David Stuart Davies is an author, playwright and editor. His fiction includes six novels featuring his wartime detective Johnny Hawke and six Sherlock Holmes novels - the latest being Sherlock Holmes & the Devil's Promise (2014). He has also penned a series of dark gritty crime novels set in Yorkshire in the 1980s. The first,Brothers in Blood, appeared in 2013 and the second, Innocent Blood in 2015. He is committee member of the Crime Writers' Association, editing their monthly publication, Red Herrings, and is a Fellow of the Royal Literary Fund.
David is regarded as an authority on Sherlock Holmes and is the author of two Holmes plays, Sherlock Holmes: The Last Act and Sherlock Holmes: The Death and Life, which are available on audio CD. He has written all the Afterwords for all the Collector's Library Holmes volumes as well as those for many of their other titles.