The first year at Hogwarts should have been marked only by the dazzle with the castle, the magic classes and the discovery of a world bigger than any of them had imagined. For Draco Malfoy, Blaise Zabini, Pansy Parkinson and Beatrice Williams, all newcomers to Slytherin, the first few days seemed exactly that: a mixture of high expectations and the comforting familiarity of growing up together since kindergarten.