“Science-fiction author Neal Stephenson’s latest 800-page dispatch, The Confusion, arrived in stores this week. But Stephenson fans hoping for another brain-wracking, cryptographic puzzle to solve will find a surprise instead: A central scene in the book provides a long, detailed description of the mechanics of 17th-century bills of exchange. Pivotal themes in the book involve the emergence of a cashless market at Lyon, France, and Sir Isaac Newton’s 30-year stint at England’s national mint.

The Confusion, which consists of two 400-page novels interleaved (literally ‘con-fused’) with one another, is the second of three volumes in The Baroque Cycle, a nearly 3,000-page opus that fictionalizes the exploits of Newton and the Royal Society of scientists to which he belonged.

In an interview with Wired News, Stephenson, who rose to fame on cyberpunk-themed novels including Snow Crash and Cryptonomicon, said his interest in money and markets dates back to 1994, a time when crypto hackers and Citicorp/Citibank CEO Walter Wriston were equally likely to expound on the concept of money as an information technology.”