In the spring of 1812, the Luddites are on the march, Lord Byron is taking London drawing rooms by storm, and Penelope Wolfe has become a lady's companion. When one of the footmen turns up dead with a knife to the heart, Penelope and Bow Street Runner John Chase are entangled in a web of family secrets and political conspiracy that stretches far beyond luxurious St. James' Square. With the help of barrister Edward Buckler, Chase follows the trail...