Changes

The once-shamed [[Ebon Sentinels]] were assigned to a [[Torchbearer]] Task Force in [[Segmentum Pacificus]], having since regained their honor honour through a 101 -year [[Crusadeof Penance]] of Penance. They were assigned to help deliver [[Belisarius Cawl]]'s new technologies to the [[Astral Spears]] and [[Condemnors]] Chapters [[Chapter]]s then return to Terra. Dispatched next to the [[Manask System]], Torchbearer Task Force ''[[Conqueror's Forge]]'' carried [[Greyshield]] reinforcements and Primaris technologies to the Ebon Sentinels Chapter. As they approached Manask, they noticed the system would not return their hails. Known only to the accompanying [[Custodes]] and [[Inquisitor]], a secret second flotilla shadowed the task force after [[Grey Knights]] [[Prognosticar]]s had received damning omens.{{Fn|1}}

The Imperials discovered that the Ebon Sentinels had fallen to the dark powers of [[Chaos]], seemingly being corrupted after receiving dark visions of swift renewal and survivor from their dead [[Adeptus Astartes Homeworld|homeworld ]] of [[Vengla]]. The Grey Knights accompanying the Task Force were already aware of this turn, and had secret orders to purge the wayward Chapter. Grey Knights of the [[6th Brotherhood (Grey Knights)|6th ]] and [[8th Brotherhood (Grey Knights)|8th Brotherhoods Brotherhood]]s spread out to isolate and destroy the Ebon Sentinels orbital assets. A splinter force under [[Inquisitor ]] [[Kavnar]] remained at the [[Mandeville Point]] to ensure none could escape or stray into the system for what was to come. Meanwhile, the [[Grey Knights [[Strike Cruiser]] ''[[Damnation of Fiends]]'' led a fleet encirclement of the Ebon Setninels Sentinels home world and scuttled the remains of their fleet. At the same time, the Grey Knights launched a teleportation assault with [[Grey Knights Terminators|Terminator]] and [[Grey Knights Strike Squad|Strike]] Squads on the weapons platforms of [[Ta'rond]]. There, the Imperials discovered that many of the Ebon Sentinels had become [[Possessed Chaos Space Marine|Possessed]].{{Fn|1}}

At the systems [[Astropath]]ic relay Grey Knights Terminators, [[Grey Knight Interceptor Squad|Interceptors]], and [[Grey Knights Purgation Squad|Purgators]] deployed via gunship and destroyed the Ebon Sentinels' capacity to call for aid. The greater portion of the Grey Knights meanwhile struck at their homeworld of Vengla, where they discovered an ancient Daemonic [[Daemon]]ic presence imprisoned in its core. The beasts beast's psychic influence, empowered by the [[Great Rift]], seeped out beyond its million-year-old bonds, exploiting the Ebon Sentinels ' desperation for survival. Six squads led by [[Brother-Captain]] [[Mithrac Tor]] enacted a grand ritual of banishment that defeated the Daemon, crippling the remaining traitors.{{Fn|1}}