Rewriting Destiny by Jesselouu Stale Result (Last seen: )
After falling through a broken Room of Requirment doorway, Harry and Hermione find themselves 20 years in the past. But not all is as it seems. They need to find a way back to their future, while also trying to save the lives of James, Lily and the other Marauders before the universe tries to correct itself. Cross-posted on AO3