What if Draco Malfoy had a sister? As we know, in the original series Draco grows up as the only child of Narcissa and Lucius Malfoy. For him that means a lot of pressure and expectations. Also, we never got to see his real thoughts and feelings about what happened because he had no person he could trust and talk to. So what if Draco didn't grow up as an only child but with his sister Alhena? *The story is based on the Harry Potter series by Joanne K. Rowling.