Nekhrun System Atrocities

The Nekhrun System Atrocities is a system-wide, brutal Imperial suppression campaign carried out against the recalcitrant worlds of the Nekhrun System that had declared their independence from the Imperium. When an Imperial Crusade was despatched to the rebellious system to bring it back into compliance, they found several Imperial worlds that had been left as devastated charnel wastelands, their populations butchered and their cities laid waste. Though it was never confirmed beyond a shadow of a doubt, suspicion fell upon the bellicose and unforgiving Murdering Sons Chapter.

History
A campaign whose true facts will never be known, when an Imperial Crusade led by the Ice Dragons Chapter was despatched in 515.M35 to the rebellious Nekhrun System to bring it back into compliance with Imperial rule, they discovered a nightmarish scene of carnage and destruction never before witnessed. Formerly vibrant and industrious Imperial worlds were left in ruins in the wake of a marauding force that had swept through the system in a swathe of wanton destruction. For five years, individual worlds within the Nekhrun System were slowly subjected to a brutal campaign of bloody retribution, leaving their capital cities as bloody abattoirs. The telltale signs pointed to an unknown Space Marine Chapter.

The shell-shocked, wide-eyed survivors whispered in hushed tones of 'sable-clad' warriors who wore skull-faced helms and battle-plate that was adorned in the bones and flayed skins of their victims. These unheralded killers emerged to strike from the least anticipated quarter, delivering swift brutality and wanton cruelty which brought entire planetary populations to their knees in abject terror. Then, as suddenly as they arrived, they disappeared back into the void from whence they came. Though the Murdering Sons deny being the ones responsible for committing such heinous acts, their trademark calling card of murder and the pall of horror typically left in the wake of one of their brutal suppression campaigns, permeated every planet within the Nekhrun System.