Let's rewind the time to one month ago.
When the Fire Sect Master shot down the spirit dragon, Victor, and Ye Lingxuan.
He did not stop and directly activated a flying technique, flying at supersonic speed toward the exit of the mystic realm!
At first, his journey was smooth.
At that time, although the clouds in the sky were gathering, it did not greatly affect his vision.
But very quickly, after a few minutes, the fog surged up like a swarm of bees.
Soon, the Fire Sect Master realized that his vision was unable to go beyond 20 meters.
Then, it was ten meters.
Five meters.
...
In the end, he couldn't even see his five fingers when he stretched them out before him.
Moreover, being unable to see the direction wasn't the most terrifying thing.
The most terrifying thing was that the Fire Sect Master soon discovered that the thick fog was actually continuously devouring his spiritual power.