Erupting from teleport flares or speeding into battle aboard armoured transports, the Grey Knights strike with overwhelming force.  Each of them is a warrior mystic whose martial prowess is matched by his psychic and sorcerous might.  Clad in warded plate of truesilver and adamantine, armed with crackling Nemesis force weapons and devastating psy-active firearms, they are ruthless destroyers all.  It can be no other way, for this Chapter wages a war in utmost secrecy against the Dark Gods of Chaos to prevent the death of reality itself.  From worlds engulfed by nightmare Warp rifts to hives swarming with heretic cultists, forbidden vaults of infernal secrets to desolate battlefields where alien explorers threaten to unleash terrible powers, the Grey Knights fight wherever and whoever they must.  No weapon is forbidden to these sacred warriors, and no price is too high for victory, for the alternative is cataclysm on a apocalyptic scale.

Inside you will find:

• Classified intelligence on the history, duties and strategies of the Grey Knights, their hidden fortress monastery on the moon of Titan, and the many strange and terrible wars they have fought.
• All the rules you will need to assemble your collection of Grey Knights Citadel miniatures into an elite tabletop army ready to engage in Combat Patrol, Crusade or matched play games of Warhammer 40,000.
• A striking showcase of expertly painted Citadel miniatures that displays the Grey Knights in all their sanctified panpoly and a step-by-step guide to get your collection Battle Ready and into action on the tabletop battlefield.