It is difficult to credit that Mr Rubin has ever read any of the Conan Doyle Sherlock tales. None of the four main characters speak or behave with any correspondence to their originals, the style is lacking any insight into the original settings or style, and the plot is grotesquely absurd. Green spitting spiders! Wrong genre altogether.
The concept, of Holmes and Moriarty brought by circumstances to work together, is very promising. But the outcome fails utterly.
Dreadful book. Avoid