Bab 1994: Heroic Sacrifice

When Zhang Tie arrived at Xuanyuan hill, he found that the entire city had been covered with blood and battle flames...

The flames that rushed into the sky from Xuanyuan hill brightened the entire city. It was full of battle qi smokes and tornadoes in the night sky within 6,000 miles. The most tragic scene facing humans and Taixia Country in the 3rd holy war was undergoing. 

Over one night, the country's land sunk; the heavens and the earth were toppled over and numerous cities deteriorated into purgatories.

...

The battle planes of Zodiac Guards were hovering above Xuanyuan Hill. Those air cavalries were attacking demon knights tirelessly and desperately in vain. The inflammable bolts that were fired by battle planes left battle flames in the sky, which implied the final moments of air cavalries at the risk of their lives.