headed his starship toward the galactic core, where the unimaginable energies of the Universe wrenched the fabric of time and space and promised final escape from his captors.Then he returned to an Earth eons older than the one he'd left...a planet that had had 3,000,000 years to develop perils he had never dreamed of -- perils that became nightmares that he had to escape...somehow!