Quote Originally Posted by Kelb_Panthera View Post
Just noticed the damn thing is mindless. I cast permanent image to create a box around it. Then I walk away and forget the thing even exists. It's not dead, but neither am I.

If I feel like it, maybe I'll come back later with some means of doing the 1 point of ability damage needed to paralyze it so I can coup-de-gras it to death. Probably not though, I have better things to do with my wizardly time.
It's a timer. You have to completely destroy it through either ability damage, negative level, HP damage or some other method. In 2 rounds, unless destroyed it will kill you no matter where you hide in the multiverse. It won't consciously kill you it simply will, because that is it's only job and purpose.