Trying my hand at adding to the walkthrough, for the last section of the game.
It's been some time since I went through all of that, so I don't remember many of the item names... mostly those 'keys' you have to use to unblock vines and the door in Bloodgill Keep. If you know, please go ahead and change wherever I wrote <item_name>. In the meantime I will try nagging people online to give me that info.
I'm thinking to edit the map screenshots (and then add them to the walkthrough) with markers for directions and locations, when I try to describe it with writing it is long and hard to understand. Will give it a shot later today.