Sewer of Horrors questions...

[Cuckoorex]

First, where is Merzadan the Undying and the Demilich? Did I miss one or both of them in the big toxic gas maze room?

Second, can you revisit the sewers after you complete the quest?

 

[VDX_360]

To answer the first question, I suggest looking at the map of the area. You'll spot the lich hangout on the south end.

http://www.exiledkingdoms.com/wiki/inde ... orrors.jpg