http://nwn2forums.bioware.com/forums...76110&forum=95
(Link to one of the official threads on the topic. April 2006 - Single Player Campaign questions)

Lots of interesting stuff on here. Anyone who has ever played through a well thought out module or has tried to construct one (especially for Baldur's Gate I and II) has probably asked themselves at least twenty of the questions put forth in this thread. I am certain more than a few of them Ziroc has struggled through when putting together Escape From Undermountain.