The Crystal Chamber was the most formal meeting place of Comyn Council. It was located in one of the highest turrets of Comyn Castle. The Crystal Chamber was fashioned of translucent stone, cut in prisms which flashed like the light of the sun. Being in the chamber was like being inside a rainbow. The chamber was octagonal, with tiers of seats. Each of the Comyn Domains sat under their own emblem and banner.
Every member of a family holding Council-right, and known to have laran has a right to appear and speak in Council. The Keeper of Arilinn also had this right.
Every Comyn son must be presented to the Council in the Crystal Chamber to ensure that he has no hidden defect or deformity.