Cerberus, the legendary three-headed guardian of the underworld, emerges from the depths of a shadowy, mystical realm. Each of its three massive heads is distinct, yet all radiate an aura of primal power and menace. The central head bears fiery orange eyes that glow like molten lava, its teeth gleaming with an almost metallic sheen. The left head has icy, pale blue eyes, frost gathering on its fur and breath forming visible clouds in the cold air. The right head, wreathed in shadows, has pitch-black eyes that seem to absorb light, exuding an aura of impenetrable mystery. The beast's fur is a blend of obsidian and crimson, with glowing streaks running along its muscular body, as though molten rivers flow beneath its skin. Its enormous paws leave smoldering prints in the ground, and jagged, glowing chains dangle loosely around its necks, as if it once broke free from an ancient imprisonment. The spiked collar encircling each neck glows faintly with enchanted runes, hinting at powerful magic that can barely contain its might. Cerberus’s tails writhe like serpents, each tipped with a flaming, otherworldly light, illuminating its fearsome form in the surrounding darkness. Its growls resonate deeply, a mix of thunder and a chilling wind, echoing across the ethereal landscape. Around its feet, the ground cracks and smolders, while ghostly figures and glowing spirits seem drawn to its presence, orbiting it like moths to a deadly flame. The realm surrounding Cerberus reflects its terrifying beauty. A swirling mist filled with faint, flickering lights moves like a river, obscuring jagged rocks and ancient ruins. The sky is an ominous mix of storm clouds and eerie, swirling auroras, casting the scene in hues of violet and crimson. Cerberus stands tall, an eternal guardian of secrets and forbidden places, its presence a haunting yet majestic reminder of the boundaries between worlds.