Cheng Ling looked up and found that the three houses had no roofs. I was extremely depressed in my heart, and I couldn't think of finding the entrance with all my heart, so I neglected to look at the roof, and was teased by Bai Yiyi.

Fortunately, the skin is thick enough, and after a little embarrassment, he recovered. As soon as his right hand moved, the meteor fire floated in the palm of his hand, and when he saw the environment he was in now, he seemed to be very happy, and without waiting for Cheng Ling to move, he rushed straight towards the fire essence crystal on the house.

Bai Yiyi asked in surprise: "Brother Ling, what kind of flame is this, it's so beautiful, and it can move on its own?"

Cheng Ling explained: "This is the Meteor Fire, which ranks ninth in the Heavenly Fire. These Flame Essence Crystals are very helpful for its upgrade, so let it toss on its own, and we will continue to refine it. Your true essence should be almost purified!"

The two women nodded at the same time, after this period of purification, their true yuan purity has been greatly improved, and they are almost at the limit of the yuan baby.

Cheng Ling stopped talking, and continued to take out the demon beast Neidan, and the three of them began to refine and supplement it again.

They didn't care at all, and they were all trying to refine the true element. The meteor fire was happily next to the house, constantly devouring the fire essence crystals left behind.

These Flame Essence Crystals were much higher than the quality that Cheng Ling had obtained in the Senlong Hall at that time, and they were not on the same level at all. The meteor fire continued to devour, nourishing itself, and soon rose to the fourth level of flame, and the fire essence crystals scattered around the house were also devoured.

At this point, it began to set its sights on three houses. The houses are made of top-quality Agni Crystals, and each piece is so large that it has a fatal attraction.

After devouring the fire essence crystals scattered on the ground, it began to stare at the walls of the house, and pounced on it, and began to slowly devour.

Unbeknownst to the three people in the cavern, a small elf-like thing gradually emerged from the scorching liquid at the bottom of the lava as the meteor began to devour the walls of the house.

It is shaped like a flame, but it feels like a living object compared to a normal flame. From the liquid at the bottom of the magma, a little bit of the appearance, the fire in the magma seemed to see a king, and all of it converged towards it.

Its color began to change gradually, from dark red, to deep red, to orange, and it continued to change, and the temperature around it gradually increased.

Inside the cavern, bubbles in the magma began to bubble up frequently, and the gurgling sound became even more intense. Cheng Ling opened his eyes and saw that the meteor fire was frantically devouring the fire essence crystals on the wall, and four golden circles of light appeared in the center of the flame, and a trace of afterimage appeared in the fifth.

He was overjoyed in his heart, thinking that it was because the flame upgrade required a lot of firepower, so he didn't care, closed his eyes and continued to refine the true element.

The meteor fire was now free, it devoured the fire essence crystals on the wall, and soon, a small hole was swallowed up in the wall, and an even hotter fire surged towards it.

Fortunately, after devouring the fire essence crystal on the wall, it was raised to the peak of the fourth level, and the fire energy also became its great supplement, which helped it rise to the fifth level!

But then, the flame at the bottom of the magma became anxious. It had just changed its color to the pinnacle of red, and was about to ascend again at the critical moment when the fire emitted by the magma liquid was absorbed by the meteor fire above, and most of the food in its mouth disappeared.

Now, how willing the flame spirit is willing to stop, it suddenly explodes

Unleash a powerful suction force to compete with the meteor fire for the fire in the magma.

Meteor Fire also felt as if there was an object below, competing with itself for fire, of course it was unwilling, and instantly burst out with powerful energy.

At this time, due to the devouring of the meteor fire, the wall of the house is no longer complete, and a hole the size of a bowl is exposed in the middle.

In fact, Cheng Ling's observation is not wrong, although the three houses in the lava cave do not have roofs, they are sealed. It's just that it's just affected by habitual thinking, and if you really fly into the air, you can find that the original roof is also covered by a layer of fire essence crystals.

The three secret rooms here have existed for an unknown number of years. It was set up by Cheng Ling when he saw the young man on the mural, and the function of the secret room was to seal a fire spirit under the magma.

The fire spirit is born from heaven and earth, and it is the first ray of fire produced by the opening of heaven and earth. It is the origin of all fires, and there is a difference here, it is not only the origin of fire, but the origin of all fires.

It can be said that all the fires in heaven and earth, including mortal fire, earth fire, and heavenly fire, were born from him, just like the ancestors of mankind.

And the fire spirit sealed here was transformed by a spark that opened the first flame of the world. This fire spirit is still very young, and it has been stored in this hell lava by the chance of the young man in the mural.

The scorching environment here is the result of the fire it has emitted for tens of thousands of years. Perhaps, in a few tens of thousands of years, it may gradually grow into a true fire spirit.

But now by mistake, Cheng Ling and the three of them came to the Demon Hell Lava to refine the true element, and it just so happened that he had the ninth-ranked Heavenly Fire. Skyfire's need for Agni Essence and Fire Energy is instinctive, and Fire Spirit also needs the help of Agni Essence and Fire Energy to grow.

