Reclamation of Mobidium

The Reclamation of Mobidium was an Imperial campaign undertaken by the Novus Krakens following the end of the galaxy-wide Indomitus Crusade to seek out and reclaim their lost homeworld of Mobidium from the encroaching Necrons of the Maynarkh Dynasty. But when they finally made their way from the Imperium Nihilus to the light side of the Imperium to the lost Orpheus Sector, they unexpectedly encountered a hence-unknown Chapter - the Penumbral Hydras engaged with the Necrons in fierce battle.

History
After the end of the Indomitus Crusade, the Novus Krakens returned to the light side of the Imperium, and sought their old home. For a century they were separated from their kin who still fought the Necron Maynarkh Dynasty in defence of the Imperium, but now they would strike back against them. The reunited Chapter together struck deep into the disbanded Orpheus Sector, fighting with a strength and fervor that could only come from the hearts of Krakens that would reclaim their homes. Facing off against the hordes of the Maynarkh Dynasty in the void, the Novus Krakens discovered their homeworld the site of an ongoing battle between a previously unknown chapter called the Penumbral Hydras and the Necrons present in the forsworn sector. The conflict to reclaim the world cost the lives of the Psykidion and current longest-lived member of the Chapter, Nemset Jourk, and current Herald av Krakonicus Kuram Androk. However, it also resulted in the rediscovery of Ancient Heroes entombed within their Dreadnought Sarcophagi, Contemptor Patterns with mechanical tampering that would stir a rage within the most conservative of Adeptus Mechanicus adepts.