Books like The silent invaders by Robert Silverberg

Written in 1973, a massive 50 kilometre long alien cylinder begins to pass through the solar system provoking a hurried effort to intercept it. The closest available ship rushes to rendezvous so as to have a quick study before it gets too close to the sun. Able to enter via an airlock on one end of the ship, the crew explores the huge world found inside, a world full of wonder and mystery. As usual, the science is spot on. This is the best novel of Clarke's since 2001 and Childhood's End and is a truly grand adventure full of puzzles and ideas that lead you asking more questions than are answered. Enough questions in fact to lead to numerous inferior sequels, but enough answers to leave you satisfied. Don't pass up this gem of hard science fiction.

Science fiction classic about the rise, fall and subsequent rise of a civilization where the peak catastrophe is known as the "crazy eddy point". Introduces the concept of frictionless toilets that don't have any water in them but I suspect the authors didn't think it all the way through - I don't recall a negative air pressure that would keep odours in their rightfull place. Nevertheless a fascinating read. I haven't read this for donkeys years which is why I'm searching for an e-copy.

Heechee Saga

The story of temporal engineers who meta-regulate the history of humanity through the centuries, eliminating risk, adventure, and space travel in the process. One man rebels in order to save the existence of someone he loves, and in the end the time bureaucracy is destroyed for the sake of individuality and human achievement. The theme is the opposite of the Foundation stories, where the central planners and manipulators of humanity always dominate.

The book depicts the arrival of members of an alien species called the Fithp that have traveled to the Solar System from Alpha Centauri in a large spacecraft driven by a Bussard ramjet. Their intent is conquest of the planet Earth.

"Virus hunter" Christopher Dicken is a man on a mission, following a trail of rumors, government cover-ups, and dead bodies around the globe in search of a mysterious disease that strikes only pregnant women and invariably results in miscarriage. But when Dicken finds what he's looking for, the answer proves to be stranger--and far deadlier--than he ever could have imagined. Something that has slept in human DNA for millions of years is waking up.Molecular biologist Kaye Lang has spent her career tracing ancient retroviruses in the human genome. She believes these microscopic fossils can come to life again. But when Dicken's discovery becomes public, Lang's theory suddenly turns to chilling fact. As the outbreak of this terrifying disease threatens to become a deadly epidemic, Dicken and Lang must race against time to assemble the pieces of a puzzle only they are equipped to solve--an evolutionary puzzle that will determine the future of the human race . . . if a future exists at all.

In a world where the human population has suffered devastating losses, a handful of survivors cling to what passes for life in a post-apocalyptic, dying landscape. People wander, drugged and lulled by electronic bliss, through a barren landscape with no children, no art, where reading is forbidden. From this bleak existence, a tragic love triangle springs forth. Spofforth, the most perfect machine ever created, runs the world, but his only wish is to die. Paul and Mary Lou are a man and a woman whose passion for each other sparks a jealousy in Spofforth—and provides the only hope for the future of human beings on earth.

From the shrouding fogs of its Mist Country to the lunatic tropical fertility of its jungles, the planet Belzagor was alien in the extreme. Before the decolonization movement, it had been part of Earth's Galaxy-wide empire. But the Nildoror and Sulido-ror, Belzagor's two intelligent species, had been given their independence, and once again they ruled themselves. Edmund Gundersen, a former colonial official from Earth, was returning to Belzagor after an eight year absence. Officially, he was a tourist, but in reality he was seeking redemption—redemption for the crimes he had committed against the Nildoror and Sulidoror. Even now, he still found it hard to accept their independence. The Nildoror were great elephant-like beings; and the Sulidoror, husky bipeds covered with dark red hair, had long arms tipped with terrifying claws. How could such creatures, without any technology to speak of, run an entire planet? Yet they did, and they had one thing that had always eluded human understanding—the ceremony of rebirth. Somehow this mysterious rite linked the two species, and the act that weighed most heavily on Gundersen's mind had occurred in connection with it. During an emergency, he had commandeered a group of Nildoror for a labor detail. Using a fusion torch, he had forced them to obey, and on his account they had missed their rebirth. To atone for this deed, Gundersen had decided to journey alone through Belzagor's jungles. When he reached the Mist Country, he would offer himself as a candidate for rebirth—even if it would mean the end of his life as a human!

