Cole is right, of course. Stuck is exactly what happens. As Loghain waits, sword drawn, Aren charges him...and her blades pass right through. She swipes again, tosses a bomb, uses all those assassin techniques Zevran had taught her and...nothing. He remains standing. She lets out a roar of frustration.

"This isn't what happened! I killed the nug-humping son of a bitch! Why won't he just die?!?"