Dan Brown Boxed Set ( 4 books).

DIGITAL FORTRESS When the National Security Agency’s invincible code-breaking machine encounters a mysterious code it cannot break, it calls in its head cryptographer, Susan Fletcher. What she uncovers sends shock waves through the corridors of power. The NSA is being held hostage – not by guns or bombs, but by a code so complex that if released would cripple U.S. intelligence. DECEPTION POINT When a NASA satellite detects evidence of an astonishingly rare object buried deep in the Arctic ice, the space agency proclaims a much-needed victory…one that has profound implications for U.S. space policy and the impending presidential election. The President dispatches White House Intelligence analyst Rachel Sexton to the Arctic and what she finds once she gets there takes her breath away. ANGELS AND DEMONS A breathtakingly brilliant thriller which catapults the reader through the antiquity of Rome, through sealed crypts, dangerous catacombs, deserted cathedrals and even the most secret vault on earth. The prequel to Dan Brown’s worldwide bestseller, The Da Vinci Code, it introduces the Harvard symbologist Robert Langdon. THE DA VINCI CODE The curator of the Louvre has been murdered. Alongside the body is a series of baffling ciphers. Robert Langdon and a gifted French cryptologist, Sophie Neveu, are stunned to find a trail that leads to the works of Da Vinci – and suggests the answer to a mystery that stretches deep into the vault of history. Unless Landon and Neveu can decipher the labyrinthine code a stunning historical truth will be lost forever. 'Dan Brown has to be one of the best, smartest