Cryptonomicon

The novel interweaves World War II and the late 1990s, following Allied codebreakers and battlefield operatives as they try to break enemy communications without revealing that the codes have been cracked. Their work involves deception, cryptography, and the logistical strange-ness of intelligence warfare, while the wartime thread also circles hidden gold and secret ties that are not fully visible until much later.

In the modern thread, descendants of those wartime figures build a data haven and related tech ventures in Southeast Asia, moving through hacker culture, business maneuvering, and questions of secure information exchange. Their efforts are entangled with inherited family history, persistent secrecy, and a mysterious encryption legacy that links the two eras.

As the separate strands accumulate, the book gradually brings family lines, wartime operations, and present-day computer culture into contact. The narrative keeps shifting across places and decades while withholding and then reconnecting information, turning codebreaking, treasure-seeking, and technology into one large, interlocked story.