Notes
Summary: Washington, D.C.: Harvard professor Robert Langdon is summoned to deliver a lecture in the Capitol Building. But within moments of his arrival a disturbing object encoded with five symbols is discovered at the epicentre of the Rotunda. It is an ancient invitation, meant to beckon its recipient towards a world of hidden esoteric wisdom. When Langdon's revered mentor, Peter Solomon, a philanthropist and prominent freemason, is kidnapped, Langdon's only hope of saving his friend is to accept the summons and follow wherever it leads him. Langdon quickly learns that behind the facade of America's most powerful city are unseen chambers, temples and tunnels. Masonic secrets and revelations seem to be leading him to an impossible truth
Sequel to: Angels & demons, and The Da Vinci code
