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Targetdrone.gif This article is about the planet in Ultima Segmentum; for the civilised world, see Sarum (Civilised World).
Map Basic Data Planetary Image
Small cross.pngSarum
Name: Sarum Unknown.jpg
Segmentum: Ultima Segmentum
Sector: Golgothan Sector
System: Unknown
Population: Unknown
Affiliation: Dark Mechanicum
Class: Hell Forge

Sarum was a world of the Imperium. Now it belongs to a Dark Mechanicum. Turbulently close to the Maelstrom, the planet itself is a barren landscape which lacks a habitable atmosphere.[1]


During the Age of Strife, the world became an Adeptus Mechanicus station but soon was isolated and embattled. On its own against raiders, xenos, and abhumans and without aid from Mars, the priests of Sarum became isolationists under a cult by their ruler, Redjak. Redjak solidified his Crimson Priesthoods power, taking over much of the Golgothan Sector. However when Sarum faced a massive invasion by the Brotherhood of Ruin and their Ork allies, they plead for aid from the Imperium and finally received it in the form of the World Eaters 13th Expeditionary Fleet, led personally by Angron.[1]

In the ensuing Golgothan Slaughter, the Brotherhood of Ruin was annihilated by the World Eaters. However Angron next turned his wrath on the Crimson Priests of Sarum, scouring the planet and claiming it as his forward operating base for the next eleven years in a campaign against the Priests remaining empire.[1] Sarum pledged itself to the forces of Horus during the Horus Heresy and became a Forge World for the Dark Mechanicum.[2a][3] During the Heresy, Sarum continued to supply the World Eaters with their armaments.[4]

Towards the later stages of the Heresy, Perturabo himself arrived at Sarum in search of information of where to find Angron. He found the planet corrupted beyond measure, with a solid crust of debris in orbit acting as a type of outer shell. On Sarum, the Priests had become slaves to Chaos, their heads replaced with the skulls of various creatures. At the center of Sarum was a bound Daemon of Khorne known as Sa'ra'am, which revealed that Angron was on the world of Deluge. Sar'ra'am eventually possessed the Iron Warrior Volk, creating the first Obliterator.[3]

In M37, Sarum devastated an Imperial offensive against the planet.[2b]

See also