So this is a quick little concept picture I did in photoshop. A classic Mythological character the Manticore, I started with a picture of Heath Ledger as Joker and gave him kind of an Alan Moore look, only with multiple rows of teeth and big spikey tail. I'm thinking this is a boss you would fight, but that there would be a way to make him a quest giver as well, this could require doing other 'evil' quests or it could just be reaching a certain level in which he no longer regards you as food.
I seem to be more interested in world of the void than in the actual timelines themselves. What I really want to do is start making this into a game. I think starting out with Flash or Java might be the best way to get this project off the ground.