"The Mystery of the Missing Heirloom"

However, just as Holmes thinks he has solved the case, he receives a cryptic message from an anonymous sender, hinting at another suspect. Holmes and Watson re-examine the evidence and discover a surprising twist: Lady Emily herself had staged the theft to frame James Parker and cover up her own involvement in the embezzlement.

Holmes and Watson begin their investigation, starting with interviewing the guests who attended the gala. They discover that James Parker had been acting suspiciously, arguing with Lady Emily over business disagreements. Arthur Windsor, on the other hand, seemed nervous and fidgety during the questioning.