I finished killing the magic raven guy that had Ivar. Maybe the problem is that I don't remember if I talked to Ivar in the cage before I left, but I don't have any more quests for Grizzleheim. There's a lot of places I haven't gone yet - like Ravenscar, but I can't get in.
Do I have to go to MooShu and do the rest of G. later? Is there a way to reinitiate the quest so I can see if I missed somethng?