I'm trying to unlock the achievement. It's the one where you side with the mages in the final battle at the circle tower. I read that you needed to use the Litany to prevent any blood magic from turning the Mages into Sloth Demons. I have done this 4 times. I keep all he mages alive and well and right when Uldred dies, they die. How many mages are there? I know there are the 3 in the group with Irving (including Irving himself) and one mage on the other side of the room. Is there more that I don't see?