Sherlock Holmes, Reports from the Dark Side

In Reports From The Dark Side, Sherlock Holmes is confronted by the most diabolical foe he has ever faced, and no one has any idea who he or she is or even that monstrous crimes have been committed. The mastermind of the undetected crime wave is the one who reveals the nature of the crimes, throwing a gauntlet before the startled Holmes. The revelations are not a confession, but the announcement of a planned crime that will rock the British Empire.