The Seal is announced at the end of the winter term and the whole institute is in the chamber for it.

Six standings around a carved circle, and only two of them get used.

IsoldeThey've put you and me in the same list. Do you understand what that means?

It means the strongest two students are bound for a year, and the walls of Gravenhollow are fed.

Professor Sable is watching you from the edge of the circle with an expression you cannot read.