Sound the warhorns and strike primal terror into the hearts of mortal men with the towering mockeries of honour and chivalry known as the Chaos Knights – enormous combat walkers turned to the worship of Chaos by their duplicitous pilots. Codex: Chaos Knights contains brand new rules and detachments for your army – including the new Knight Ruinator variant – along with extensive background lore about their turncoat houses and loads of gorgeous miniature photography.