The temperature in the cave soared because of the flames, and the rocks on the mountain wall turned red under the high temperature.
In the blink of an eye, the invisible number one took a few steps back and reappeared about two to three meters away from the flames. He looked flustered and frightened.
The flame climbed up the rock wall and burned. Some of the fine ores on the surface were melted by the high temperature, turning into fiery red molten iron, dripping down.
With a 'plop', it landed on the ground, splashing large and small potholes on the ground, giving off bursts of hot smoke and a burnt smell.
Number one's figure quickly retreated, his face red from the flames. His hair was curled from the high temperature, and his clothes had big and small holes in them. Some places were on fire, as if they were about to catch fire.
