The third Mycroft tale (after Mycroft and Sherlock and Mycroft Holmes) from coauthors Abdul-Jabbar and Waterhouse is another winner. The Victorian setting is well drawn, the dialog rings true, the period details, both factual and fictive, support a labyrinthine plot including race and class distinctions. It all meshes into a fine tale set prior to the Sherlockian stories we know so well. Highly recommended, as are its two predecessors.