After circling in the air for a few weeks, Ula had already landed on a stone that was magma high at the bottom of the cave.

Chen Feng came down from Ula's back, looking at the red flames of the earth's veins rising up above the magma, and felt the hot air around him that seemed to be able to make people live into conversation, but he was not afraid but happy.

Not only him, but even Ula felt very comfortable at this time, squinted her eyes and felt like she was enjoying the heat here.

"Ula, do you want to die? What are you doing when you are dragging down?" At this moment, a scolding came from above.

Although the sound was not loud, because the space in the cave was shaped like a dome, the sound became very loud after it kept echoing, which scared Ula so much that she staggered under her feet and almost fell into the magma below.

Fortunately, Ula reacted very quickly, spread her wings and flew up in time, and then flew upwards, leaving Liuye who was already impatient.

Chen Feng stood on a stone two meters square, looking around, unable to help but look surprised.

It turned out that he had seen some pictures with simple but very simple strokes on the cave wall, and there were many mysterious runes mixed in it.

What surprised Chen Feng was not only the content recorded in the pictures, but also the ancient runes that looked extraordinary.

Due to the age of time, the pictures on the stone wall are already a little incomplete and mottled, but Chen Feng also roughly understood what is going on.

As Chen Feng expected before, there was indeed a huge formation here, but it was not a mountain protection formation built by the ancient cultivation sect, but a seal formation used to suppress a ferocious beast that once harmed the people.

As for the origin of this ferocious beast, because the picture was too broken, Chen Feng could not see any clues after looking at it. However, judging from the image of the person who suppressed him here, it was the costume of the ancient practitioners.

This gave Chen Feng a bold guess, that is, the ferocious beasts suppressed here are likely not living here, but were rampant in the Central Plains, but were later captured by ancient practitioners and suppressed here.

When the world was full of spiritual energy, the cultivator had a strong strength, so he naturally had a wide range of activities. In ancient times, this area was definitely a poor mountain and evil soil, so it was naturally the most suitable to suppress ferocious beasts. Even if it was destroyed by the Heavenly Seal Formation, the ferocious beasts would not have to worry about harming the innocent if they escaped.

However, most practitioners who had been two thousand years ago would not have thought that things in the world would change and that one day they would become the land of other countries.

When he was feeling emotion in his heart, Chen Feng focused on those runes again.

Just as the text has been developing and changing from ancient times to the present, the runes used by practitioners also have a gradual evolution process.

It is just because the life of practitioners is relatively long, and although the inheritance of Taoism has never ended, the changes in it are a little slower. At least not like the writing, from ancient oracle bone inscriptions to small seal scripts of the Qin Dynasty to later official scripts... Finally, until the current simplified Chinese characters, it has only been used for more than two thousand years.

The evolution of runes is much slower, but it never stops.

The original runes naturally had to be deduced to ancient times. At that time, the spiritual energy of heaven and earth was rich, the monks were powerful, and the runes used were more concise. Each one contained the rules of the Great Dao of Heaven and Earth, which was powerful and beyond imagination.

However, later the spiritual energy of heaven and earth gradually faded, and the ancient runes were no longer suitable, so monks gradually became alchemists and sorcerers, and the runes also began to change from simple to traditional.

The great way is simple, and the more complicated it is, the more it is actually far away from the rules of the great way, but because of such changes, it is easier to use. This is what the trend is and no one can resist it.

After that, the spiritual energy of heaven and earth became thinner and thinner, and runes became more and more complicated, and the number naturally increased, gradually forming existing runes. The original alchemists and sorcerers were completely replaced by cultivators.

The runes used by Chen Feng are very different from those of current cultivators. They are relatively simple, but they cannot be compared with the runes used by monks in ancient times.

The runes that Chen Feng saw on the cave wall now are more concise and simple. It must have been left by ancient practitioners who were arranged here. As for whether they were alchemists or sorcerers, Chen Feng was unknown.

Although these runes have been on the cave wall for more than two thousand years, most of them are still retained intact, and they are even constantly absorbing the spiritual energy of heaven and earth, emitting a faint light, which is obviously still playing a role.

For Chen Feng, this will be the biggest benefit he has gained here, and it will even surprise and satisfy him even more than completely refining the Qingmei Sword.

Chen Feng moved his true essence and looked at the mysterious runes carefully. After carefully identifying them again and again, after removing the same runes, Chen Feng discovered a total of thirteen different runes.

