London 1859-62. A time of great exhibitions, foreign conquests and underground trains. But the era of Victorian marvels is also the time of the Great Stink. With cholera and depravity never far from the headlines, it's not only the sewers that smell bad. Novice detective Campbell Lawless stumbles onto the trail of Berwick Skelton, an elusive revolutionary determined to bring London to its knees through devilish acts of terrorism.