Welcome to the forums!!! I know how it is to read Lewis' works. They take you in a direction you didn't know existed, but somehow you know it's the right one. That's the best I can describe them. I also want to encourage you to read the rest of the Chronicles. Each book doesn't take long to read but each is packed with such treasure that it is very hard to read them only once.As a new member I must post here.. Well, let's do it, though I'm very shy.
I have been a fan of Tolkien for five years, and that is how I learned about CS Lewis. It is only this year that I became more interested in Lewis than in Tolkien. I must confess, though, that I have read only one book from The Chronicles of Narnia, namely The Lion, the witch and the wardrobe. I know some fragments of Prince Caspian, but not the entire book. Of the few books by Lewis which I read, the one I liked best is Till We Have Faces which is now my favourite book, and it seems to me that I enjoyed it even more than my previous favourite, Tolkien's The Lord of the Rings. Of course I intend to read the entire Chronicles in the future, but for now, I have seen the new Disney films as well as BBC version. I am also very interested in Lewis's scholarly work.
And there are lots of ringers around here too. I personally like the books better than the films.