[SixOfSpades]

You actually CAN rest in her area, but you need to cast Wish (or Limited Wish, I think) to do it.

I've only killed her once, and that was with cheese, not cheats. I'd just gone through ToB and kept getting more and more ticked off at how the game no longer pretends to be fair: Yaga-Shura will summon an infinite amount of enemies. Kill Sendai 7 times and she still ain't dead. Draconis can turn Invisible once per second, wasting all the spells you just cast at him. Abazigal seems to have permanent Critical Strike. Balthazar seems to be able to do whatever the hell he wants, etc, etc. So by the time I got to Amelysan, I was ticked as how the game was cheating so much, so I deliberately killed her in the cheapest, cheesiest, most munchkin way I could think of: I finally had Jan cast Project Image and stack a bunch of Traps on her spawn point. Die, you incredibly irritating bitch.