Really enjoyed this book. I rarely read Jack the Ripper fiction, preferring to read factual books relating to the case, but I have to say, this book drew me in from the first page. It's a mix between an historical whodunit and a sci-fi thriller, the twists and turns keeping the reader spellbound as the story weaves between modern day Chicago and Whitechapel, London 1888. Time traveller Carl Axford is sent back in time on a mission to discover who the killer was. He finds his answers but gets more than he bargained for nobody is quite what they seem... Highly recommend, and I'm hoping very much there is a book no.2!