Forge world New's letter dropped with something interesting, new, and not Heresy era related. Let's take a look at this fantastic model that is just screaming for conversions or uses in a Chaos army.
Dreadful tales are told around huddled fires of those lost in the killing cold of a mountain winter, driven by famine and pain to hunt their own companions and former friends for their meat and the warmth of their blood. There is no salvation for these damned souls, for the horrors in which they indulge cannot save them and they become things neither dead nor alive, condemned to an eternity of empty hunger and terrible isolation.
Spite, desperation and malice force these thrice-damned creatures to linger beyond death, the most insidious and destructive winds of magic coiling about them to warp and twist their cadavers into inhuman proportions. Soon they become something neither ghost nor revenant – a Mourngul; a monstrous razor-thin shadow of cold flesh and cracked bone with a gaping maw of needle-teeth and a cavernous stomach that hangs open like a dreadful wound
All rights and such belong to Forge World of course but this is really a interesting model.