Ok After doing research (and through the use of forums) I have found out that the actual runestones are books. So now my question is "Where are the exact locations of these books? I've only been able to retreive one book so far and that was after defeating Munin over in the wolf's palace. Any hints/suggestions as to where I'm supposed to look? I've been over all the areas that I can get into searching for them without having much luck.