Harry and Merope to the Rescue

Harry and Merope arrive at their next destination just in time to rescue Little Harry from an attack from the DEs, who have already killed the Dursleys, and remove him from the clutches of Dumbledore at the same time. It's quickly deduced they are in a sort of parallel universe, they are just trying to figure out exactly how different it might be. (Pairings: HP/MG)