Various inter-galactic superpowers gather on late 21st century Earth to bid on the universe's greatest and most dangerous weapon: the body of the Doctor
Tropes present in Alien Bodies include:
- Auction of Evil: The premise behind the book. Various powers are represented in the auction, including Gallifrey and the Time Lords, Faction Paradox, the Celestis, the enemy, and the Krotons.
- Captain Ersatz: Qixotl is Drax from The Armageddon Factor. However editor Stephen Cole made Lawrence Miles eliminate any direct reference (probably so they wouldn't have to pay the serial's author).
- Fate Worse than Death: See Grandfather Paradox.
- Grandfather Paradox: A Faction Paradox agent, Cousin Sanjira, is punished for letting the Relic slip through his fingers by being forced to murder himself as an eight year old, causing his whole timeline to unravel into a state of perfect paradox.
- Insignificant Little Blue Planet: How all the other bidders view Earth and humans, and how Bregman comes to see them after being attacked by vault security.
- Make Way For The New Villains: The Kroton commander makes his entrance in a Dalek ship, having killed and eaten the original owners.
- Mind Rape: The security protocols guarding the Relic scan Lieutenant Bregman's mind and biodata and use her insecurities and self-hatred to torture her.
- Readers Are Geniuses: Trask's identity wasn't really meant to be a mystery. Most of the readers didn't recognize him as the main villain from The Highlanders because they'd never seen the serial.
- Retroactive Continuity: The epilogue at the Doctor's grave has been overwritten canonically as of The Name of the Doctor. Or has it?
- Took a Level in Badass: The Krotons. Far from the Villains they were in The Krotons, here they are a vast intelligence out for multiple-worlds' domination.
- Wave of Babies: The security system attacks Sam with a wave of baby versions of herself.