Voldemort won the war, and the world ended in silence instead of victory. Y/N is about to be executed in the ruins of Hogwarts when Professor McGonagall gives her an ancient Time Turner and a single instruction: go find James Potter. She wakes in the 1970s, in the Marauders era, with memories of a future that no longer exists and knowledge that should not be possible. But the past is not as fixed as she expects, and every choice she makes begins to change more than just history. It changes her memories too. As she tries to prevent the rise of Voldemort, Y/N is pulled into the lives of the Marauders, where trust is fragile and every friendship carries weight. Sirius Black challenges her instinctively, Remus Lupin understands her in ways she is not prepared for, and James Potter remains the anchor point of a future she is trying to rewrite. Meanwhile, Peter Pettigrew watches more than anyone realizes. In a world where time resists being changed, even love becomes dangerous.