Tsagualsa

Tsagualsa (also referred to as The 'Carrion World') was a world located on the Eastern Fringe that Primarch Konrad Curze, of the Night Lords Traitor Legion, chose as his base of operations following the destruction of his homeworld of Nostramo.

Background
During the Horus Heresy, two years after the events of the Drop Site Massacre of Istvaan V the Night Lords and Dark Angels Legions are locked in a bitter struggle over the fate of the Thramas Sector. Neither side was able to break the stalemate, so in an audacious attempt to bring change to the situation, the Night Haunter invites Lion El'Jonson to a parley on the barren world of Tsagualsa. Night Haunter wants to attempt to break his former Brother-Primarch either mentally, physically or both to obtain his objectives. The Primarchs are accompanied by two warriors each from their personal Honour Guard to the parley. Initially, it started off amicably between the two Primarchs as they conversed with relative civility towards one another. Until the Night Haunter slandered El'Jonson, and in return the Lion struck his former brother 'dishonourably'. This eventually degenerated into an all-out brawl between the two opposing sides. As the Night Haunter strangled the life out of El'Jonson, one of the Dark Angels Primarch's Honour Guard ran his sword through the Night Haunter's back, saving his Primarch's life. Eventually both Legions sent reinforcements in response to this incident. Each side dragged away their respective Primarchs from one another. Both Primarchs survived this brutal confrontation and went on to continue fighting throughout the Thramas Sector.

Following his long absence during the Great Crusade, the Night Haunter's homeworld of Nostramo had degenerated into anarchy and corruption. Judging his planet guilty, he then brought one of his horrific premonitions to brutal reality. He ordered the orbiting Night Lords fleet to destroy the dark world utterly with orbital fire from his fleet; punishment for his world for reverting back to its criminal ways. After the destruction of Nostramo, the Night Haunter chose the world of Tsagualsa as his new base of operations. He then had a grotesque palace built; an edifice constructed entirely from still-living bodies. Within his palace of flesh and bone he had a morbid carpet made of living faces that eternally screamed, which led past a pool of deepest shadow to the Night Haunter's throne room where he sat upon a throne made of fused human bones of his victims. This corridor was known as the Screaming Gallery. The Captains of the Night Lords would often join their Primarch within these dark chambers.