Dunno if it's any help..
"Thicken Mana - Used to make Viscious Mana, required for Wu's Fighting Gauntlets. I know of no other use for this spell, and it's difficult getting the spell from Lesser Faedark at the Brownie city. You can use Alliance to get yourself non-KOS to the brownies then Minor Illusion once inside to gain access to the merchants."
http://www.members.tripod.com/xornn/...2812-15%29.htm