This is the codex for the 5th edition rules of Warhammer 40,000. The Grey Knights are the most mysterious of all the Imperium's many organizations. 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 armored with the finest wargear Mankind can supply, for no others in the Emperor's service have so dire a task as they. This 96-page Warhammer 40,000 Codex contains all the rules you need to field a Grey Knights army, as well as detailed background information, unit descriptions, accompanying artwork and miniatures showcase. You will need a copy of the Warhammer 40,000 rulebook to use the contents of this book.