The Lost Symbol by Dan Brown has 528 pages. for The Lost Symbol by Dan Brown.

The Lost Symbol by Dan Brown is Brown's third Robert Langdon thriller. In Brown's first two Langdon books -- Angels & Demons and The Da Vinci Code -- Langdon uncovered conspiracies within the Catholic church that involved art and science. The conspiracy within The Lost Symbol centers on the Masons and takes place in Washington, D.C.