I can't find Seth. Faren is getting worried as the hours tick by and I've searched almost all of Imnesvale. The innkeeper pointed me in the direction of Valygar's cabin, but when I got there, nothing... I popped inside, and still nothing.
Am I just blind? Is there some really obvious clue that I'm missing?

Does the fact that I killed Valygar have anything to do with it? (I know, its horrible of me, but I wanted the planar sphere without having him in the group.) I would be extremely grateful for any help.