Murder in Containment: Doyle and Acton Scotland Yard Mysteries, Book 4 (Unabridged)
2017
Murder in All Honour: Doyle and Acton Mysteries, Book 5 (Unabridged)
2018
Murder in Retribution (The New Scotland Yard Mysteries)
2014
Murder in Hindsight (The New Scotland Yard Mysteries)
2015
Murder in Thrall (The New Scotland Yard Mysteries)
2013
Murder in Shadow: The Doyle and Acton Murder Series, Book 6 (Unabridged)
2018