James Potter appeared after Death to help his son escape from the graveyard the night Voldemort returned. The next time he awoke he discovers the way Harry's treated at the Dursleys and finds himself powerless to help his son. How could he? Harry couldn't see him. No one could. No one except Snape, that is. Oh, this was going to be hell. (No pairings)(Fatherly/Mentor Snape)