Altansar was one of the many Craftworlds, large and small, that survived the Fall of the Eldar following the birth of the Chaos God Slaanesh. It rode out the initial psychic shockwaves that destroyed the Eldar realms but was subsequently caught in the gravity well of the Eye of Terror. Although the Eldar of Altansar fought valiantly against the encroachment of Chaos, they were unable to escape their inevitable doom. Within five hundred Terran years of the Fall their Craftworld was swallowed whole into the Warp. The only soul that escaped the clutches of this roiling Warp Storm was the Phoenix Lord known as Maugan Ra, the Harvester of Souls -- the mightiest of Altansar's Exarchs and founder of the Warrior Aspect of the Dark Reapers.