A concealed, underground chamber on Sudaria which hid the Potentia for thousands of years. An inscription on the surface called the chamber "forbidden." One must use the nine stone tablets on a pedestal, applied in the correct order to generate the number fifteen in all directions. Only then, when one's hands are placed on the pedestal, is the Potentia revealed. If not, the pedestal clamps down on the person's hands and poisons him or her.
The Brotherhood - Allina and Sheppard's unit gain access to the Quindosim chamber where they begin to work on the puzzle that will grant them access to the Potentia.