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 Chronicles of Narnia by arguing that the astrological associations grew in the writing: A quantitative analysis on the imagery in the different books of "The Chronicles" gives mixed support to Ward's thesis: "The Voyage of the Dawn Treader", "The Silver Chair", "The Horse and His Boy", and "The Magician's Nephew" do indeed employ concepts associated with, respectively, Sol, Luna, Mercury, and Venus, far more often than chance would predict, but "The Lion, the Witch, and the Wardrobe", "Prince Caspian", and "The Last Battle" fall short of statistical correlation with their proposed planets. George MacDonald's "Phantastes" (1858) influenced the structure and setting of "The