C. S. Lewis and Theology

I have finished the fourth book in the Narnia series, Prince Caspian, and have had just about as much Thomas-the-Tank-Engine storytelling as I can stand. However, each book seems to be introducing new tidbits of C. S. Lewis' amateur theology. We have moved from the crudely told resurrection "analogy" to a story of Jesus (Aslan) forcing events by pretending to attack horses and riders to the previously visible Savior being invisible to his greatest supporters (and friends) because of their unfaith or something (the reason is not completely clear). I have developed a morbid curiosity to see what comes next. What will happen in the last book, ominously entitled, The Last Battle? I'm all a-quiver... or should I be dreading his clunky prose and awkward proselytizing?

It remains to be seen if all this will convince me to make another attempt at Mere Christianity, this time with the detachment necessary to prevent me from screaming and throwing the book across the room.