The Lion, the Witch and the Wardrobe

Peter, Susan, Edmund and Lucy Pevensie are siblings who are evacuated from London because of the air raids in World War II. Soon after arriving at their temporary home, the four children discover that a wardrobe in a spare room contains a portal to the magical land of Narnia. There, they become involved in a war against the White Witch, and help restore the true ruler, a lion called Aslan, serving as kings and queens under him for many years before returning to their own world through the wardrobe.

Prince Caspian and the Voyage of the Dawn Treader

The four Pevensie children are waiting at a train station when a magical force pulls them back into Narnia, where they help Prince Caspian overthrow his evil uncle, King Miraz, and take the throne.

Back in England, Edmund and Lucy visit their cousin Eustace Scrubb. All three are sucked into a painting of Prince Caspian's ship, the Dawn Treader. Caspian, who has grown into a young man since they last saw him, explains that he is on a quest to find seven lords who were friends of his late father. The quest requires them to sail through dangerous waters, encountering new islands where things are not what they seem, and finally to sail to the end of the world.

The Silver Chair

Eustace Scrubb, cousin of the Pevensies, is at a boarding school with a girl named Jill Pole. While running away from bullies, they pass through a doorway into Aslan's country. Eustace accidentally falls off a cliff, but is blown to Narnia. Alone, Jill encounters Aslan, who explains that in Narnia, King Caspian's only son and heir, Prince Rilian, disappeared some years earlier. Jill is told to memorise four signs that will lead her and Eustace to Rilian. Aslan sends Jill to Narnia, where she is reunited with Eustace near the castle of Cair Paravel and the two follow the four signs as they search for the lost prince. They finally rescue Rilian and return to Narnia with him shortly before the elderly Caspian dies.