The Grey Lord 1: Potterverse Lichdom

A confused dimensional traveller awakens in the Forest of Dean on October 31, 1981. He's been given ghastly powers and then left to his own devices. Will he rise into the Light, or will he descend into the Dark? Or, perhaps, will he take a third path, and become a Grey Lord? Self-insert with a twist. COMPLETE, UPDATED 09/18/13.