Prince Caspian his own son was born. Prince Caspian, until that point ignorant of his uncle's deeds, escaped from Miraz's Castle with the aid of his tutor Doctor Cornelius, who schooled him in the lore of Old Narnia, and gave him Queen Susan's horn. Caspian fled into the forest but was knocked unconscious when his horse bolted. He awoke in the den of a Talking Badger, Trufflehunter, and two dwarfs, Nikabrik and Trumpkin, who accepted Caspian as their king. The badger and dwarves took Caspian to meet many creatures of Old Narnia. During a midnight council on Dancing Lawn, Doctor Cornelius arrived
The Silver Chair earthmen, who take them aboard a boat across the subterranean Sunless Sea to the city ruled by the Lady of the Green Kirtle. She herself is away, but her protégé, a young man, greets the travellers pleasantly. He explains that he suffers from nightly psychotic episodes, and during these episodes he must, by the Lady's orders, be bound to a silver chair; for if he is released, he will turn into a deadly green serpent and kill everyone in sight. The three travellers determine to witness the youth in his torment, as they sense it could be the key to