In "The Harlequin Opal," Fergus Hume masterfully crafts a detective novel that intricately intertwines suspense and gothic elements within a vibrant Victorian London backdrop. The narrative is propelled by the mysterious theft of a unique gem, the Harlequin Opal, which unveils a world of crime, intrigue, and moral ambiguity. Hume'Äôs prose is characterized by its vivid descriptions and a keen psyc...