But I just found a pretty big thing that I didn't know about, that isn't mentioned in any walkthrough that I've seen, and that actually gets you a potentially previously unknown stat boost. It's a spoiler though.
Did you catch that? SPOILERS IN THIS THREAD. Don't read it and then complain.
Okay. SPOILERS BEWARE. Here we go. Scroll down.
In Dan Simpson's Walkthrough, it says this, regarding your conversation with Ravel in her maze:
"After that ask what OTHER forms she has taken, and she'll reveal that she was Mebbeth, Ei-Vene and Marta. Ask about Mebbeth and tell her that Mebbeth was kind to you, therefore Ravel was kind to you. Follow this to get:
WIS +1
90,000 experience"
This is incomplete. The reward you will get here is dependent upon what answer you gave to Mebbeth previously, back in the Hive. She asked you why you wanted to learn the Art, and you were given 3 options:
1. Because I just want to know.
2. Because I may need it to solve the mystery of who I am.
3. Because I want power.
Dan Simpson must've picked option 2 (and so did I, always, and I bet so do most people), because 90k xp and +1 WIS is what you get if you picked that option.
But if you picked option 1, you get 90k xp and +1 INT instead.
And... here's the kicker, if you picked option 3 (which gets you a small evil alignment hit when you say it to Mebbeth, for the record), you get 120k xp and +1 INT -and- +1 WIS

Pretty cool, eh?

Qwinn