I thought I might make it easier on the people trying to get the -50hp grim cest by posting a picture of where the statues for the quest are. I havent done the quest in a very long time. I dont know if it tells you where to go or not. So here goes.
Please tell me if this has been posted or not...sorry if it has =/
NOTE: Kings watch is outside of Fort Ranik, but im not sure of the path to get there, im sure you can figure it out though.
Cities of Ascalon quest for 55 monks(possible spoiler)
kaze0099
Amsterdam
This is a much easier way to get the -50 then paying some rediculus price for it, but the surmia one takes a while, especially if you have to keep rurik alive

Juguard
to get the quest, you must first complete The Great Northen Wall Mission. Its the very first mission.