I'm a magical invisible being. Once I was a mighty evil demon, but I got punished for my deeds and I am now locked inside a small stone pendant. Whoever wears the pendant, becomes my host, someone I can control. I use my hosts energy and magic to try and unlock my prison bit by bit. I also try to gain my hosts trust, so that my host would open the locket manually by his or her free will to really set me free. But so far humans never trusted me enough.