What if Harry potter was a twin? What if his twin was there the night their parents died and had to live with the dursleys? What if they went to hogwarts? this is about Katillia, and of Course Harry Potter. They both survived the night with Voldemort and they both have the scars to prove it. Disclaimer: All Harry potter stuff belongs to j.k. Rowling I only own a couple of people that Me and a couple of other writers made up