I think that the root of the crusade's corruption can be found here. Arcanist Doan watches over the library, and teaches many young recruits to wield the arcane arts.
The Light is the only true path! You must kill him, <class>, and redeem this glorious movement!
<Joseph the Awakened shifts nervously.>
You'll want to dispose of Loksey as well. His hounds seem to disapprove of our noble intent.
Rewards
You will receive: 1 33
Progress
Did you take care of Loksey and Doan? Their kind do not belong in the Scarlet Crusade.
Completion
Good work! I just know the Light shines favorably upon us for our work. Our cause is righteous!
Notes
This is the first post-Cataclysm quest in the library wing of the Scarlet Monastery. Joseph the Awakened stands just inside the library wing with a few Scarlet Renegades beside him.