There are four, formerly five, levels of hierarchy in The Fiery Lock. At the bottom, you have the pledge. They are often given the dirty work, forced to endure many torments at the hands of those in higher tiers to break their will or tempt them into attempting The Rite. The only way to move higher is to undergo the rite all practitioners of
The Prestige go through. If they survive the ordeal, they join the priesthood, becoming a red priest/priestess of The Fiery Lock.
The Priesthood is dedicated to furthering the organization's agenda, as well as tending to menial tasks around the mansion that serves as their base of operation. They spend much of their time learning to hone their skills in The Prestige, namely
Arcana Sanguis. Anyone with red hair will gain Arcana Sanguis if they survive The Rite, and it is considered a sacred art in the cult.
Men cannot progress further, but women often entertain the hope of becoming a Lady-In-Waiting. These women are those who show enough skill to attempt the pilgrimage, the oldest ritual known in the world. The pilgrimage is required to enter the highest tier in the cult occupied by one woman, The Matron, who leads the cult.
Hmmm... perhaps a PC could be a former member a descendant of a former member who doesn't hold with the butchers' ideals. If you want to kill a matron, carry around a bucket of paint or a sack of flour to topple onto their head. Getting to them may be tricky, but once you do it'll be relatively simple to take them out.
Eh, technically their hair is still red under the paint, so that may not cut it. Very creative though. I should specify the hair itself must be a certain color. Maybe if you could sedatenone and dye her hair it could? Hmmm.... also if they become all... eldritch by transforming into the mantle, tricky would be an understatement. They be quick... and their is alot of hair to cover. XD Morrigan is mentioned many times in the world, and she is exactly the kind of PC you describe! Almost made it to matron even. Also, idk if your comment on the butcher ideology is an indication that you explored the history, Oof thank you so much. That took forever lol if not, I would definitely recommend if you want to know more about how they became this way. Thanks once again!