Eldritch altar, mysterious ritual scene, ancient tome bound in black leather, adorned with cryptic symbols, eerie candles flickering, dimly lit, crimson velvet drapes, intricate carvings on stone walls, twisted vines crawling up pillars, macabre artifacts scattered around, glowing runes etched into the floor, dark mist swirling, otherworldly ambiance, haunting shadows, cinematic lighting, gothic architecture.