Which Narnia book tells the story of how that world was created?

The Narnia book that tells how that world was created is The Magician’s Nephew. C.S. Lewis published it in 1955, as the sixth Narnia book by publication order but the first in the series’ internal chronology.

The novel follows Digory Kirke and Polly Plummer, two children from London. Their experiments with magical rings lead them through the Wood between the Worlds, where they encounter Jadis and witness Aslan singing Narnia into existence.

The story also explains the origin of the wardrobe used in The Lion, the Witch and the Wardrobe. Digory’s history with his seriously ill mother gives the novel an emotional thread beyond its fantasy adventure, while the creation scene establishes Narnia’s cosmic framework.

Readers often confuse publication order with chronological order. The Magician’s Nephew was not the first Narnia book released, but it is the earliest story in the fictional timeline. Lewis wrote it after several other Narnia adventures had already appeared.