The heavy curtains of the Paris Opera did not just muffle sound; they seemed to swallow the very soul of anyone who stood behind them. It was 1938, and Europe was a powder keg waiting for a match. But inside the theater, the only war was between the light of the stage and the shadows of the wings.

That night, a bouquet of black roses arrived at her dressing room. No card. Just a cold, metallic weight hidden among the petals—a key to a house on the outskirts of the city and a note written in a sharp, aggressive hand: "The world is ending, Elena. Sing for the dark, or burn with the light."

As the final note echoed, the theater fell into a deafening silence. Then, a single pair of hands clapped from Box 5.

When the lead fainted mid-aria—a sudden, inexplicable sickness—the stage manager shoved Elena forward. The spotlight hit her like a physical blow. She began to sing, her voice a fragile bird taking flight.

Should the be a supernatural figure or a human villain?