Why not combine a few of those ideas or something? I think all of these ideas are cool.

The cathedral is made up of remains of Imperial Knights, and the cathedral is part of the Oblivion portal, I assume? Or it's part of mage's hideout or something? Maybe some soul-trapped people/undead knights (who act like zombies) are defending the place or something? :ashamed:
I mean, what mage would be so, uh, careless to let some strangers into his hideout (if that cathedral
is part of his hideout)?
Er, I'm confuzzled again. :eek: Sorry! :paperbag: