I found the concept of using Irene Adler as a rival of Sherlock Holmes quite intriguing to begin with. In this the third of Carole Nelson Douglas's adventures "The Woman" investigates a case that not only involves Sherlock Holmes's investigation of the lost Naval Treaty, but also explains the background of Colonel Sebastian Moran.
While the Watson pastiches are remarkably well written I found the bulk of the narrative by Irene's companion Penelope Huxleigh rather irritating as the main charachters continually witter on smugly about how much better a detective Irene is than Holmes, and far too much time is spent on describing Irene's and Penelope's outfitS. There was far too much use of coincidence in the story and sadly the final denoument was very predictable. The author also displays a woeful lack of knowledge about London's geography and the complexities of the UK's pre-decimal coinage.