The Return of Sherlock Holmes - The Adventure of the Second Stain

In which a most delicate and pressing diplomatic mystery involving a lost state secret leads Holmes into the shadowy world of international intrigue, espionage, and tragic murder, where every clue demands the utmost discretion and acumen. Through subtle observation and tireless inquiry, Holmes navigates the nuanced motives of those entwined in this high-stakes affair to prevent a looming European calamity.