The Lost Symbol

Currently, I'm reading the Lost Symbol Written by Dan Brown, who was the also the writer of The Da Vince Code. 

The plot of the story is really intriguing, It was about a Harvard Symbolist Robert Longman who was summoned to The Capitol to find the key to the ancient mysteries. His old friend Peter Solomon was kidnapped by some guy. But, in this novel, there is something about Mason I could not fully understand.
Is there anyone who has read this novel or read my article. Plz let me know that I'm not alone. THX

(Minor corrections.Well done! :D)