As a result, the fire spirit under the magma and the meteor fire above began to compete for the fire power in the molten cavern. The meteor fire has reached the fifth level, and the fire spirit below, although it has been nourished for tens of thousands of years, its level is not high, but the origin is stronger than the meteor fire.

This is also a kind of inertia in the cultivation realm, the more precious the heavenly and earthly treasures, the more difficult it is to upgrade, and it often takes tens of thousands of years to upgrade to a level.

The fire spirit is graded by its own color, and there are nine grades. They are red, orange, yellow, green, cyan, blue, purple, white, transparent or nothing, nine kinds. Today, the fire spirits under the magma are in the process of changing from red to orange.

Although its innate origin is very high, its level is not high. And after the meteor fire is upgraded to level five, its flames are much stronger than those of the fire spirit.

Therefore, under the scramble between the two parties, the fire spirit found that he was not even the opponent of the mysterious object above. A large amount of scorching heat was absorbed by the other party, and all he could get was some soup. It was completely enraged, and burst out of its own source power, trying to gather those fire energy.

Suddenly, Meteor felt a kind of psychological tremor, as if a courtier was facing a king. But it itself has come to the key to breaking through the sixth level, and the fire power sealed by the house is much more high-end than that in the molten cave.

It's like wine, buried deep in the ground, and there is no comparison between a thousand years and ten thousand years. 10,000 years old is definitely more mellow, with a better taste and wine. In the same way, the scorching energy has been sealed under the magma for ten thousand years, and the fire power it contains is much more high-end than that in the molten cavern.

This is also the key to the popularity of fire energy in a very short period of time, and it is about to break through!

It made it tremble, but it still desperately absorbed the fire energy under the magma and constantly improved its realm.

The fire spirit was even more crazy, and he didn't expect that he had exuded the power of the origin, and the other party would still come to fight. It's like an emperor being provoked, where is he willing to give up.

It simply lifted its entire body away from the lava and flew upwards to see what was going on against it.

Soon, it rushed up from the bottom of the magma, and with the direction of the fire absorption, it finally realized what kind of thing was competing with itself for the fire. At first glance, I was overjoyed in my heart, and I didn't care about it at all, and I threw myself into the meteor fire.

As I said before, strictly speaking, the meteor fire is also bred by the fire spirit. The upgrade of the fire spirit is very slow, but if you encounter the heavenly fire with high level and rank, and devour them, you can save tens of thousands of years, not to mention that the meteor fire in front of you has also been upgraded to level five.

It's like a hungry person who has been hungry for several meals and sees the full table of Manchurians on the table. Where is there the slightest ability to think, as long as the meteor fire is devoured, it will immediately rise to two levels, and the color will also turn orange!

The meteor fire was caught off guard and was hit by the fire spirit. In an instant, a kind of spiritual coercion rushed towards him, it was a kind of original coercion, just like an ant seeing an ant queen, there was no power to resist at all.

However, after all, it was refined by Cheng Ling, and subconsciously transmitted a message to the owner.

Cheng Ling and the three of them felt that the fire in the molten cave had increased greatly, and the refining speed had almost increased several times. After absorbing all the remaining fifth-level inner pills on his body, he felt the fluctuations from the meteor fire.

In fact, this is also because of the meteor fire breaking the seal, the fire under the magma is several times stronger than the high-end in the lava cave, the scorching degree is greatly increased, and the refining speed is also several times faster.

Hundreds of Inner Dan were all absorbed, and Cheng Ling's cultivation completely broke through the peak of the late stage and came to the Yuanying Consummation, but it has not yet reached the limit, and there is still room for improvement.

As for Bai Yiyi and Gu Youlan, they have reached the limit of the consummation limit, the true yuan in the dantian is almost solidified, as long as the soul realm is reached, they can break through the god at any time.

Just as he was about to feel something, Cheng Ling sensed the fluctuations from the meteor fire. He was in a hurry, the meteor fire was a big killer weapon for himself, not to mention the alchemy refining array flag, even the Eight Extremes Dao was also a great killer, if he lost it, he would lose a lot.

The walls of the house had been swallowed up by meteor fire, and a hole the size of a bathtub was just big enough for a person to get into. Cheng Ling rushed into the house to see what was going on. But as soon as he entered, he felt a furious burning heat rush over his face.

Whew!

The defensive light shield on his body was completely melted by the scorching heat, and the clothes disappeared completely. He looked up and saw a large fiery red object in front of him, wrapped in a meteor that seemed to devour it.

Cheng Ling was shocked, where was he willing to give up, he hurriedly made hand prints, and injected his spiritual power into the meteor fire. Now, the meteor fire is not only its own consciousness, but with Cheng Ling's subjective thoughts, where is he willing to be devoured by the fire spirit.

It burst out with a scorching fire, instantly surrounding the fire spirit, and it was about to devour it! When Cheng Ling saw it, he was immediately overjoyed, the thing that Meteor Fire fancied was definitely not ordinary, and it wanted to devour it, so I would help it!

He continuously fed his spiritual power into the meteor fire, helping it to speed up its devouring!