What if shredder was mind controlled by a vengeful demon? And you are able to get the demon out but than slowly controls you and turn worse than shredder. Who will destroy the other? Who will save you? And who will die? (This is my first Tmnt story that I have been thinking about for a while. I don't own the songs or pictures unless I add a note saying I did. I hope you guys like it. Have a good day.)