Dan Brown book: The Secret of Secrets is no Da Vinci Code. Too much has changed.

While it’s impossible to pity a man who’s sold upward of 80 million copies of a single book, it must be acknowledged that Dan Brown has found it challenging to follow his own breakthrough act, 2003’s The Da Vinci Code . Brown’s latest attempt, The Secret of Secrets , follows the pattern of his previous novels featuring Robert Langdon, the hero of The Da Vinci Code and four other thrillers that have followed the Harvard professor of religious symbology (a nonexistent academic discipline, as many, many critics have pointed out) as he races across the world, decoding secret messages embedded in Renaissance artworks alluding to world-changing secrets that have been covered up for centuries. Sooner or later, though, a guy runs out of ancient secrets to unearth, and so, this time aroun