Decoded tells the story of Rong Jinzhwen, one of the great code-breakers in the world. A semi-autistic mathematical genius, Jinzhen is recruited to the cryptography department of China's secret services, Unit 701, where he is assigned the task of breaking the elusive 'Code Purple'. Jinzhen rises through the ranks to eventually become China's greatest and most celebrated code-breaker; until he makes a mistake. Then begins his descent through the unfathomable darkness of the world of cryptology into madness. Decoded was an immediate success when it was published in 2002 in China and has become an international bestseller. With the pacing of a literary crime thriller, Mai Jia's masterpiece also combines elements of historical fiction and state espionage. Taking place in the shadowy world of Chinese secret security, where Mai Jia worked for decades, it introduces us to a place that is unfamiliar, intriguing and authentic.