Good call. They were, in fact, up there. Unfortunately, it still shows up as an unfinished quest. I imagine because Korgan wasn't able to say his bit about where his former companions were likely kicking back a few. Saved and reloaded a couple times, letting the main character roll the bods, and letting Korgan roll the bods, having every character look at the book, etc. Just couldn't get him to say his bit after the battle.
Still unfinished...
