The Sorting process is also different to that of Hogwarts. While the rest of the school watches from the circular balcony overhead, new students file into the round entrance hall. They stand around the walls and, one by one, are called to stand on the symbol of the Gordian Knot set into the middle of the stone floor. In silence the school then waits for the enchanted carvings to react. If the Horned Serpent wants the student, the crystal set into its forehead will light up. If the Wampus wants the student, it roars. The Thunderbird signifies its approval by beating its wings, and the Pukwudgie will raise its arrow into the air. Unlike Hogwarts, more than one Ilvermorny house can claim a student; when two or more carvings react, the student is entitled to choose their house.