In 1695, Isaac Newton, already renowned as the greatest mind of his age, made a surprising career change. He left quiet Cambridge, where he had lived for 30 years and made his earth-shattering discoveries, and moved to London to take up the post of Warden of His Majestys Mint.
Newton was preceded to the city by a genius of another kind, the budding criminal William Chaloner. Thanks to his preternatural skills as a counterfeiter, Chaloner was rapidly rising in London's highly competitive underworld, at a time when organized law enforcement was all but unknown and money in the modern sense was just coming into being. Then he crossed paths with the formidable new warden.