Crius

The 7th world of the Aglaean system and former dominion of Hephaestia, Crius was a mining world which contained extremely rich promethium deposits found only in single layers of Strata. Evidence of incredibly ancient ruins had been discovered on the planet which was otherwise nearly completely barren save for patches of strangely verdant growth where most of the planets population dwelt. It was thought to have been the home of an ancient Xenos species and a much more verdant world before some unknown cataclysm. Soil analysis had revealed absolutely no nutrients within the scoured soil, and an unusually high concentration of carbon. Ruins of an unknown species had been found upon the planet prior to its destruction which would later be theorized to have connections to the Necrontyr by the Xenobiologus. As such, the Hephaestian Order of Binharic Cessation committed much to study of ancient alien technology using ground penetrating scans and deep mining operations.

After the planet underwent exterminatus twice, the bulk of the world remained intact, but the planet splitting devestation inflicted unto it left asteroid fragments the size of cities and nations strewn out through orbital path of the planet. Over the next 1,000 years, the oily black metallic debris fragments would be built up and fortified into the Gorgon Line, the main spaceborn defensive line about the forge and inner system worlds.

Significant events

 * In 41.002 the world was revealed to be as the silent order feared; a Necon Tomb. Awoken en mass by the triggering of anti-warp protocols, the Jerathi'tekh Dynasty of Necrons awoke. In a strange turn of events, the tomb woke up in a haphazard fashion, with the intelligent nobility rising first. A strange parlay took place between the Magi of the Silent Order and the dynasty which resulted in a temporary ceasefire. An exchange of information went on and a stall for time began. The spontaneous arrival of the Eldar with unknown heraldry resulted in a sudden conflict breaking out, and the Mechanicum and Eldar forces drove them back underground. Hours later, the mechanicum fleet arrived and the world was underwent exterminatus by Cyclonic Torpedo to destroy the buried tombs.
 * In 41.019, the remnants of the world became active once more as Necron presence resurfaced. Magos Feindt, the former lead magi upon the planet, returned in the company of the Lord Malagra of Hephaestia and lieutenants of the Lord Myrmidax. A brief but fruitful incursion was made and necron forces bypassed and defeated and what knowledge had been gained was spirited away to Mars. Deep core emissions of Quantum Phasing and Dolan Gate activation was detected as fighting commenced. The world was then hit with a second cyclonic melta torpedo. Necron presence is confirmed as missing, with potential teleportation a likelyhood, or were  destroyed.