Magic is power, and power corrupts. When magic corrupts someone and they abuse its power, the Circle can show up. They usually appear, completely destroy the offending wizard and then take all his/her spell books and magic items. They are known by the shirts they wear (big circle with a stick figure running away) and by impartiality. They have killed wizard advisers to the Emperor, fellow members, and even children. Membership in this group is a secret.