Thought you might find this interview interesting. Joe Rigney, author of Live Like a Narnian, is being interviewed, and discusses a number of favorite topics, including Puddleglum, Emeth and Bulverism, within the broader context of the proper place of magic in literature:
He also makes an interesting point that Narnia is much more like the OT than the NT, at least in that Aslan’s people are, broadly speaking, defined by nationality, and we don’t see any hint of a Great Commission there (though we see throughout the OT the expectation that all the world will know God, we don’t see a command to evangelize as we do in the NT).