Six days ago, he became the first person to walk on Mars. Now he’s sure he’ll be the first person to die there.

Chances are, though, he won’t starve to death. The damaged machinery, unforgiving environment, or plain-old “human error” are much more likely to kill him first.

A portal through time forces a fabric seller in ancient Baghdad to grapple with past mistakes and second chance.

The ability to glimpse into alternate universes brings about a reexamination of the concepts of choice and free will.

What if men built a tower from Earth to Heaven, and broke through to Heaven's other side?

What if we discovered that the fundamentals of mathematics were arbitrary and inconsistent?

What if exposure to an alien language forever changed our perception of time?

Follow a motley crew on an exciting journey through space, and one adventurous young explorer who discovers the meaning of family in the far reaches of the universe.

A lost spaceship has been found, along with the bodies of its murdered crew, save one.

The missing crew member has fled through what appears to be a tear in the fabric of space. Beyond this mysterious doorway lies a confounding reality: a world that seems to be Earth’s twin.

A dystopian society where the child-bearing women are rounded up and forced to produce children for barren wives.

They are allowed out once a day to the food market, not permitted to read, and are only valued if their ovaries are viable.

JMG is a Player of Games, master of every board, computer and strategy.

Bored with success, he travels to the Empire of Azad, to try their fabulous game, a game so complex, so like life itself, that the winner becomes emperor.

Hailsham seems like a pleasant English boarding school, far from the city. Curiously, students are allowed little contact with the outside world.

It's only when they leave the safe grounds of the school that they realize the full truth of what Hailsham is.

MS was a legendary computer game designer.

When his obituary is posted online, a previously dormant daemon activates, initiating a chain of events intended to take down everything that runs on technology: cars, homes, airplanes, and even the entire world economy.

Six hundred worlds, connected by a web of wormholes.

Over one thousand light-years away, a star … vanishes. Something truly incredible is waiting: a deadly discovery whose unleashing will threaten to destroy humanity itself.

The moon has collapsed, rendering the earth a ticking time bomb.

Nations around the globe band together to devise an ambitious plan to ensure the survival of humanity far beyond our atmosphere, in outer space.

When WNR flies his spaceship into an infundibulum he is converted into pure energy and becomes omniscient.

His wife is going to Mars to mate with the richest man in the world, and on Titan is an alien who has been waiting 200,000 years for a spare part.

Swordplay, cut-throat politics, and lesbian necromancers.

The Emperor invites the heirs to each of his loyal Houses to a deadly trial of wits and skill.

Firemen find a lost little girl: in the palm of a giant metal hand.

Seventeen years later, the mystery of the bizarre artifact remains unsolved.

Some can never stop searching for answers.

NYC cop investigates a devastating phenomenon the media has dubbed False Memory Syndrome – a mysterious affliction that drives its victims mad with memories of a life they never lived.

He's the sole survivor on a desperate mission; if he fails, humanity and the earth itself will perish.

His crewmates dead, his memories fuzzily returning, it's up to him to solve a scientific mystery and conquer an existential threat to our species.

The world has devolved largely into private, mostly autonomous city-states with a bureaucratic remnant of the US government.

Hackers dive into the Metaverse and run into a new virus which threatens both the virtual and real worlds.

A secret military project sends signals into space to establish contact with aliens. An alien civilization on the brink of destruction captures the signal and plans to invade Earth.

Earth is divided: welcome the superior beings, or fight?

He knows the rules. EH will die every day until he can identify her killer and break the cycle.

Every time the day begins again, he wakes up in the body of a different guest at the manor. And some of his hosts are more helpful than others.

Britain, the not-too-distant future. The British Citizenship Test.

Twenty-five questions to determine your fate. Twenty-five chances to impress.

How do you value a life when all you have is multiple choice?

How to Train Your Dragon but instead it's a girl who finds a spaceship and goes to Top Gun school.

Like a mashup between Top Gun and Ender's Game with an old broken-down spaceship with a really weird personality.

Portals exist, and every distant planet is a step away from any other.

A crashed alien spaceship is found with human victims aboard. A rescue team is dispatched, but there's an alien spy on it…

Murder mystery set in space.

Three astronauts in a tiny module, a quarter of a million miles from home. A quarter of a million miles from help.