It is not easy to assign Shepherd's book one category. Most likely it is a combination of historical and crime Gothic Tale. The action jumps between the 19th and the 16th century back and forth and illustrates the terrible consequences that can have the pursuit of money and profit, when the scruples overboard throwing - in this way will create monsters.
Shepherd describes the events gripping and very cleverly weaves fact and fiction. A starring Wapping, the development of the London Docks and its inhabitants - so far you can get here by the way also look at an interesting chapter of London's history.