Katherine Spencer and the Original Prophecy

Katherine Spencer was raised to believe that she was quite ordinary. Orphaned, but ordinary. But on one fateful night in the August of 1975, she discovers that a magical school for witches and wizards; Hogwarts, awaits her, as well as an evil wizard named Voldemort. [Slight AU with redemption arcs for some of our favourite dark-haired boys with tragic childhoods]