The Girl Who Lived In The Shadows

When Harry and Morgana Potter perish at the hands of Lord Voldemort, Death presents itself to the girl with an offer: she can move on and find peace, or she can live once more and try to re-write as much of the story as possible. When she accepts, she doesn't expect to wake up in the year 1975. Sirius/Oc with mentions of Draco/Oc.