The Primarchs is the twentieth volume in the Horus Heresy series of novels. It was released on May 29, 2012 and became the seventh Horus Heresy book to appear on The New York Times list of bestsellers. The Primarchs contains four novella length stories.
Created in the Emperor's own image, the Primarchs had long thought themselves to be princes of the universe and masters of their own destiny - they led the Space Marine Legions in glorious conquest of the galaxy, and no enemy of the Imperium could stand against them. However, even amongst this legendary brotherhood, the seeds of dissent had been sown long before the treacherous Warmaster Horus declared his grand heresy. Find out the deepest mysteries of the Primarchs. Who is in control of Fulgrim's body - him, or a daemon? What happens when the Alpha Legion fights against itself? Just what secrets is the Lion keeping? And what could the tragic Ferrus Manus have done to prevent himself from becoming a head shorter?
The Primarchs contains the following novellas:
- The Reflection Crack'd (Novella) by Graham McNeill
- Feat of Iron (Novella) by Nick Kyme
- The Lion (Novella) by Gav Thorpe
- The Serpent Beneath (Novella) by Rob Sanders
- The Primarchs (Anthology) edited by Christian Dunn