Hunting down highwaymen was not the usual preserve of a Bow Street Runner. As the most resourceful of this elite band of investigators, Matthew Hawkwood was surprised to be assigned the case - even if it did involve the murder and mutilation of a naval courier. From the squalor of St Giles Rookery, London's notorious den of thieves and cutthroats, to the brightly lit salons of the aristocracy and the heart of the British government, Hawkwood relentlessly pursues his quarry. As the case unfolds and another body is discovered on the banks of the Thames, the true agenda begins to emerge. And only Hawkwood can stop a dastardly plot that will end British mastery of the seas forever.