Chapter 236
Indoors.
Jiang Ning pulled out a piece of glowing charcoal.
According to what he knew, glowing charcoal was roughly seven hundred degrees.
Inside the bellows furnace of an ironworks, it could reach nine hundred to a thousand degrees.
In an oxygen-rich environment, it could even surpass a thousand degrees.
That was why charcoal was used as fuel for iron smelting: this fuel burned at an extremely high temperature.
Then, he picked up the glowing charcoal with his bare hand.
"It really isn't hot!" Looking at the charcoal in his hand, red as a jujube, a trace of surprise surfaced in his eyes.
The charcoal, already burning red, felt like warm jade in his hand.
There was only a faint warmth, without the slightest burning pain.
After playing with the charcoal for a while, its temperature gradually dropped. Jiang Ning turned his gaze back to the brazier before him.
The charcoal in the brazier was burning fully, and the fire blazed fiercely.
"Let's try again!"
Jiang Ning thought to himself.
Then—
He lowered his head and blew into the charcoal brazier.
Crackle—
Sparks instantly burst from the brazier, and the flames grew even fiercer.
Watching the flames rise, Jiang Ning nodded in satisfaction.
Then he extended a finger into the flames released by the fully burning charcoal.
The next moment—
He witnessed something miraculous.
When his finger touched the flames, it seemed as though an invisible garment covered his flesh. The flames always remained separated from his body by a tiny gap.
At the same time, he felt not the slightest burning sensation, only a warm and comfortable touch.
It was as though his finger had not entered flames, but warm water.
Then Jiang Ning moved his finger from side to side.
Wherever his finger passed, the flames immediately