Deadly Obsession: DS Mackinnon series prequel
D. S. Butler is the author of the DS Jack Mackinnon series of crime mystery books set in London. For readers who like to read series books in order, here are a couple of lists:Chronological order:1.) Deadly Obsession  2.) Deadly Motive  3.) Deadly Revenge  4.) Deadly Justice (coming soon)Publication order:1.) Deadly Motive  2.) Deadly Revenge  3.) Deadly Obsession (Prequel)  4.) Deadly Justice (Dec 2012)D. S. Butler has a PhD in biochemistry. She has worked in the chemistry department at the University of Oxford and for the NHS, in a hospital pathology laboratory, performing a number of diagnostic tests, including tests for malarial parasites, coagulation and cross-matching blood. Her interest in science seeps into her writing, and her books often include scientific elements in the settings, characters or even the murder methods. D. S. Butler now writes fiction full time. To learn more, you can visit her blog: dsbutlerauthor.wordpress.com or follow her on Twitter - @ds_butler