The fictional world at the center of C.S. Lewis’s Chronicles of Narnia is Narnia.
Narnia is a fantasy realm populated by talking animals, mythical beings, humans, and other creatures. The series follows characters from both Narnia and Earth, with several stories involving children who enter the realm through magical means.
Lewis’s seven-book sequence includes The Lion, the Witch and the Wardrobe, Prince Caspian, The Voyage of the Dawn Treader, The Silver Chair, The Horse and His Boy, The Magician’s Nephew, and The Last Battle. The books were published between 1950 and 1956.
Narnia is sometimes mistakenly treated as the title of the whole series, but the official collective title is The Chronicles of Narnia. It is also distinct from Middle-earth, the setting created by Lewis’s friend and fellow author J.R.R. Tolkien.