Here's that puzzle I was talking about
:
(there's music there)
publisher's puzzle
it gives clues about the next Dan Brown Book featuring Robert Langdon. Use Google (or PM me) if you get stuck.
The next book is about Spoiler:
the CIA, Masons, cryptography, and the Great Seal of the U.S.
at the end, there's a
link to the original DaVinci Code game that was put up prior to the release of that book.