"Ghastly Apparition: Mourngul are a soulsearing horror to look upon, radiating an aura of supernatural terror, unutterable despair and ravenous hunger in equal measure. Units from your opponent’s army must subtract 2 from their hit rolls while within 6" of a Mourngul if their Bravery is 6 or less and subtract 1 from their hit rolls if their Bravery is 7 or more." Is it correct this aura stacks? also does it stack on top of the Cursed book ? If so any suggestions on how a pure Ironjawz list can deal with it ?