Dark Mirror


Diane Duane - 1993
    Humanity’s greatest dreams have become reality. Along with dozens of other sentient races, the people of Earth have formed the United Federation of Planets—a galactic civilization that governs much of the known universe for the good of all. Over the past two centuries, mankind has tamed its basest instincts, and reached the stars…But suppose it hadn’t happened that way at all? Suppose instead humanity’s darkest impulses, its most savage, animalistic desires had triumphed? Suppose that the empire mankind made out in the stars was one ruled by terror, where only those willing to brutalize their own kind and their neighbors could survive?One hundred years ago, four crewmembers of the U.S.S. Enterprise crossed the dimensional barrier and found just such an empire. A mirror image of their own universe, populated by nightmare duplicates of their shipmates. Barely able to escape with their lives, they returned thankful that the accident that brought them there could not be duplicated. Or so they thought.But now the scientists of that empire have found a doorway into our universe. Thier plan: to destroy from within, to replace one of our starships with one of theirs. Their victims: the crew of the U.S.S. Enterprise NCC 1701-D.

Tea from an Empty Cup


Pat Cadigan - 1998
    Reprint. LJ.

The Course of Empire


Eric Flint - 2003
    Humanity's only chance rests with an unusual pair of allies: a young Jao prince, newly arrived to Terra to assume his duties, and a young human woman brought up amongst the Jao occupiers.But both are under pressure from the opposing forces--a cruel Jao viceroy on one side, determined to drown all opposition in blood; a reckless human resistance on the other, perfectly prepared to shed it. Added to the mix is the fact that only by adopting some portions of human technology and using human sepoy troops can the haughty Jao hope to defeat the oncoming Ekhat attack--and then only by fighting the battle within the Sun itself.

How I Proposed to My Wife: An Alien Sex Story


John Scalzi - 2011
    Well, it’s complicated...

Diamond Dogs, Turquoise Days


Alastair Reynolds - 2003
    . . Alastair Reynolds burst onto the SF scene with the Arthur C. Clarke Award-shortlisted REVELATION SPACE, British Science Fiction Award-winning CHASM CITY, and REDEMPTION ARK. Now experience the phenomenal imagination and breathtaking vision of 'The most exciting space opera writer working today' (Locus) in these two tales of high adventure set in the same universe as his novels. The title story, 'Diamond Dogs', tells of a group of mercenaries trying to unravel the mystery of a particularly inhospitable alien tower on a distant world; 'Turquoise Days' is about Naqi, who has devoted her life to studying the alien Pattern Jugglers.

Helix


Eric Brown - 2007
    Daylight brings the discovery that the planet is one of thousands arranged in a vast spiral wound about a central sun. They set off to discover a more habitable, Earth-like world and come across strange races of aliens, and life-threatening perils, on their way.

Arcanum 101


Mercedes Lackey - 2012
    First he found himself using his new power to set fires for the local loanshark, then he was facing a choice between prison and being stuck in a reform school in the middle of nowhere. Now he's being bossed around by a (literally) hot little chica, facing off monsters, and trying not to flunk math. Oh, and not die. And it's only Tuesday.

The Devil's Alphabet


Daryl Gregory - 2009
    Then, as quickly and inexplicably as it had struck, the disease–dubbed Transcription Divergence Syndrome (TDS)–vanished, leaving behind a population divided into three new branches of humanity: giant gray-skinned argos, hairless seal-like betas, and grotesquely obese charlies.Paxton Abel Martin was fourteen when TDS struck, killing his mother, transforming his preacher father into a charlie, and changing one of his best friends, Jo Lynn, into a beta. But Pax was one of the few who didn’t change. He remained as normal as ever. At least on the outside.Having fled shortly after the pandemic, Pax now returns to Switchcreek fifteen years later, following the suicide of Jo Lynn. What he finds is a town seething with secrets, among which murder may well be numbered. But there are even darker–and far weirder–mysteries hiding below the surface that will threaten not only Pax’s future but the future of the whole human race.

Recursion


Tony Ballantyne - 2004
    Herb, a young entrepreneur, returns to the isolated planet on which he has illegally been trying to build a city-and finds it destroyed by a swarming nightmare of self-replicating machinery. Worse, the all-seeing Environment Agency has been watching him the entire time. His punishment? A nearly hopeless battle in the farthest reaches of the universe against enemy machines twice as fast, and twice as deadly, as his own-in the company of a disarmingly confident AI who may not be exactly what he claims...Little does Herb know that this war of machines was set in motion nearly two hundred years ago-by mankind itself. For it was then that a not-quite-chance encounter brought a confused young girl and a nearly omnipotent AI together in one fateful moment that may have changed the course of humanity forever.