Ok you know the whole prank thing? you steal that book from the chick and so on and so forth to find out where j'skarr is... well i did all of that. but j'skarr wont re-appear... is there a fix out there for this problem?
Talk to the guy who told you to do the prank at 10PM in the halls/bedrooms or whatever.He'll then make him reappear.
Yeah I felt real stupid cause right after I posted this, I went to check it out... I looked in my Journal... Which is what i should of done in the first place
Always remember to make the quest you're wanting to complete your active one mate.That little arrow can saves tons of frustation.