Robert Langdon

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When the NSA's invincible code-breaking machine encounters a mysterious code it cannot break, the agency calls its head cryptographer, Susan Fletcher, a brilliant and beautiful mathematician. 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 ingeniously complex that if released it would cripple U.S. intelligence.

Caught in an accelerating tempest of secrecy and lies, Susan Fletcher battles to save the agency she believes in. Betrayed on all sides, she finds herself fighting not only for her country but for her life, and in the end, for the life of the man she loves.

From the underground hallways of power to the skyscrapers of Tokyo to the towering cathedrals of Spain, a desperate race unfolds. It is a battle for survival--a crucial bid to destroy a creation of inconceivable genius...an impregnable code-writing formula that threatens to obliterate the post-cold war balance of power. Forever.

A shocking scientific discovery.
A conspiracy of staggering brilliance.
A thriller unlike any you've ever read....

When a new NASA satellite spots evidence of an astonishingly rare object buried deep in the Arctic ice, the floundering space agency proclaims a much-needed victory… a victory that has profound implications for U.S. space policy and the impending presidential election.

With the Oval Office in the balance, the President dispatches White House Intelligence analyst Rachel Sexton to the Milne Ice Shelf to verify the authenticity of the find. Accompanied by a team of experts, including the charismatic academic Michael Tolland, Rachel uncovers the unthinkable—evidence of scientific trickery—a bold deception that threatens to plunge the world into controversy.

But before Rachel can contact the President, she and Michael are attacked by a deadly task force…a private team of assassins controlled by a mysterious powerbroker who will stop at nothing to hide the truth. Fleeing for their lives in an environment as desolate as it is lethal, they possess only one hope, to find out who is behind this masterful ploy. The truth, they will learn, is the most shocking deception of all…