Purgation of the ''Harvester of Souls''

The Purgation of the Harvester of Souls was a space hulk purgation operation carried out by the Ebon Knights Space Marine Chapter upon the space hulk known as the Harvester of Souls. While investigating the massive derelict, it was soon discovered that it was not as lifeless as was first thought, as they encountered a large force of Heretic Astartes from the notorious Nurglite Chaos Warband known as The Cleaved. A vicious battle quickly erupted between the opposing space marine forces, and the bulk of the Ebon Knights faced annihilation at the hands of the much larger Heretic Astartes forces. While the Ebon Knights fought a forced withdrawal, a squad of Veteran Marines and a trio of Dreadnoughts volunteered to sacrifice themselves in order to take out the heretics once and for all. As the final gunships departed the space hulk, the valiant battle-brothers that stayed behind detonated the reactor core of one of the larger vessels that made up the space hulk, which started a catastrophic cascade effect and culminated in a massive explosion that utterly destroyed the space hulk and all those within.

History
An investigation by the Ebon Knights of a Space Hulk designated The Harvester of Souls newly materialised out of the Warp discovers strong elements of the Renegades known as The Cleaved to be aboard. The ensuing fight is won when Ebon Knights' Assault Squads, advancing behind a trio of Dreadnoughts, get close enough to set Cyclonic Charges in the Hulk's enginarium, and remotely detonate them after they withdraw.