Sent on a mission from Dumbledore, Ron and Hermione travel back in time to discover a mystery that has been hidden for twenty years. This is soon complicated by nasty characters, charmingly bothersome Marauders and the dangers of time paradoxes.

A 12 year old Lily finds out that being part of two very different worlds isn't going to be easy. Her sister, Petunia makes sure of that...This will eventually lead into some L/J romance later on.