Chen Feng was not sure what these runes are useful for a while, and even with his current strength, he might not be able to use them normally. However, Chen Feng kept them in his heart and prepared to study them slowly when he had time after he went out.

Chen Feng believed that if he could master all these thirteen runes, not to mention whether his own strength could be improved by leaps and bounds, at least in the way of formations, weapon refining and talismans, there would inevitably be gratifying progress.

"Xiao Fengfeng, what are you looking at here, raising your head and stretching your neck? You are so focused." As early as when Chen Feng was concentrating on remembering the runes, Liu Ye had already taken the rattle down, but he kept staying quietly by the side. He asked curiously until he saw Chen Feng stop watching.

"Those runes have extraordinary origins. If you can understand them from them, they will definitely be of great benefit to you." Chen Feng pointed to the runes on the cave wall.

"Let me see...uh." Liu Ye looked over immediately when he heard this, but after a moment he groaned, and when his face turned pale as paper, a trace of blood flowed out of the corner of his mouth.

Chen Feng was shocked and immediately blocked his hand in front of Liu Ye, and then treated him with a pulse. He said guiltily: "It's my fault. I didn't expect that these runes were so domineering. If you don't have enough strength, just looking at them will hurt you."

"It doesn't matter, I don't matter. Actually, this is a good thing. At least it means that these runes are indeed powerful. As long as you learn it, it will be the same for me to teach you in the future." Liu Ye's face improved a lot after regulating his breathing for a moment, but the internal injuries he suffered need to be slowly treated.

"Why don't you go up first?" Chen Feng said.

"I'd rather be with you." Liu Ye shook his head.

"Okay." Seeing that she was not seriously injured, Chen Feng stopped insisting, sat cross-legged, pinched the magic tricks with his fingers, and hit Qingmei Sword's sword blank.

"Buzz..." When a crisp and long buzzing sound rang out, layers of dark golden light aroused on the Qingmei Sword's sword blank, and then the runes on it that had already been blessed by Chen Feng, illuminated layer by layer.

The sword blank, which was originally held in Chen Feng's hand, floated up as if it was lifted by an invisible force, flew into the air, emitting a bright dark golden light.

Chen Feng's magic tricks were constantly being played, part of which hit the sword blank, and more of them fell around. Then the surrounding magma surged continuously, and the rising earth veins Red Flame suddenly soared into the sky, flying into the sky like a fire dragon to surround the sword blank.

Although Qingmei sword blank is sharp, it is not completed. What is missing is the tempering of the flames between heaven and earth. Without this step, the sword blank is like a dragon without the finishing touch, and it will never be able to exert its most powerful power.

Of course, Chen Feng still has many things to do in this process, but it is not so important than the current tempering.

For refining the flying sword, this secondary tempering process is of course very important, but for the bystanders, it is quite long, boring and boring.

Liu Ye couldn't help but feel bored after staying aside for a while, and did not dare to look up at the runes on the cave wall, so he looked around next to Chen Feng.

As I looked at Liuye, I unexpectedly discovered that there was a crack in the corner of the cave wall seven or eight hundred meters away. It looked only half a meter wide, but it looked very deep.

"Will there be something amazing hidden?" Liu Ye thought to himself, and immediately squatted on a stone not far away. Ula, who was constantly lowering her head and sucking the red flames of the earth's veins, came over.

Ula found that the red flames of the earth veins here were very good for his strength improvement. She was so happy that she was absorbing them, of course she didn't want to stop halfway, but when he noticed that Liu Ye frowned slightly and his eyes showed a little coldness, he still became decisive and cowardly.

Liu Ye flew to the crack with Ula, squinted his eyes and looked inward, and saw that the crack was only seven or eight meters deep, with fire flashing in the distance, and even a strange sound of gurgling.

"Come with me and take a look." Liu Ye stepped into the crack and pulled Wula in.

Ula was reluctant, but she didn't dare to refuse at all. She could only be carried by Liu Ye in her hand and walked forward with her.

When he reached the end of the crack, Liuye looked at it and couldn't help but be surprised. It turned out that there was a larger pit here, just like a lake. It was not only filled with surging magma, but also dense caves on the surrounding cave walls.

At this moment, many monsters with red and black sides, like lizards and geckos were wandering on the walls of the caves, going in and out of those caves.

Not only can they climb on the cave walls like flat ground, but they can also jump into hot magma to swim freely, and occasionally they can pick up red fish from them.

"Tick." When I saw the fish held by the monsters, Ula's saliva flowed uncontrollably.
Chapter completed!