I really enjoyed the radio plays about Narnia, although I felt very guilty about liking them, because of my high minded political beliefs. I thought the play for "the last battle" was a thinly veiled attack on the Church of England - not a bad thing. Anyway, what do I like about the Narnia novels? The swords of course! I am a sucker for a sharp blade.
I stupidly missed the radio play for one of the books: "The Magician's Nephew (1955)" It is not important, but I will not be happy until I have completed the series.