When Ning Fei returned to the sea of fire, he saw an incredible picture. The whole sea of fire was like boiling water, spreading upwards and in all directions. The crowd that had gathered on the edge had already left the place before, letting go of the heat of the fire wave.

Ning Fei looked at the boiling sea of fire and fell into deep thought, why does this sea of fire boil every once in a while? This is just the space inside the trial tower, even the trees that have survived for thousands of years can't turn into demon cultivators, which means that there is a lack of laws in the outside world here, and there should be no natural disasters here.

"Chong" A shout sounded around him, waking up Ning Fei who was in deep thought. Ning Fei looked up and saw that all the monks were rushing towards the sea of fire, it turned out that the sea of fire had fallen into a period of calm.

Time waits for no one, Ning Fei still dares to continue to be in a daze, shrinking the ground into an inch and casting the method, leaving a phantom on the spot, and when he appears again, he is already a hundred meters away.

The monk who was the first to react had now entered the sea of fire, and Ning Fei rushed into the sea of fire in the last wave with his body technique.

As soon as Ning Fei entered the sea of fire, there were ugly vegetation all around, and even the earth was burned into powder by the flames, and when he stepped on it lightly, he would leave a deep footprint.

Ning Fei kept rushing inside, and the fire crystals that appeared outside had already been captured by the monks who entered first. One by one, the figures were left behind by Ning Fei, and the monks who were left behind only felt a gust of wind blowing, and looked around and secretly wondered, when did this sea of fire have wind? Seeing that they didn't find anything, they shook their heads and walked towards the sea of fire.

Ning Fei ran for a while, and there were very few monks he encountered, and some monks didn't keep rushing in, they looked for them to the left and right.

When he arrived here, Ning Fei's divine sense was fully opened, and he wanted to use his powerful divine sense to search for a large area, but when his divine sense continued to spread around. Ning Fei discovered a surprising thing, that is, he was in the sea of fire, and his divine sense could only cover a radius of 100 meters.

You must know that when he was still in the early stage of foundation building, he could extend his divine consciousness for one or two kilometers on the earth, and when he reached Uranus, he thought that under the pressure of the law, he could also extend about a kilometer.

Ever since he was in the late stage of foundation building, even if Uranus was under great pressure, he could still have a divine sense that shrouded two kilometers. But it's only about 100 meters here.

Ning Fei shook his head helplessly, since there were restrictions on divine consciousness here, then he could only run more diligently in order to search for more area.

Ning Fei used his divine sense within a hundred meters to constantly search for the sea of fire as he walked. "Huh, this is the fire crystal, it seems that you are lucky." Within the scope of Ning Fei's divine sense, a crystal the size of an egg with a reddish color was submerged in the dust a foot below.

With the discovery that Ning Fei quickly walked towards the fire crystal, with a wave of his right hand, the dust that covered the fire crystal was blown away, and the fiery red crystal was transparent, revealing its full appearance.

Ning Fei grabbed the crystal with his hand, and the fire crystal on the dust fell into his hand. Ning Fei carefully looked at the fire crystal in his hand, sensed it slightly, and found that this fire crystal lived up to its reputation, and it was indeed suitable for body refining.

This fire crystal has a violent fire spiritual power in it, which can stimulate the body cells of the monk and constantly polish and destroy. But there is a hint of life in this energy, and when the energy destroys and polishes the cells, it can repair the cells that have been damaged by the powerful energy. In this way, a cycle is formed, destroying, repairing, and refining the cells.

Ning Fei looked at the fire crystal in his hand with shiny eyes, "Haha" laughed loudly, it's really a good thing, just pick up a stone in the sea of fire, it's better than the reward given by the old man, dead old man, you are really stingy.

After a few words, Ning Fei put away the fire crystals and continued his great business of picking up stones, and after having physical proof, Ning Fei's enthusiasm was all stimulated, and he shuttled through the sea of fire with great vigor.

One, two, three... In a while, Ning Fei had already collected more than a dozen fire crystals. But at this time, Ning Fei found that it was difficult to find the fire crystal, and many areas were basically searched by other monks.

After running a lot of places and still getting no results, Ning Fei cast his eyes into the depths of the sea of fire. Along the way, Ning Fei found that all the monks didn't seem to be going inside, like a dividing line, stopping here.

Ning Fei looked around, wanting to find someone to ask why no one went to the depths of the sea of fire, and whether there was any danger inside, but the monks who could still meet often just now disappeared collectively at this time, just like an appointment.

No one told Ning Fei the answer, but Ning Fei still resolutely decided to go deeper, he was very greedy for such a good baby.

The phantom flashed, and Ning Fei rushed inside, only to advance a thousand kilometers in the original place, Ning Fei felt that the temperature around him seemed to have increased.

But just this kilometer distance, Ning Fei obtained a fire crystal, and with a gratifying harvest, he completely forgot about the temperature increase.

Constantly advancing, one by one the fire crystals were pocketed, and the harvest of this small meeting was more than double that of the previous gains. Ning Fei's face continued to move forward with joy, but he didn't notice that the temperature had risen too high, and he had already cast a shield on himself, which might be like boiling a frog in warm water, dying in enjoyment.

Ning Fei, who had been harvesting continuously, was already sweating with the protection of the shield, but he was still immersed in joy.

