Warhammer 40,000 Codex

The Grey Knights are the most mysterious of all the Imperium's many organisations. Few outside the upper echelons of the Inquisition hold any knowledge of the Chapter's founding, and even these most trusted of men are denied the full truth. For ten thousand years the Grey Knights have stood between the Imperium and the Daemons of the Warp. An incorruptible army of genetically engineered warriors, they are armed and armoured with the finest wargear Mankind can supply, for no others in the Emperor's service have so dire a task as they.