The Andromeda Strain is a 1969 techno-thriller novel by Michael Crichton, his first novel under his own name and his sixth novel overall. It is written as a report documenting the efforts of a team of scientists investigating the outbreak of a deadly extraterrestrial microorganism in New Mexico. The Andromeda Strain appeared in the New York Times Best Seller list, establishing Michael Crichton as a genre writer. ---------- This work also contained in: - [The Andromeda Strain / Terminal Man](https://openlibrary.org/works/OL46874W) - [The Great Train Robbery / The Andromeda Strain](https://openlibrary.org/works/OL24159635W) - [Rising Sun / The Andromeda Strain / Binary](https://openlibrary.org/works/OL23658811W)

It was Avluela the Flier's scarlet and ebony wings that led the Watcher to the seven hills of the ancient city, leaving the skies and deep space unguarded. And so the invaders came and conquered and Avluela became lost in the turmoil.

Les Entités ont envahi la Terre et réduit l'humanité à l'esclavage ... Tel est le thème de ce roman inédit d'un des maîtres de la science-fiction.

Earth: expensive, elite graveyard to the galaxy. Ravaged 10,000 years earlier by war, Earth was reclaimed by its space-dwelling offspring as a planet of landscaping and tombstones. None of them fully human, Fletcher, Cynthia, and Elmer journey through this dead world, discovering human traits and undertaking a quest to rebuild a human world on Earth.

1972 Locus Poll Award nominee, best SF novel IN THE BEGINNING... there was no Brooklyn, no St. Louis, no Shakespeare, no moon, no hunger, no death... IN THE BEGINNING... there were no real men, no real women, nothing but dispassionately passionate ambisexuals of the lowest and highest order... IN THE BEGINNING... the heavens, the seas and the Earth belonged to more intelligent species than a man called Clay could ever have dreamed possible in his own time. But his own time as a man had passed, and now his time as the son of man had come! Clay is a man from the 20th Century who is somehow caught up in a time-flux and transported into a distant future. The earth and the life on it have changed beyond recognition. Even the human race has evolved into many different forms, now coexisting on the planet. The seemingly omnipotent Skimmers, the tyrannosaur-like Eaters, the sedentary Awaiters, the squid-like Breathers, the Interceders, the Destroyers—all of these are "Sons of Man". Befriended and besexed by the Skimmers, Clay goes on a journey which takes him around the future earth and into the depths of his own soul. He is human, but what does that mean?

Vesuvio is the golden Voyager, destined to journey through every cavern of depravity in the ancient world. It is a time when Rome was at its most decadent and throbbing with the muscle of slavery, the First Century A.D., an age of sensual adventure and unbridled sexuality. Pagan Voyager, the second part of the Voyager trilogy and sizzling sequel to Golden Voyager, follows Vesuvio, the virile young aristocrat, as he searches for his slave-girl lover, Miranda, in a bloody adventure of wild sensuality. Vesuvio follows Miranda across the Mediterranean to the Egyptian city of Alexandria where he falls into the clutches of the robber Charon. Subject to humiliating physical and mental depravities, Vesuvio is sold to a Jewish merchant in the ancient city of Antioch where he becomes the merchant's charioteer. Only with victory in a death-defying race can Vesuvio return to Rome, where he is forced to serve in the Villa Orgiasta, a notorious pleasure house. When he finally finds Miranda Vesuvio must plot her safe return to Italy, as well as finding a way to regain his own freedom. Rich in historical background and pulsing with unchained passions and erotic conquest, Pagan Voyager is a compelling adventure of forbidden love and cruel sacrifice amid the majesty and power of Rome for anyone who has enjoyed movies such as Spartacus or Gladiator