London, 1811. The twisting streets of riverside Wapping hold many an untold sin. Bounded by the Ratcliffe Highway to the north and the modern wonders of the Dock to the south, shameful secrets are largely hidden by the noise and glory of Trade. But two families have fallen victim to foul murder, and a terrified populace calls for justice. John Harriott, magistrate of the new Thames River Police Office, must deliver revenge up to them and his only hope of doing so is Charles Horton, Harriot's senior officer. Harriott only recently came up with a word to describe what it is that Horton does. It is detection.
