Sons of the angel-winged Primarch Sanguinius, the Blood Angels are noble and magnificent, a proud Space Marine chapter with ten millennia of history. They are warrior heroes who descend into battle on flaming wings to stand between the Emperor’s servants and the heretical hordes that seek to destroy them. Yet beneath their heroic exterior lies a dark secret known as the Flaw, a gene-curse that has bedevilled them for millennia, ravaging their souls until they fight as much for a suitably heroic end as they do for victory in the Emperor’s name.