If you are a Sherlock Holmes Fan, this book is definitely worth your attention. Not only is it true to style, it is a grand plot that keeps you interested and rewarded for your interest.
I recommend you read all of Mr Millet’s Holmes novels. Although, if possible, read them in order. Even if you don’t though, as I have not, they are still exceptional.
The narration is also first rate. All characters have varied and consistent voices throughout all the novels and add much to the enjoyment of the story.