Londun, Anglund, 1864. Twelve-year-old Edward Sax has just become a murderer. The criminal underworld he enters is full of mysterious characters, none cutting a greater dash than Osric Fingerbone, alchemist and expert killer. Edward's sister, Eleanor, has been sold into captivity. Edward must search for her, from city society, to the nightmarish world of tunnels and labs that lie beneath Londun's streets. This is a world where the Anglish Empire holds sway. Londun is it's dark heart - a dark heart full of knives and alchemy and some other seriously weird stuff that would, frankly, be ungentlemanly even to mention...