In The Lost Symbol, Robert Langdon has an adventure with the concepts of Freemasonry in Washington D.C. Tricked into visiting the nation's Capitol, Robert Langdon spends twelve hours racing through the monuments and buildings of the USA's forefathers, searching for the truth about the secret society of the Masons. Behind new doors lie secrets that promise to change the way people view science and politics, now threatened by Zachary Solomon, the renegade, estranged son of Robert Langdon's friend, Peter Solomon, who has himself been kidnapped by Zachary, now going by the name Mal'akh. Robert Langdon is the last line of defense. With help from Katherine Solomon (Peter's younger sister), Warren Bellamy (the Architect of the Capitol) and Inoue Sato (the director of the Office of Security).
