Mr. Cornwell,
Let me begin with saying how much I enjoy your books. They are great sources of knowledge about history, written with actual history in mind mixed with a dash or two of fiction.
Recently, I learned of the American Stonehenge, http://www.stonehengeusa.com/, and found their theories interesting. I wonder what your thoughts are, in light of the research you did to write your book.
Regards
Rob Dombowsky