The party is just about ready to spring into action, however the sudden look of horror that crosses Cassiopia's face tells them that they have run out of time. Even if that wasnt enough, the overpowering dread that grips everyone's soul lets them know something has gone very wrong.
They slowly turn to the door, and standing in the ruined frame is the one figure they had hoped to avoid. A man stands there, fully 10 feet tall; his body seems filled with flame, his hair is made of lightning, and his eyes seem to made of ice. He surveys the group, with a burning hatred, and total contempt. A glowing pentagram surrounds his whole body.

I dont know where you think you are going with that soul, but I can assure you that shes not leaving here, I claimed her years ago and I have no intention of giving her up.
For that, and for the wanton destruction of my property, give me one good reason why I shouldnt obliterate you all completely.