"By practicing, darling. I tried for a whole year, then a few months ago, I managed to complete the transformation for the first time. Just in time to go and spy on you and Malfoy. But don't you understand that by standing on that man's side, you're on the side of a monster who deserved to die? You have to become one of us! You're my cousin, you're too talented to waste your energy on those who don't deserve it! My new family will be yours too, you'll study with us and reach levels of knowledge you can't even imagine! I gave up my role as leader to Albus because he deserved it, but everyone still listens to my opinion. Just one word from me, and you'll be the new leader."