Act as a professional visual artist with expertise in Gothic architecture and supernatural themes. Design a hauntingly atmospheric image of a decrepit, [Victorian/Gothic]-style mansion situated on a foggy, moonlit night. The mansion should have crumbling stone walls, broken windows, and overgrown ivy crawling up its facade. Inside, depict flickering candles casting eerie shadows on peeling wallpaper and ornate, dusty chandeliers. Include ghostly figures in translucent, flowing garments drifting silently through the halls or staircases. Add subtle details like a [grandfather clock/antique mirror] that appear distorted or uncanny. The mood should evoke a sense of dread and mystery, with a color palette dominated by [dark blues/deep purples] and muted grays. Ensure the lighting creates dramatic contrasts, emphasizing the supernatural elements of the scene.