In rural Wisconsin, wonder clashes dangerously with corporate greed when an alien visitor opens up a gateway through time into a breathtaking prehistoric lost world. On sabbatical from teaching at a small university, paleontologist Asa Steele is content to relax amid the pastoral splendor of his Wisconsin farm. That is until his dog starts bringing home unrecognizable artifacts and, strangest of all, fresh dinosaur bones.

Gundersen returns to Holman’s World seeking atonement for his harsh years as colonial governor. But now this lush, exotic planet of mystery is called by its ancient name of Belzagor, and it belongs once again to its native alien races, the nildoror and the sulidoror. Drawn by its spell, Gundersen begins a harrowing pilgrimage to its mist-shrouded north to witness a strange ritual rebirth that will alter him forever.

Their hotel was beautifully situated, high on the northern slope of the huge artificial mound known as the paneium that was sacred to the goat-footed god. From here they had a total view of the city: the wide noble boulevards, the soaring obelisks and monuments, the palace of Hadrian just below the hill, the stately and awesome Library, the temple of Poseidon, the teeming marketplace, the royal lodge that Mark Antony had built after his defeat at Actium.

Hank is walking home from the bar when the Model T pulls alongside him. It's been decades since he saw a car this old, and the sound of it takes him right back to his 20s. The door is open, and when he climbs in, the car takes off - without a driver. Before he knows what's happened, Hank is right back at Big Spring Pavilion, where he spent his youth drinking bootleg whiskey and chasing pretty girls. He will find the past is not quite as he remembered it, but still a lovely place to go for a drive.

Nickie Haflinger had lived several lifetimes...but technically never existed. He was originally a fugitive from Tarnover, the incredibly powerful government think tank that educated him. First he had broken his identity code - then he made his escape. Now he needed to find a way to restore sanity and freedom to the computerized masses and save a world nearing the brink of disaster. He didn’t care how he accomplished this - but the government did. That’s when his Tarnover teachers took him back into their labs, where Nickie Haflinger was set up to receive a whole new education.

Glen Runciter runs a lucrative business - deploying his teams of anti-psychics to corporate clients who want privacy and security from psychic spies. But when he and his top team are ambushed by a rival, he is gravely injured and placed in "half-life," a dreamlike state of suspended animation. Soon, though, the surviving members of the team begin experiencing some strange phenomena, such as Runciter's face appearing on coins and the world seeming to move backward in time.

Prescient and scientifically accurate, Heart of the Comet is known as one of the great hard SF novels of the 1980s. First published in 1986, it tells the story of an ambitious manned mission to visit Halley's Comet, alter its orbit, and mine it for resources. But all too soon, native cells - that might once have brought life to Earth - begin colonizing the colonists. As factions battle over the comet's future - and that of Earth - only love, courage, and ingenuity can avert disaster and spark a new human destiny.

In what is considered one of Heinlein's most hair-raising, thought-provoking, and outrageous adventures, the master of modern science fiction tells the strange story of an even stranger world. It is 21st-century Luna, a harsh penal colony where a revolt is plotted between a bashful computer and a ragtag collection of maverick humans, a revolt that goes beautifully until the inevitable happens. But that's the problem with the inevitable: it always happens.

Welcome to Ringworld, an intermediate step between Dyson Spheres and planets. The gravitational force created by a rotation on its axis of 770 miles per second means no need for a roof. Walls 1,000 miles high at each rim will let in the sun and prevent much air from escaping. Larry Niven's novel, Ringworld, is the winner of the 1970 Hugo Award for Best Novel, the 1970 Nebula Award for Best Novel, and the 1972 Ditmars, an Australian award for Best International Science Fiction.

He was just a freckle-faced, red-headed kid with green eyes and a strangely campelling stare when Mather Mastiff first saw him an the auctioneer's block. One hundred credits and he was hers. For years the old woman was his only family. She loved him, fed him, taught him everything she knew - even let him keep the deadly flying snake he called Pip.Then Mother Mastiff mysteriously disappeared and Flinx took Pip to tail her kidnappers.

Stoner knew. The fiery object hurtling toward the Earth was an alien spacecraft. But the world might never know. He was trapped in an iron cordon of secrecy, for the discovery had shattered the world power balance, setting off a brutal struggle for supremacy that raged from the sacred halls of the Vatican to the corridors of the Kremlin and the Pentagon. The forces of fear and treachery would use any weapon at their command, from mind war to sabotage, to keep the world in darkness.

To the forest on the shore of the Kingdom of the Isles, the orphan Pug came to study with the master magician Kulgan. But though his courage won him a place at court and the heart of a lovely princess, he was ill at ease with the normal ways of wizardry. Yet Pug's strange sort of magic would one day change forever the fates of two worlds. For dark beings from another world had opened a rift in the fabric of spacetime to being again the age-old battle between the forces of Order and Chaos.

When Thomas wakes up in the lift, the only thing he can remember is his name. He's surrounded by strangers - boys whose memories are also gone. Outside the towering stone walls that surround them is a limitless, ever-changing maze. It's the only way out - and no one's ever made it through alive. Then a girl arrives. The first girl ever. And the message she delivers is terrifying: Remember. Survive. Run.

For thousands of years, Carter Horton has been traveling across the galaxy toward a distant world capable of supporting human life. At journey's end, awakened from his millennia-long sleep by a curiously adaptive android, he is informed that his crewmates have all perished due to a system malfunction. But worse is yet to come: Horton's sentient ship is refusing to return him to Earth, and a strangely cordial predator is waiting for him on the planet's surface.

Perhaps it wasn't from our time, perhaps it wasn't even from our universe, but the arrival of the 300-kilometer long stone was the answer to humanity's desperate plea to end the threat of nuclear war. Inside the deep recesses of the stone lies Thistledown: the remnants of a human society, versed in English, Russian and Chinese. The artifacts of this familiar people foretell a great Death caused by the ravages of war, but the government and scientists are unable to decide how to use this knowledge.