@ZAVAZggg I'd say it is relatively new to the world.
Well the reason I ask was because I was going to try and tie it into the character's backstory. They won't have the magic, but maybe a family member did and the cult executed them for what they deemed heretical and then banished my character to Anor Londo as further punishment.
Which I was thinking could be the main reason they want to kill them all.
Of course I can also take the simpler route of a family member or friend just speaking out against the cult for following a failed system, etc.