Lots and lots and lots of stairs. Most of which don't have any handrails to boot. At least there's the occasional helpful wall for Alistair to brace on.

"New rule," he declares, with great gravitas, somewhere around the third or fourth flight they have to traverse. "Next time you have to pack up and move to some ancient elven fortress, you pick one with no stairs. Stairs are evil. Definitely Corypheus's work."

(He manages Corypheus's name this time, but only because he has to slow down the verbal pace dramatically.)