Fritz Leiber (1910–1992) may be best known as a fantasy writer, but he published widely and successfully in the horror and science fiction fields. One of his major SF creations is the Change War, a series of stories and short novels about rival time-traveling forces locked in a bitter, ages-long struggle for control of the human universe where battles alter history and then change it again until there is no certainty about what might once have happened....

The third novel in Terry Pratchett and Stephen Baxter's "Long Earth" series, which Io9 calls "a brilliant science fiction collaboration."2040-2045: In the years after the cataclysmic Yellowstone eruption there is massive economic dislocation as populations flee Datum Earth to myriad Long Earth worlds. Sally, Joshua, and Lobsang are all involved in this perilous rescue work when, out of the blue, Sally is contacted by her long-vanished father and inventor...

"With no water, no air, and no native life, the planet Gora is unremarkable. The only thing it has going for it is a chance proximity to more popular worlds, making it a decent stopover for ships traveling between the wormholes that keep the Galactic Commons connected. If deep space is a highway, Gora is just your average truck stop. At the Five-Hop One-Stop, long-haul spacers can stretch their legs (if they have legs, that is), and get fuel, transit...

In this revised collection of classic Wild Cards stories, the spotlight is on the most unusual Wild Cards of them all--the Deuces, or people with minor superpowers. But their impact on the world should not be underestimated, as they've affected the course of Wild Cards' alternate history.tory.

A computer programmer is drawn into a computer game and must defend himself against lasers and deadly discs.

Following a devastating nuclear war, the Moral Reclamation government took over the world and forced its citizens to live by strictly puritanical rules-no premarital sex, drunkenness, or displaying of neon signs-all of which are reinforced through a constant barrage of messaging to the public. The chief purveyor of these messages is Alan Purcell, next in line to become head of the propaganda bureau. But there is just one problem: a statue of the government's...

Seventeen-year-old Ari Alexander is recruited by arrogant alien spy Jackson Locke to help him save the Earth because Ari is a military legacy who's been trained by her father and exposed to war strategies and societal information no one can know -- especially an alien spy like Jackson. Giving Jackson the information he needs will betray her father and her country, but keeping silent will start a war.

"The world of Zen City is a world of passionate desires: the desire for power, the desire for order, and the desire for self-transcendence. Zen Ctiy is a story about the struggle and violence of people who see themselves as striving for the ultimate. Along the way, Zen City presents a sly critique of the practice and perversions of imported spirituality in twentieth-century America"--Page 4 of cover.

"Dirty Computer introduced a world in which thoughts--as a means of self-conception--could be controlled or erased by a select few. And whether human, A.I., or other, your life and sentience was dictated by those who'd convinced themselves they had the right to decide your fate. That was until Jane 57821 decided to remember and break free. Expanding from that mythos, these stories fully explore what it's like to live in such a totalitarian existence--and...

This "thought-provoking and . . . unabashedly entertaining . . . novel defies conventional expectations and exists, brilliantly and defiantly, on its own terms" (Sarah Lotz, New York Times Book Review). Lake Geneva, 1816. Nineteen-year-old Mary Shelley is inspired to write a story about a scientist who creates a new life-form. In Brexit Britain, a young transgender doctor called Ry is falling in love with Victor Stein, a celebrated professor leading...