A wide-angle, cinematic view from the entrance of an ancient underground Dark Brotherhood sanctuary. A long central stone path leading towards a distant circular stained glass window and glowing altar. Deep blue waterfalls cascading down jagged cave walls on both sides. Thick mystical fog on the floor. Tall stalagmites and stone pillars illuminated by flickering orange fire basins and clusters of candles on stone pedestals. Red banners. Eerie, dark fantasy atmosphere, hyper-detailed textures, 8k, digital painting style, Elder Scrolls aesthetic.