When I was reading the first few chapters of this fantastic book I really wondered where it was going; the alternate chapters set in different centuries seemed to have no connection. I had read the Maul and the Pear Tree about the Ratcliffe Highway Murders and was intrigued...then suddenly whoosh it all fell into place and the book fairly swept me along with it. It is an ingenious plot, featuring the very first attempts at policing London and employing detective skills. This is also combined with a supernatural thread (I don't know what else to call it). The characters of Horton, Harriott and Billy Ablass are well drawn and convincing. All I can say is read this book you will not be disappointed. I have alread bought 'The Poisoned Island and pre order the third book in this series.