When the NSA's invincible code-breaking machine - encounters a mysterious code it cannot break, the agency calls in 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 will cripple U.S. intelligence.
When a scientist is found brutally murdered, Harvard professor Robert Langdon is asked to identify the mysterious symbol seared onto the dead man's chest. Realising it must be the work of the Illum...
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