I don't know how long Ning Fei has been walking forward, he has now come to the deepest part of the sea of fire. He was almost about to collapse, but he was still happy to search for fire crystals.

"Mom" An exclamation broke the calm in the depths of the sea of fire, it turned out that Ning Fei had discovered a treasure land, where fire crystals were stacked together within a radius of 100 meters, and the height of the stacks was one foot thick.

Ning Fei first exclaimed and then immediately turned into excitement, "Haha, the little master has made a fortune, he has made a fortune, this is to change the local tyrant mode!"

The "boom" sea of fire shook, boiling at a speed visible to the naked eye, and the temperature was rising one by one.

This sudden change scared Ning Fei, who was in the midst of excitement, stupid, what kind of trouble is this? Ning Fei, who didn't have time to think, immediately increased the energy of the shield to resist the rising temperature. Then he glanced at the fire crystals all over the ground with nostalgia, and rushed out with his feet, it was important to save his life if the treasure was good.

But he had only just run a hundred meters before he was forced back by the waves of fire rushing from outside.

At this time, outside the fire, where did the group of monks gather, accustomed to watching the return of the sea of fire that had spread around before, some happily counted the harvest this time, and some secretly scolded them for running in vain with a bitter face, wasting such a good opportunity.

If Ning Fei saw that the monks who had entered the sea of fire were already resting outside, he would definitely beat them up, why didn't he tell the young master that the sea of fire would return so quickly.

But he didn't want to think about it, if there was such a good fire crystal, why didn't others pick it up? It was because if he entered the sea of fire too deeply, he would not be able to catch up with the time to retreat, otherwise how could he wait for him to pick it up.

In the sea of fire, Ning Fei was slapped back by the returning fire waves, and he was now almost exhausted. The energy of the whole body was used to thicken the shield to resist the high temperature, and one by one Hui Yuan Dan was constantly thrown into his mouth, which was less than necessary, and his mouth was now split open with thirst.

Ning Fei sent countless requests to the purifying flame at his heart, but this guy was still the same and ignored Ning Fei. Ning Fei is so angry, eat the master, live in the master, now the master is in trouble, you actually pretend to be dead.

The purifying flame didn't care about himself, and Ning Fei had no choice but to find a way to save himself. The water in the Qiankun ring has been drunk by him, and now he is really anxious, is he going to confess here today, I haven't reached the highlight moment yet, it's too depressing to leave like this. And my lovely baby daughter, you have to take care of yourself in the future, don't be hungry and thin, chubby is cute.

Without the replenishment of spiritual power, the shield enchantment was already crumbling and about to shatter, Ning Fei looked at the fire crystal under him, the master had to use this fire crystal even if he died, otherwise it would be really unknown to die.

With a decision, Ning Fei lay on the fire crystal pile, waiting for the enchantment shield to disappear completely, and sucked in the fire crystal energy with all his might.

At the last moment, Ning Fei poured the golden liquid rewarded by the old man into his mouth, in his words, he was going to die anyway, no matter what the reward was, it couldn't be wasted, it had to be used anyway.

The fiery snake broke through the barrier shield and wrapped Ning Fei in a circle, and his body could be seen withering at a speed visible to the naked eye, and the outermost part had turned into powder and scattered to the ground.

Ning Fei's consciousness has been completely blocked in the sea of knowledge, he has witnessed his body being burned, but the consciousness in the sea of consciousness has no way at all, or it will not be long before this consciousness will go with the body.

The fire poison penetrated the internal organs and bones, and suddenly at this moment, the golden liquid that Ning Fei drank exploded, constantly repairing Ning Fei's body and extinguishing the fire poison inside. The consciousness in the sea of consciousness can clearly feel that his body is constantly strengthening.

This discovery gave Ning Fei hope that he didn't have to die. Zhihaili's consciousness took the opportunity to regain control of his body, and when he regained control of his body, Ning Fei was about to faint from pain, and "whoop" called it very comfortable!

In order to save his life and endure severe pain, Ning Fei quickly ran the Creation Body Refining Technique, and he had cultivated to the Body Refining Stage before. After the ordeal just now, he directly crossed the late stage of the skin refining stage, so he ran the method of bone refining.

Bones are the framework of the human body, the foundation that supports the human body, and a strong body must have a strong support.

Ning Fei continued to absorb and transport the spiritual power in the high-temperature fire poison and fire crystals into the bones, and the bones were shattered and repaired little by little. Because of the addition of high-temperature fire poison from the outside world, the repair function inside the fire crystal obviously couldn't keep up, so Ning Fei immediately transferred a part of the golden liquid to help repair it.

After going back and forth for damage and repair, I don't know how many times it has passed, but now Ning Fei's bones have changed, more energetic and stronger, several times more than before, and have reached the small level of bone refining.

Ning Fei, who was happy, suddenly found that the golden liquid was almost exhausted, and his face immediately turned from joy to sadness. Oh my God, is this giving me hope and making me despair?

When Ning Fei was desperate, the purification flame that had been like a sleep suddenly moved, you Fei cried with joy, my fire uncle, you are here, if you don't see such a handsome guy later, your companions don't give you face at all, they dare to burn your home, help me teach them a good lesson.