The Lost Symbol

The Lost Symbol is a novel written by Dan Brown and published by Doubleday. It is the sequel to his 2003 novel, The Da Vinci Code. The publisher announced in the summer of 2009 that the book would be released on September 15th, 2009. The novel again features the fictional, mystery-solving Harvard symbologist Robert Langdon. It is set in Washington D.C., and the story takes place over a 12-hour period. The Langdon character also appeared in Browns 2000 novel, Angels & Demons.