Teachings of Impurity

The Teachings of Impurity was a lamentable event that occurred in the history of the Argent Blades Space Marine Chapter during the middle centuries of the 35th Millennium. During a period of intermittent attacks by the Forces of Chaos, the Argent Blades had been stretched thin trying to defend the Kolleshian Sector, their assigned home sector. During the scouring of the sector, it was revealed that due to shortcuts taken during the induction of their recent induction of recruis, many showed signs of susceptibility to the temptations of the Ruinous Powers. Following a brief inter-Chapter war, these traitorous elements were purged and the Argent Blades instituted a slower and more stringent process to ensure genetic purity.

History
In 560.M35, the Argent Blades resources had dwindled and forces had been stretched to a all time low. The forces of the Archenemy struck into the sector at an alarming rate, and the Argent Blades were deployed in their entirety to purge the traitors. With the already under-strength chapter dropping in number at an alarming rate, the Purifiers and Apothecaries were tasked with finding new recruits, and quickly. They scoured the sector for recruits and in the end they succeeded in reinforcing their chapter to successfully repel the invaders. But the price of this success was soon revealed in a bloodbath.

Starting on the world of Luminis, many of these new recruits revealed the failings of the Purifiers and Apothecaries, as many turned on their brothers and pledged their service to the dark gods of those they had just fought. Their willpower and minds had not been tested to the extent that the Blades deemed standard, and the recruits had been easily swayed to the service of the Ruinous Powers. All across the sector, recruits turned on their kin, and while they took a few down in the surprise, the recruits were slain. After this incident the Argent Blades became more strict on their definition and tests of purity, starting these new tests on the Purifiers and Apothecaries responsible. They all failed...