Dan Brown's ability to craft a story is undeniable. He takes interesting information (in this case about noetics and Masonic symbology) as his jumping-off place and takes the reader on a journey with dizzying twists and turns.In this story, Robert Langdon is asked to come to Washington DC and bring a small package with him. He thinks he has been asked, via an assistant, by the man who entrusted the package. What he soon finds out is that his friend, Peter Solomon, is in grave danger.Now, as with most books like this there is a major plot twist -- which I must admit that I began to figure out several chapters before it was revealed. However, this did not distract from my enjoyment of the novel.A good read overall.