Oh, also: “The ‘christian’ aspect of these books is a bit of a myth.”
Thank you wikipedia, here is the man himself apparently falling for the myth:
“Since Narnia is a world of Talking Beasts, I thought He [Christ] would become a Talking Beast there, as He became a man here. I pictured Him becoming a lion there because (a) the lion is supposed to be the king of beasts; (b) Christ is called “The Lion of Judah” in the Bible; (c) I’d been having strange dreams about lions when I began writing the work. The whole series works out like this.
The Magician’s Nephew tells the Creation and how evil entered Narnia.
The Lion etc the Crucifixion and Resurrection.
Prince Caspian restoration of the true religion after corruption.
The Horse and His Boy the calling and conversion of a heathen.
The Voyage of the “Dawn Treader” the spiritual life (especially in Reepicheep).
The Silver Chair the continuing war with the powers of darkness
The Last Battle the coming of the Antichrist (the Ape), the end of the world and the Last Judgement”