FREE: Digital Fortress by Dan Brown

The listing, Digital Fortress by Dan Brown has ended.

Paperback. Well read. Outside is in OK condition but the inside is still in really good condition. 525 pages.

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 also for her life, and in the end, for the life of the man she loves.