"Since the founding of their Legion at the birth of the Imperium, the Space Marines of the Dark Angels have been dreaded by their enemies and held in awe by those they protect. Stubborn and relentless in battle, ever vigilant and zealous in their pursuit of their duties, the Dark Angels are among the Emperor's most faithful servants. Yet, it was not always so. For ten millennia the Dark Angels have harboured a sinister secret, an act so terrible and shameful it threatens everything the Dark Angels hold most dear – and may yet bring them eternal damnation."
