The Capitol Building, Washington DC: Harvard Symbologist Robert Langdon Believes He Is Here To Give A Lecture. He Is Wrong. Within Minutes Of His Arrival, A Shocking Object Is Discovered. It Is A Gruesome Invitation Into An Ancient World Of Hidden Wisdom.When Langdons Mentor, Peter Solomon - Prominent Mason And Philanthropist - Is Kidnapped, Langdon Realizes That His Only Hope Of Saving His Friend's Life Is To Accept This Mysterious Summons.It Is To Take Him On A Breathless Chase Through Washington's Dark History. All That Was Familiar Is Changed Into A Shadowy, Mythical World In Which Masonic Secrets And Never-before-seen Revelations Seem To Be Leading Him To A Single Impossible And Inconceivable Truth.