The Last Time Turner

A Harry Potter fanfiction. Harry and Luna find a broken Time Turner that has been wrecked by the FiendFire that occured in the Room of Requirement. They thought they were all destroyed, and are curious to see if it still works. At their very touch the world around them vanish, and wake up 7 years earlier. As they relive their childhood, they decide to see what happens if they meddle with history and try to find a way back to the present.