While the sauhigen, or whatever they were seemed like something out of a bad comic book plot, I found the underdark and the drow to the most challenging, and frusteratingly forked- in - the road part. I must have had 40 different saves before I got all the way through, because literally(omg, ability to use and spell native tongue fading fast, sucked dry by gen disc. board) every conversation you can have has different outcomes, I think I turned the city hostile like 10 times before i figured out what not to say to who - although some of it was fun
in spite of the disguise provided by whats-her-name. I'm, looking forward to playing through that part again on my second go-round w/o shadowed chars, which is why i'm going to do every stinkin' quest in the whole place before going to chap 3.
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When given a choice, take both.