I was curious. I had to read it for myself. You may have to do the same, but this novel is not very good. It shares the setting and the tone of "A Canticle for Leibowitz" but it lacks cohesion, tells a rather pointless story, doesn't contribute much food for thought, and has a bewildering array of shallow characters that drift into and out of the story and serve very little purpose other than to confuse the reader. I prayed for an editor, because this book reads like the the author's notes about a novel.
Those looking for a "sequel" to A CANTICLE FOR LEIBOWITZ will be disappointed. This is a quite different sort of book, in a different style, written from a different sort of viewpoint.