I'll wait until more people have read this to go into more detail, but suffice it to say that there's an ominous baddie, a pretty researcher lady, and the regular cast of characters familiar to Brown fans on the run in this thriller set in D.C. Professor Langdon is on the trail of ancient Masonic lore in the attempt to free an old friend from the clutches of evil. Say what you will about Brown's formulaic writing style - the man knows how to make every chapter a cliffhanger! When you're done, you will definitely feel like a symbologist - the whole world is an open book, if you just know how to read it :)