The Silver Chair their quest. When the young man is tied to his chair, his "ravings" seem instead to indicate desperation to escape an enchanted captivity. After several threats, the youth finally begs the three to release him in the name of Aslan. Recognizing this as the fourth Sign, they hesitantly do so. The young man immediately destroys the silver chair. Free from enchantment, he thanks them and declares that he is the vanished Prince Rilian, kept underground by the Lady of the Green Kirtle as part of her plot to conquer Narnia. The Green Lady returns and tries to bewitch them all
The Black Magician and failing, to protect the city from the Sachakans. Enlisting the help of the Thieves and slum-dwellers, Akkarin and Sonea defeat the Ichani. In their final battle, however, Akkarin is fatally injured by Kariko and dies by giving all his power to Sonea,while fighting with the Ichani. Sonea is left alone bearing his child. Since Sonea is the only magician who has the knowledge of the black magic, she becomes the Black Magician of the Guild. She also sets up a hospice to help the people living in the slums. Canavan notes that inspiration for her writing comes from "books