Sigmarabulum, the World-Ring is the orbital loop of soul-mills, forges and laboratories that surrounds Mallus, the Broken World. It is home to the Chamber of the Broken World and the Anvil of Apotheosis.[1a]
Created by the combined power and art of Grungni, Tyrion and Dracothion it sits far above Sigmaron, to the south of Sigendil where it encircles the broken remains of Mallus, the world-that-was. There are only a few routes between it and the palace-city of Sigmaron, with the swiftest aether-craft taking days to reach it. [1a]
The Tower of Apogee
It is surmounted by The Chamber of the Broken World on the edge of the ring’s inner curve, facing the remnant of world-that-was. It was said to have been the first part of the entire structure to be constructed from which the rest of the ring had grown. Around it are smaller towers, connected by hundreds of walkways and lightning constantly flows about the great pylons that crown each of them. These are the soul-mills - the storehouses of the dead souls containing those fallen Stormcast Eternals who cannot be immediately reforged – whether due to the sheer number of deaths or some more esoteric reason.
The Tower has many semi-enclosed archways, where heavy artillery pieces – celestar ballistae stand ready to repel anyone foolish enough to attack the tower or blast through the scaly hides of the star-born monstrosities that occasionally slunk down from the outer dark.
An immense pair of double doors guards entry to the chamber itself, covered in celestial carvings beyond the skill of mortal hands are guarded by a pair of clockwork gargants. They are constructed from gold and brass and are fashioned after two of the ancient lords of that race, Mog and Gamog, who had served for centuries as Sigmar’s shield-bearers in penance for their earlier defiance. Their own death-masks adorn two great automatons. The honour of guarding the chamber is much vied for among the Stormcast with only the greatest warriors of the paladin conclaves, as determined by the Trials of Culmination, were allowed to stand sentry here and then only for twelve days and nights.[1b]
The Chamber of the Broken World is vast, roofed by a dome of dark glass, wrought from the sands of the Caelum Desert. It is divided into three Tiers of Trial with each on gargantuan clockwork platforms that ensure they are perpetually moving slowly around the central core.[1b]
- The Forge Eternal: Here the fires of creation are kept stoked by the celestial automata of the Six Smiths.[1b]
- The Cairns of Tempering: seven great stones plucked from the volcanic surface of Mallus by Grungni himself. [1b]
- The Anvil of Apotheosis: An ensorcelled altar of pure sigmarite, torn from the core of Mallus by Sigmar himself. It smoulders with the heat of that world’s dying, and sits atop a dais fashioned in the shape of the High Star.[1b]
- Thunder-Gates: Using lightning they can instantly teleport Stormcast between Sigmarabulum and Sigmaron but only those clad in blessed sigmarite. [1a]
- Many of the ring's most finest celestial orreries are powered by a single speck of Celestium, Azyr's Realmstone.
- 1: Soul Wars (novel) by Josh Reynolds
- 2: Battletome: Stormcast Eternals (2015), pg. 17-20
- 3: Age of Sigmar: Core Book (2nd Edition) Azyr, Realm of the Heavens pg 114-115
- 4: Warhammer Age of Sigmar: Malign Sorcery - Concerning Realmstone, pg 10-13