The fourth volume of the Mirror series. With a mighty sword cleaving the heavens, the world is brought to heel. Along the road to the heart of the imperial capital, sinister schemes and shifting tides abound, and Bai Ying finally awakens. At the highest point of Yunhuang, the ancient Emperor and Empress set off hand in hand for Guixu, while the Sea Emperor Su Mo falls into a deep sleep. A mysterious and terrifying power causes Po Jun to erupt ahead of time. After witnessing his family members die one after another, Yun Huan chooses the final path in his desperate plight: he enters into a contract with the God of Destruction, gaining unprecedented power, then rides a Garuda golden-winged bird back to the imperial capital, seizes control of the Cangliu Empire, and reigns over Yunhuang. The power to destroy the world draws a massive blood-red cross across the land of Yunhuang. The Crown Prince of Kong Sang joins forces with the Dragon God to battle Po Jun, while the War of Heaven-Cleaving sweeps everyone along toward an unknown and wholly new history...