Changes

In 945.[[M36]] the Storm Wardens aided the , [[InquisitionChapter Master]] in operations against an infestation of [[EnslaversOwin Glendwyr]] in took his forces to the [[Steropes Cluster]]. What came in response to pass in Steropesa reading of the [[Emperor' ancients Tarot]] by the [[Chief Librarian]], cyclopean ruins is unknown, but although some versions of the account state that it may have been at the conclusion behest of the conflict [[Inquisition]]. The region of space had many worlds consumed by the energies of the Storm Wardens' [[Chapter MasterWarp]], . Several worlds in the periphery had come upon the dominion of [[Owin GlendwyrEnslavers]]. Glendwyr had a painful choice: deploy his warriors in costly battles or destroy the worlds and their populations. In one account, discussed with Glendwyr and an unnamed [[Inquisitor Lord]] of the [[Ordo Xenos]] matters most direexplored a series of ruins of uncertain origin. The decision made would affect the Storm Wardens as a chapter thereafter. By authority of the and an allied Inquisitorial force came upon attack by [[Lords of TerraEnslavers|Enslaver]], Owin had much of the Storm Wardens fortress-monastery on Highcastle sealed. All records of their history controlled humans and Founding were destroyed or hidden away. Furthermore, the Storm Wardens homeworld of later by [[SacrisEnslaver Behemoths]] was forbidden to have contact with . The ensuing battle cost the lives of many battle-brothers. Three worlds were cleansed of the [[Imperium]] at largexenos presence, deceptive propoganda but ultimately the Inquisitor Lord declared the Writ of a virulent plague Exterminatus on Sacris's surface being spread by automated beacons in seven more before the planet's orbit in years to comecluster was declared purged.{{Fn|1a}}{{Fn|2b}}

Finally, many The Storm Wardensreturned to Sacris, including where it was discovered that a psychic taint from the Enslavers had corrupted a number of the entire veteran [[First Company]] . The Chapter's Apothecaries, Chaplains, and Librarians attempted to remove the taint, but it was found to be too ingrained and presented a threat to the entire Chapter Master Owin . The Inquisitor Lord wanted the infected to volunteer for liquidation, but the senior officers rejected it. Glendwyrproposed a compromise. Having convinced the Inquisitor Lord of its viability, were placed the Chapter Master ordered that he and the First Company be interred within stasis sarcophagi in hidden stasis vaultsfar below the Chapter's fortress-monastery, as solely recorded by which would not be opened until a cure for the taint was discovered. The Inquisition placed an addition demand of requiring that Sacris be isolated and all knowledge of the Nemesis Incident be purged from the Imperium's history. Deceptive propaganda of a virulent plague on the planet'Liber Tempest''s surface was spread by automated beacons in orbit for years to come. {{Fn|1a}}{{Fn|2b}}{{Fn|2c}} The sealing of the vaults caused the Chapter to lose access to the details of their founding or early history. This also resulted in the legend of the lost First Company and Chapter Master returning one day when the Chapter and Imperium are threatened, the battle-brothers seeking every chance to prove themselves in the eyes of those who will judge them upon their return. Only the [[Chapter|Chapter's]] [[Space Marine Dreadnought|Dreadnoughts]]are aware of the location of the stasis vaults, having but have taken vows a vow of silence, stand guard over these hidden chambersstanding as mute sentinels.{{Fn|1a}}{{Fn|2c}} Only the ''[[Liber Tempest]]'' records the Nemesis Incident. This text is only available to senior officers of the Chapter, no one outside the Chapter having any knowledge of what happened.{{Fn|1a}}{{Fn|2c}}