Alternate history and What ifs
Explore captivating alternate history books and thrilling 'what if' scenarios. Dive into reimagined worlds where key events unfolded differently, featuring top picks for history buffs and fiction lovers alike.

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Lest Darkness Fall
by Lyon Sprague De Camp
In "Lest Darkness Fall," twentieth-century academic Martin Padway travels through time to prevent the fall of the Roman Empire, while in "To Bring the Light," Herosilla must forge the birth of Roman civilization.

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The Man in the High Castle
by Philip K. Dick
It's America in 1962. Slavery is legal once again. the few Jews who still survive hide under assumed names. In San Francisco the I Ching is as common as the Yellow Pages. All because some 20 years earlier the United States lost a war--and is now occupied jointly by Nazi Germany and Japan. This harrowing, Hugo Award-winning novel is the work that established Philip K. Dick as an innovator in science fiction while breaking the barrier between science fiction and the serious novel of ideas. In it Dick offers a haunting vision of history as a nightmare from which it may just be possible to awake.

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The Time Patrol
by Poul Anderson
The complete anthology of the author's time-travel saga includes all of the previous stories as well as a new novel

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The Complete Paratime
by H. Beam Piper
From H. Beam Piper, the creator of the Terrohuman Future History and the bestselling Fuzzy novels, come the parallel worlds of Paratime—collected for the first time in one volume. Infinite worlds allowed for infinite evil—unless the doorway to those worlds was most carefully guarded. The Paratime Police are an elite force of men and women charged with defending a million unsuspecting Earths from their more developed—and more ruthless—neighbors in parallel continua. From the original Paratime, which introduced the unceasing struggles of the time-traveling heroes, to Lord Kalvan of Otherwhen, the last Paratime story of a state trooper’s conquest of an alternate Earth...The Complete Paratime is a grand science fiction experience.
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The Gods Themselves
by Isaac Asimov
In the twenty-second century Earth obtains limitless, free energy from a source science little understands: an exchange between Earth and a parallel universe, using a process devised by the aliens. But even free energy has a price. The transference process itself will eventually lead to the destruction of the Earth's Sun—and of Earth itself. Only a few know the terrifying truth—an outcast Earth scientist, a rebellious alien inhabitant of a dying planet, a lunar-born human intuitionist who senses the imminent annihilation of the Sun. They know the truth—but who will listen? They have foreseen the cost of abundant energy—but who will believe? These few beings, human and alien, hold the key to Earth's survival.
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The Fall of the Kings
by Ellen Kushner
Award-winning fantasy authors Kushner and Sherman team up to tell a tale of a world rediscovering an ancient magic, and the price to be paid for repeating history.

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Sailing to Sarantium
by Guy Gavriel Kay
Crispin is a mosaicist, a layer of bright tiles. Still grieving for the family he lost to the plaque, he lives only for his arcane craft. But an imperial summons from Valerius the Trakesian to Sarantium, the most magnificent place in the world, is difficult to resist. In a world half-wild and tangled with magic, a journey to Sarantium means a walk into destiny. Bearing with him a deadly secret and a Queen's seductive promise, guarded only by his own wits and a talisman from an alchemist's treasury, Crispin sets out for the fabled city. Along the way he will encounter a great beast from the mythic past,and in robbing the zubir of its prize he wins a woman's devotion and a man's loyalty--and loses a gift he didn't know he had until it was gone. Once in this city ruled by intrigue and violence, he must find his own source of power. Struggling to deal with the dangers and seductive lures of the men and woman around him, Crispin does discover it, in a most unusual place--high on the scaffolding of the greatest artwork ever imagined....

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Lord of Emperors
by Guy Gavriel Kay
Crispin the mosaicist finally achieves his goal of journeying to the fabled Sarantium, but is drawn into the deadly webs of the court and the city.

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Ilario: The Lion's Eye
by Mary Gentle
Abandoned and alone, the fosterling Ilario grows up as the King's Freak, surrounded by all the pomp, intrigue, and danger of the Iberian court. Fleeing a failed treacherous attack, Ilario crosses the sea to Carthage, where the mysterious Penitence shrouds the sky in darkness. There, a strange and awful destiny awaits the would-be painter, one that spans continents and kingdoms. Filled with intrigue, sex, and mystery, Ilario: The Lion's Eye is a stunning tale of secret histories and self-discovery. The adventure continues in Book Two: The Stone Golem.

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Ash
by Mary Gentle
A magnificent and gritty dream of the 15th century, a stupendous canvas soaked in blood, magic and tears. Shortlisted for the 2001 Arthur C. Clarke Award and winner of the British SF Association's Award for Best Novel.

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Hominids
by Robert J. Sawyer
In a parallel world in which Neanderthals, rather than homo sapiens, became the dominant intelligent species, a dangerous scientific experiment traps a Neanderthal physicist on Earth.

