Motorskills
Explorer
I found an epic "Guide to Out of the Abyss" that you absolutely must check out if you are DM'ing this:
http://thecampaign20xx.blogspot.se/2015/12/rage-of-demons-guide-to-out-of-abyss.html
Highly recommended!
Oh my lord,that write-up that is soooo good. Thanks for linking.
This adventure thinks it is a sandbox, but really it is a railroad in serious denial.
Fo sho.
The more familiar I get with OOTA, the more brilliant I think it is, but why make it so damned hard on the DM?!
I wish the book had had that kind of detailed overview at the front, plus another similar page(s) just for Gracklstugh.