A gothic treasure chest shaped like a miniature coffin, crafted from dark, decayed wood with iron reinforcements. The lock is an intricate silver skull with hollow eyes that glow faintly. When opened, a ghostly mist seeps out, and eerie whispers echo from within. The interior is lined with deep violet velvet, stained with old blood marks. 3D, ultra-detailed, gothic horror textures, cinematic lighting, 4K render.