Shi Mu and Yu Yi exchanged a few random sentences for a moment. After that, they didn't stay there for long. Shi Mu took out the Green-Winged flying carriage after cleaning up the battlefield. Then, he hurried in the direction of the Red Flame City along with Yu Yi.
However, they hadn't covered a long distance when they saw that the sky had suddenly dimmed.
"What's wrong?" Both Shi Mu and Yu Yi were stunned.
"Shi Tou, look over there!" Cai shouted from Shi Mu's shoulder.
The two of them immediately turned their gazes towards a mountain range that wasn't far from them.
A bright-red mist emerged from that volcanic mountain and floated outwards. It immediately spread all over the place.
The red mist looked a little slow initially. But, it was so fast that it pervaded the air in front of these two men in an instant.
Shi Mu's face revealed a surprised look as he saw this red mist.