hp brother

*harry arrives at the station early and sees Ron and Hermione waiting for the train to hogwarts* Harry: hey guys. Hermione: harry have you heard the rumor? Harry: what rumor? Hermione: there is a rumor that you have a younger sister who is starting hogwarts this year! but don't get too exited, she was with you when Voldemort tried to kill you and some of his evilness transferred to her! and she was holding you so she has a scar on her hand, also on a lightning bolt. people say she'll probably...