Three Turns

"What we need," Dumbledore said slowly, "is more time." He looked at his watch, "three turns should do it, Miss Granger. Good luck." Only Lady Luck wasn't on time. Time went back, but not to when it should have. "Well, we came from the future, but apparently it wasn't two hours ago as we first thought and if that really is Remus Lupin, I'd wager we went back twenty years…" AU