An organisation of women who can channel the One Power, headquartered in the White Tower in Tar Valon. The name means 'Servant of All' in the Old Tongue. Since the Breaking of the World, the Aes Sedai have been composed solely of women, as all male channellers went mad from the taint on saidin. They are divided into seven Ajahs - Blue, Brown, Green, Grey, Red, White, and Yellow - each with its own speciality. A secret eighth Ajah, the Black, serves the Shadow. Led by the Amyrlin Seat, the Aes Sedai wield enormous political influence throughout the Westlands, though they are feared and mistrusted by many.