When a massive Warp Storm erupted in the Kaurava System, located in the Ultima Segmentum, it plunged the entire system into chaos and warfare. Upon the moon of Lacunae, which orbits the world of Kaurava IV, a large Dark Eldar raider force emerged from the shadows of an Ancient Webway Gate, looking for souls and new bounty. This Dark Eldar force was made up of the notorious Kabal of the Black Heart, led by Archon Tahril as their leader. The Kabal of the Black Heart was the single largest and most powerful Kabal in Commorragh, and because of this, they were the dominating power in that hidden city of the Dark Eldar. The Dark Eldar forces quickly slaughtered the Imperial population on the moon of Lacunae and seized control of the Ancient Webway Gate. Using the moon as their base of operations