The Silver Chair, the sixth book in C.S. Lewis's Chronicles of Narnia, follows Eustace Scrubb and his schoolmate Jill Pole as they are summoned to Narnia by Aslan. Tasked with rescuing Prince Rilian—King Caspian's lost son—they must follow four signs given by Aslan. Accompanied by the gloomy yet loyal Marsh-wiggle Puddleglum, the children brave harsh wastelands, encounter treacherous giants, and descend into the underworld ruled by the enchantress, the Lady of the Green Kirtle. There they find Rilian bound to a silver chair under a wicked spell. Through courage and faith, they break the enchantment, defeat the witch, and restore the rightful heir.