 A five sided bluestone chamber, it is the location for all official Songs and the focus of the Singers' power.Nearby, several treatment cells are located for those awaiting or recovering from Songs, along with stores of the Song Potion used to relax patients.Typically, those awaiting Songs are the ill from the Mainland or the Isle, awaiting treatment for their illness, but disobedient novices may be sent for punishment Songs, and occasionally the Pentangle is used to send a punishment or healing Song via a bluestone trust gift to a distant recipient.