The Carrion Feast

The Carrion Feast was the name of an Imperial excoriation campaign carried out by the wrathful Storm Angels Space Marine Chapter against the world of Corwinus Secundus, to cleanse it of the taint of Chaos Cultists and their insidious influence on the planet's populace.

Background
Belehuera, the Storm Angels' Master of the Faith, led a force of his Chapter against the world of Corwinus Secundus, where distress calls for help had reached the Astartes from Ionnacaira. Deep in the Ghoul Stars, the Grim Angel faced off against a perverted vision of his Chapter's traditions. Millions of cultists pretending to honour the Great Angel feast on the living bodies of hapless victims and supplicants. Primitive and lacking even the mastery of iron, the degenerate cultists had risen to consume all those who rejected their teachings and clung to the Corpse Emperor. A dark fury fell over the Astartes and they descended into a maddening slaughter on the inhabitants.

Only the Grim Angel managed to keep his head clear. Realizing that foul sorcery was afoot, he used his charisma and imposing presence to gather back his Brothers and leave the world behind. Many Angels refused to retreat in shame, but after six days, Belehuera managed to leave the cursed world beyond. Months later, he returned, with the full might of his Chapter's Librarians. The Master Archivist Caïri gather his psyker brothers and together, they broke the dark shroud of madness surrounding Corwinus Secundus. The Grim Angel then led an extermination campaign, slaughtering the cultists with extreme relish. After more than two years, the last inhabitant of this planet was killed and calls were sent for colonists to be sent, so that the world's resources wouldn't be left to rot.