Sir Robert Carey has just foiled a double plot against King James. He rides for Leith hunting the would-be assassin now identified as Joachim Hochstetter, also known as Jonathan Hepburn. Has he taken ship for the Continent, or ridden nearly 130 miles south and west into England? There at Keswick, his family, originally from Augsburg, runs a mining operation that pays a royalty to Queen Elizabeth in gold. It's ruled by the widow Radagunda Hochstetter,...