There are a number of excellent authors and books out there in the Fantasy realm, but not many of them have a Christian goal in mind, as did both Tolkien and Lewis. They didn’t preach in their books, but their Christian worldview certainly was revealed in many ways.
May I be so bold as to recommend “The Lost Crown of Colonnade?” Well I am doing just that. I believe there is a larger audience out there for this Teen/YA fantasy novel. It has been read and enjoyed by those from the ages of 12 to 93, and I have people who have read it clamoring for book 2 of The Journeys to Colonnade,” which is a work in progress.