Rebound

Two Gryffindors are sent back in time and given a chance to stop everything before it begins, but they'll soon find out that the Wizarding World was no less dangerous in the 1970s as it was in the 1990s, and that some people will do everything to keep them from succeeding...after all, bad things happen to those who meddle with time. [Marauders Era; OC/SB, OC/RL, JP/LE]