I'm divided between having the story START with him in the dimension, or have it where he finds the dimension where the evil tyrant is...
I think having him find it would be too cliche.
Then again, the whole thing will probably be uber-cliche!
I think it's kind of like the book The Giver...I think, I've never read it, but someone summarized it to me once.
I'm still divided between Private Monsoon and the Epi-tome.