Shehyn is an older Adem woman and the head of the school in Haert to which Tempi belongs, the path of the sword tree. She has a deep understanding of the Lethani, is a marvellous teacher, and remains an excellent fighter despite her age. She assigns Vashet to determine if Kvothe is of the Lethani and worthy of being taught the Ketan. There is speculation that "Ferule" and "Alaxel" are the True Names of Cinder and Haliax.