Sure enough, people die for money, birds die for food, and Ye Fan is no different.

Just when Ye Fan thought that he had discovered the loophole in the spiritual fire and was about to make a big deal and practice the Chestnut Condensing Pill Technique in the Fire, a burning pain suddenly came, Ye Fan screamed, and quickly withdrew his hands in shock.

"Ah......h

Ye Fan's expression was painful, his expression was almost distorted, and his screams were even more terrifying.

When I raised my hand, I saw that the skin on the palm of my hand had been burned red, and there was a burning stinging pain.

"Who said that the temperature in the flame is relatively low?Physics teacher, you tell me again, I won't kill you!" Ye Fan said through gritted teeth.

When he approached the surface of the flame before, there was only an obvious burning sensation, which didn't really hurt him, but when he got to the inside of the flame, before he could react, his hands had already been burned.

Obviously, the temperature inside the flame is higher than the surface temperature of the flame!

In fact, there is nothing wrong with what the textbooks say in the world, in the world, the temperature inside the flame is indeed lower than the surface of the flame, and it is indeed because the combustion is incomplete.

Then why is it not suitable when you get to the hidden door?

That's because of Reiki!

In the hidden door, there is enough spiritual energy to help all flames burn, so there is no such thing as incomplete burning.

Ye Fan endured the pain and took out two high-grade healing pills and took them.

However, this high-grade healing pill is mainly for internal injuries, and the treatment effect on external burns is not very good, so even after Ye Fan took the high-grade healing pill, the pain of the burns on his palms still did not ease much.

At this time, Ye Fan was like a deflated ball, and he thought that he could quickly master the Ning Dan technique of taking chestnuts from the fire, but now it seems that I am afraid that without half a year of exploration, I am afraid that it will not be successful.

"Alas...... Forget it, when the limelight of the Three Corpse Poison Pill is over, please ask Elder Guan to refine some pills for me to treat flame burns, and then it is not too late to practice this Burning Pill technique of taking chestnuts from the fire. Ye Fan said to himself secretly.

However, at this moment, a cool cold current suddenly emerged from Ye Fan's body, converging from his limbs to his burned hands.

In an instant, the burning pain disappeared.

"What's going on?What is that cold snap?Where did it come from?" Ye Fan was extremely surprised, looking very confused.

However, at this time, I saw that the burned parts of my hands began to scab.

"It's scabbed?" Ye Fan was stunned again, this scab means that the injury is more than half better, and then just wait for it to shed naturally.

"This ...... What the hell is going on?" Ye Fan looked confused and puzzled.

"Could it be that the high-grade healing pill has come into play?"

"No, definitely not!" Ye Fan said with certainty, because he had also taken the Advanced Healing Pill when he was injured before, and the Advanced Healing Pill did not have a cold snap.

"It's not a high-level healing pill, what could it be?"

Just as Ye Fan hesitated, he saw that the scabs on his hands began to shed little by little.

"This ......"

Ye Fan's face was full of shock and disbelief, what the hell is going on?

After a little effort, the scabs all peeled off, revealing a pair of flawless hands, and I saw that the skin of Ye Fan's hands was crystal clear, without any traces of burning.

"God!" Ye Fan was surprised, he was still worried about the injury of his hands just now, but he didn't expect that his kung fu would be better in the blink of an eye.

It's just that Ye Fan hasn't figured it out until now.

Stunned, Ye Fan looked at the burning spiritual fire and muttered, "Do you want to practice again?"

But when he thought of the burning pain, Ye Fan was a little afraid.

However, Ye Fan was full of curiosity about the mysterious cold snap.

After weighing it again, Ye Fan decided to try again, anyway, he had already hurt once, and he didn't care about hurting again.

Immediately, I saw Ye Fan take a deep breath and stretch his hands into the spiritual fire again.

"Huh...... ......"

It was obvious that he could hear the sound of the spiritual fire burning his palm, but Ye Fan didn't feel the pain of burning, or just a slight burning sensation.

"What's the matter, why are my hands suddenly not afraid of spiritual fire?" Ye Fan looked stunned, really puzzled.

"Could it be because of the cold snap before?"

"Yes, it must be it, otherwise there is no reason not to be afraid of spiritual fire in your hands!" Ye Fan said to himself secretly.

"But what is that cold snap?"

Up to now, Ye Fan was still confused and had no clue.

Ye Fan temporarily withdrew his hands from the spiritual fire, only to see that his hands were a little red and hot, but other than that, there was no other change.

Ye Fan's gaze was surprising, and at this time, the mysterious cold snap appeared again.

Sensing the mysterious cold current, Ye Fan immediately looked inward, trying to find the source of the cold current.

Yuan Shen searched all over his body, and Ye Fan was shocked to find that these cold currents were actually secreted from the cells in the body, just like other bodily fluids in the human body, such as stomach acid, etc., as if they were innate.

"How could this be?" Ye Fan was stunned, he hadn't found that his body still had such a self-healing ability before.

Suddenly, Ye Fan thought of something, only to see him look stunned, "Could it be the Colorful Rainbow?"

The rainbow has a miraculous effect, but it will not be revealed on its own, and it needs to be excavated by itself in the later stage.

Since returning from the Ethereal Secret Realm, Ye Fan has not found any magical effect of the Colorful Rainbow, and once thought that the magic of the Colorful Rainbow was boasted by others, but now it seems that this is not the case.

Because Ye Fan really couldn't find an explanation for the cold current, except for the colorful rainbow.

The cold current converged on Ye Fan's hands again, and the discomfort in his hands quickly disappeared.

Ye Fan was distracted, and it took a long time before he came back to his senses.

"This time, the fire resistance of both hands should have improved again, right?" Ye Fan said to himself.

Immediately, he saw Ye Fan stretch his hands into the spiritual fire again.

Sure enough, as Ye Fan expected, this time his hands couldn't feel the burning at all, let alone the pain of the burn.

"Haha......"

Ye Fan couldn't help but laugh out loud and said, "In this way, what's so difficult about cultivating the Ning Dan technique of taking chestnuts from the fire?"

Immediately, Ye Fan abandoned distracting thoughts and devoted himself to cultivation.

Originally, I thought it would take at least half a year to practice, but now it seems that it won't take long.

Five days later, Ye Fan had been able to skillfully conclude the Condensing Pill Technique of Extracting Chestnuts from Fire in the Spiritual Fire.

However, Ye Fan knew that so far, all his exercises had been on paper, so no matter how skilled he was, there was nothing good to be proud of, because only by really starting alchemy could the effect of the exercises be tested.

On the seventh day, Senior Sister Zhong Lingyu came with the spirit grass that Ye Fan needed.

Seeing this, Ye Fan was overjoyed, he had been waiting for these spirit grasses for the past two days, and now he could finally really start alchemy!