
When aliens invade Earth on Columbus Day, Joe Bishop, a young army specialist, is sent to fight on alien worlds and ends up teamed with Skippy, an ancient, arrogant AI in something like a beer can.
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Andrew Grayson escapes the welfare tenements of a crowded future North America the only way he can, by enlisting, and is sent to fight rioters at home and something far worse in space.

Spensa, a girl on the planet Detritus whose father was branded a coward, wants nothing more than to be a pilot fighting the alien Krell, and finds a broken ship with an AI in a cave.

On his seventy-fifth birthday, John Perry joins the Colonial Defense Forces, which give him a young, enhanced body in exchange for leaving Earth for ever and fighting humanity's wars across the stars.

Colonel-Commissar Ibram Gaunt leads the Tanith First and Only, the last regiment of a world destroyed on the day it was founded, through an endless galactic war.

John-117, taken from his family as a child for the secret SPARTAN-II programme, grows up into the supersoldier who will fight humanity's war against the alien Covenant.

Five years after the fall of the Empire, as Leia and Han await twins and Luke Skywalker trains alone as a Jedi, Grand Admiral Thrawn, a brilliant strategist from the Unknown Regions, takes command of what is left of the Imperial fleet.

Ensign Andrew Dahl, newly posted to the starship Intrepid, notices that junior crew who go on away missions with the senior officers die with alarming regularity.

Two hundred years into the Great Crusade to reconquer the galaxy, the Emperor withdraws and names the primarch Horus his Warmaster, and Captain Garviel Loken of the Luna Wolves watches what follows.

Colonel Carl Butler, called out of retirement, is sent to a war-torn planet to find out what happened to a powerful officer's missing son.

The morning Kady breaks up with Ezra, their illegal mining colony on Kerenza is invaded by a rival corporation, and the two escape on separate ships of a fleeing convoy, told through hacked files, messages and the logs of an unstable AI.

A socially anxious security robot hacks its own governor module and must decide whether to protect its human clients or binge-watch TV shows.

Kyr, raised on Gaea Station, the last outpost of humanity after aliens destroyed Earth, has trained all her life for vengeance, and is furious to be assigned to the nursery instead of the fight.