Edict of Nikaea
The Emperor's decree banning the use of psychic powers among the Legiones Astartes.
Historical Documents
Military dispatches from the Iron Hands' defense against Abaddon.
The Records of the Tenth Black Crusade document the massive assault launched by Abaddon the Despoiler against the sectors surrounding the Eye of Terror. The Iron Hands Chapter bore the brunt of the fighting, with Clan Companies deployed across multiple worlds to stem the tide of Chaos.
These military dispatches record both the tactical brilliance and the terrible cost of holding the line against the combined forces of the Traitor Legions.
After reading this, you'll understand: