
A technician in a time-altering organisation makes unauthorised changes to history to save a woman he loves, threatening the existence of eternity itself.
Explore books like this on the map
A pump that trades matter with a parallel universe gives Earth free energy, and in three linked stories, a disgraced scientist, a lunar researcher and the beings of the other universe discover what it may cost.

A British civil servant is hired by a secretive new ministry to live with Commander Graham Gore, a Victorian naval officer brought into the present from the doomed Franklin expedition, and as she teaches him modern life, they fall for each other while the project turns dangerous.

As the Galactic Empire decays, mathematician Hari Seldon plants a colony of scholars on a remote planet to shorten the coming dark age, and his successors survive crisis after crisis his equations foresaw.

Nine stories that use science fiction premises to explore free will, time, language, and the nature of consciousness with philosophical precision.

In 1998, with the world dying of ecological collapse, Cambridge scientists try to warn the past using tachyons, and in 1962 a young physicist in California picks up the strange noise in his experiment and tries to make sense of it.

A glitch in time links an exiled Englishman in a 1912 British Columbia forest to a moon-colony novelist on a pandemic book tour, and an investigator from the future goes back to learn whether reality is a simulation.

In the Place, a rest station outside time for soldiers of the Change War, the hostess Greta Forzane tells of the night the station was cut off and someone brought in an atomic bomb.

A New York detective chasing an outbreak of false memories crosses paths with the neuroscientist whose machine for preserving memory has started letting people rewrite their pasts, and the timeline with them.

A late-Victorian inventor travels eight hundred thousand years into a future where humanity has split into two species, and then continues to the cold red beach at the end of the world.

Ned Henry, an Oxford time traveller suffering from time-lag after too many jumps hunting a Victorian vase called the bishop's bird stump, is sent to recover in 1888, in a rowing boat on the Thames.

A modern man is sent back in time to Pleistocene Africa, where he must live among early hominids and question what it means to be human.

A young woman in near-future rural America takes a gig testing what she thinks is a video game and witnesses a murder in a London seventy years ahead.