Just got done some mining in Theren Keep. Up against those giant wolf spiders in there, they're NO threat to me at all, but there seems to be plenty of areas in there where you can't retreat, OR escape...leaving you with one stupid option, fight the spiders. Come on, unretreatable? Seriously? I wouldn't be so ticked about it if you could at least escape to another room. IMO, retreating should NEVER be blocked outright. A challenge? Sure. Maybe. But not blocked where no matter what, you can't.