by John Scalzi
First published 2005
On his 75th birthday, John Perry signs up for the Colonial Defense Force, trading his old body for a young, enhanced one. Humanity has expanded into space, but inhabitable planets are scarce. Rival alien species will stop at nothing to claim them first. As John trains for the front lines, he realizes the true cost - he'll never return to Earth, and the combat awaiting him is brutal beyond imagination. But with the promise of a homestead on a colony world, John presses on, determined to defend his home planet at all costs.
Genres: science-fiction, military-fiction, adventure, action
Vibes: fast-paced, suspenseful, thought-provoking
Tropes: fish-out-of-water, found-family
Setting: Outer Space
Period: The Far Future
316 pages · Hardcover · Tor Books
Content warnings: violence, war