what is the nether scroll and how do i complete it?

First you must take Edwin, then go to graveyard, there Edwin would suggest nether scroll should be found on his behalf as soon as possible which is secreted below the haunted tomb.

And a tip maybe spoiler here, you best carry Korgan along for his quest destination likely meets Edwin's except a small difference.;) There a pathetic puny lich is waiting for you, end his suffering by your blade and the next happening would go itself without your involving.:)

yes but where do i go to get to the haunted tomb?

At the opposite of the female drow's spider nest.

And if you want all the fun that ensues, DON'T pick the "party treasure" dialogue option! (I did... :( )

Ara
(Wants to make an Edwin Romance Script....)