The moon cast a silver glow on St. Agatha's Mansion, as guests mingled in the opulence. A bellow of laughter bounced off the marble foyer before echoing through dark hallways. Detective Marcus Donavan stepped inside, his expression somber, eyes scanning. Mr. Montague, host of the extravagant masquerade, unveiled the masquerade's centerpiece—a priceless, stolen painting. "Drink and dine," he announced. Laughter rippled, but Marcus sensed hidden tensions. He was led to a red-velvet draped study. There, he discovered a man, Lord Oswald, slumped on an ornate chair, a knife buried deep in his chest. Marcus's brow furrowed—the masked ball had turned into a real life whodunit.