The Horus Heresy is a conflict of unparalleled destruction, spread across myriad vital campaigns. Embroiled for years in a grinding war of nearly unfathomable scope, the Garmon Cluster now acts as the final break against which the tides of the Warmaster’s forces must crash. Its capital, the Beta-Garmon system, is a burning pyre of armies, where Loyalist forces – led by the Great Angel Sanguinius, the Warhawk Jaghatai Khan, and the remnants of the Shattered Legions – fight to buy precious time before the assault on Terra can begin in earnest.

This expansion book for Warhammer: