KMS 1.2.221 - Black Heaven

I still think Suu will reveal at the end or around the middle of the story as the current vessel of the black mage. The point at which Gelimer betrays Orca and throws Suu at her is when you take the first quests from the evolution lab, and at that point he mentions the Black Mage doesn't need more minions but a body. That would also explain all the deal with kidnapping people from Eldestein and all the body experiments they were doing.