Time has not been kind to the Sons of Sanguinius. Once seen as the most blessed of the Emperors legions, they are now viewed with fear and mistrust by the citizens of the Imperium. Ever since the Horus Heresy and the loss of their primarch, the Blood Angels have struggled to live with genetic flaw that has curse them right up to the present day.
For centuries the Blood Angels have been attempting to track down the Lamenters in order to study their pure gene-seed. With the return of the Emperor, the lost loyal Primarchs, and the resurrection of Lion ElJonson and Roboute Guilliman, they have redoubled their efforts to get a hold of the only stable genetic stock of the Angel of Blood.
Eventually, they find the Lamenters and study their gene-seed. Finding it to be almost perfectly pure and without flaw, the Blood Angels rejoice at the chance to finally rid themselves of the genetic curse that has plagued the sons o