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: Prince Caspian "Prince Caspian" has over 1,500 special effects shots, more than "The Lion, the Witch and the Wardrobe"<nowiki>'</nowiki>s 800 effects shots, yet the film had less time to complete them. The scale of special effects led Andrew Adamson to base production in the UK, to take advantage of new tax credits. Therefore, it legally qualifies as a British film. This also meant the director only had to walk five minutes from the editing room to supervise the effects. British visual effects companies the Moving Picture Company and Framestore CFC were hired to create the visual effects alongside Weta Digital. Framestore worked