I've finished Dan Brown's The Lost Symbol. It is very good! It's typical Dan Brown- Robert Langdon caught in a bizarre mystery that he unfolds and solves through his expertise in symbology. This one is no different- it takes place in our nation's capitol, Washington D.C. and it is filled with the mysteries revolving around Freemasonry.
It is deep and fast paced. I can't speak to the accuracies of the Freemason details because I'm not a freemason. There are parts of the story that are pretty heavy in concept and some of it spells out hours after the original mystery is solved which I thought extended the story past it's climax.
But it's a good read. I really enjoyed it and the BSU says she is picking it up next. It's a brain teaser and twister and I recommend it!