When Hermione, Draco, Pansy, Daphne, Theo, Vince, Greg, Zach, Tracy, and Milli arrived in the Great Hall, they found that the tables had disappeared. Rain lashed against the high windows and the enchanted ceiling swirled darkly above them as they assembled in front of Professors McGonagall, Snape, Flitwick and Sprout-the Heads of House-and a small wizard whom Hermione took to be the Apparition Instructor from the Ministry. He was oddly colourless, with transparent eyelashes, wispy hair and an insubstantial air, as though a single gust of wind might blow him away.