I remember reading Paul Maier's book called A Skeleton in God's Closet years ago. It was a little strange, but pretty good. But I didn't realize that he had written another one entitled More than a Skeleton. And I didn't know until I began reading The Constantine Codex that it had the same characters, ones that I did not remember, nor the story line (at least not enough to link it to this book). However, I pressed on and read and in the long run it did not seem to matter.
(I received this book from Glass Road for review purposes. I received no monetary compensation for this review. All opinions expressed are completely my own.)