Ch. 1885Gene-Detecting Nerve
The chapter explained how Space Marines’ Gene-Detecting Nerves absorbed memories and abilities from consumed flesh, then described how the Blood Drinkers and Flesh Tearers used mutated versions of the organ. It ended by noting that the nerve’s power depended on how its users applied it.
- Space Marines used their Gene-Detecting Nerves to learn creatures’ instincts and survival skills by eating their flesh.
- The Blood Drinkers suppressed the Black Rage by secretly drinking human blood, leaving dried corpses behind after their defense of Castobel.
- The Flesh Tearers prolonged their sanity by consuming corpses and gained skills by eating, while their battlefields were left with bloodstains and tufts of meat.
- The chapter concluded that Space Marines’ implants were powerful inventions whose uses varied among Chapters.