A lot has been said about this novel and there are many blogs dedicated to it and many will be familiar with the general story line. I think this is a very good allegory, showing that in the modern day we can still have a new perspective on the Christian story.
Just as C.S. Lewis in his writing embodied a new way to see Christianity, this novel opens up the way for our imagination and reinterpretation of facets of the Christian faith. Very well done and I hope he continues with this kind of work.