Sun Ang and the other two hurriedly followed in. The hole could only allow one person to walk in, but after entering for dozens of feet, it suddenly became wider, with fork holes leading to different places. Sun Yi's voice came from the inside, guiding them: "No need to distinguish the road, no matter which one you walk, you can gather together in the end."

Everyone tried it, and it turned out to be true: This is a huge nest, and the Sky Centipede dug through every cave. There are hundreds of holes outside, just to facilitate the Sky Centipede to fly out of the cave at the same time.

The nest was still full of poisonous gas, but it could not cause trouble to the six people. When they arrived at the deepest part of the nest, Sun Yi was already standing there blankly.

This is a huge cave like a patio, like a huge cylinder that is up and down, reaching ten thousand feet high and exceeding three thousand feet in diameter. On the top of the cave, there is a hole about a hundred feet in size, with a faint light leaking from it.

Caves are distributed on the mountain walls of this huge cave.

Sun Ang and the others came out of these cave entrances. Sun Yi had raised his hands, holding a Yuanji fire like a torch. He kept injecting Yuanji, and the flames illuminated the entire cave.

In the center of the huge cave, under the faint light leaking from the top, a huge natural iron embryo grew out from under the ground.

This innate iron embryo is like an ancient tree, as high as three thousand feet tall and four hundred feet thick. The surface is mottled rust like a dead bark. If it weren't for the lack of branches and leaves, it would be easily seen as a huge ancient tree at first sight.

From the innate iron embryo, pure metal aura radiates, and is full of vitality. It seems that it has its own life.

Sun Yi looked back at everyone and grinned and said, "I don't know what this is, but I think it should be a treasure, right?"

Sun Ang flew up in the air, slowly circled around the innate iron embryo, and then smiled and said, "Sun Yi, you are such a blessing."

Sun Yi was proud: "That's all right, this young master is very lucky and magnanimous!"

Sun Jian curled his lips: "If you say you are fat, you will pant."

Everyone laughed secretly, and Sun Yi said annoyedly: "If you don't believe me, let's compare! If you find something next time, go in first, and I'll see what you can gain."

Sun Jian was dissatisfied: "Just compete, hehe!"

Sun Ang looked at everyone and said, "I'm useful to this thing." Sun Yi waved his hand indifferently: "You go there, there is still a need to say more."

Sun Jian and Sun Tang also nodded: "Don't be so polite." Of course, Yu Peilan and Qiu Yirui would not have any objections. Sun Ang nodded, and felt warm in his heart, saying, "You have to help me protect the Dharma."

Sun Yi smiled and said, "No wonder he is so polite. It turns out that we still want to be coolies."

Sun Ang pretended to be angry: "Go and be alert."

"Hahaha!" The five people dispersed and each guarded their own position. Sun Ang floated in the air, standing in front of this huge innate iron fetus, but he was a little nervous. Although he was a seventh-level creator now, he was not sure whether he could succeed in refining this giant.

But this thing is definitely a precious thing, too large to carry, and cannot be left here for nothing. Sun Ang must take a chance.

If it succeeds, it will be a great help to him, and it will be much easier to pioneer the deceased leader in the future.

It is difficult to determine what level of this kind of innate iron tire. In theory, innate things are extremely precious, and they are already very rare among the seven realms of the Dark Sea. As long as you are involved in the word "innate", you will definitely be the ninth level.

However, because this thing grows naturally, if it is too small, it will not be useful even at the ninth level. And the plant in front of Sun Ang is already so huge that it must have surpassed the ninth level. It is difficult to determine what level of material it is.

Sun Ang didn't have to try it, and he knew that even if the thick rust shell outside was just the hardness of the ordinary eighth-level magic weapon, it would be difficult to break.

He sighed secretly: No wonder the undead explores extremely dangerous, but everyone is extremely keen on. This is just the first danger, and there is such a huge gain in the explored area!

He took a deep breath, suppressed all the distracting thoughts in his heart, opened his hands, and the various knowledge of the creator passed through his mind, like a dazzling meteor shower erupting in the dark sea. He chose the biggest way to recognize himself.

boom--

The Yuanxi gust rushed out of the body, gushing out flames. The flames rose like a tide and wrapped the entire innate iron tire. The thick rust shell on the skin slowly turned red and seemed to begin to soften.

But the whole process is extremely slow.

At this time, Sun Ang had nine fire energy Yuanjiu dragons, and he released them all in one breath. These nine Yuanjiu dragons almost carried all the fire energy Yuanjiu in his body.

The nine Yuanji dragons transformed into a real huge fire dragon, thousands of feet long and short. After flying around the huge innate iron tire for a while, they all rose to four thousand feet high, and opened their mouths to spit out a large amount of flames from the sky.

Nine fire dragons spit out nine flame waterfalls.

A huge fire cover was covered with the entire innate iron tire. Sun Ang felt powerless afterwards, and immediately swallowed the spiritual pill, and at the same time searched through his storage space, taking out all the treasures related to fire energy to supplement his strength.

Qiu Yirui and others kept their respective positions and felt the huge heat behind them rising and falling. They couldn't help but look back and change color together.

Although they had never observed Sun Ang's creation, such a huge formation must have been Sun Ang's efforts, even exceeding the limit of Sun Ang's ability!

It seems that this thing is indeed an amazing treasure, which makes Sun Ang so difficult.

Sun Ang's forehead was sweating and forced to persevere for a long time. Finally, he felt that the hard rust shell outside the congenital iron tire had finally softened. He was excited and three Yuanji dragons flew out from above his head.

Unlike the previous nine, these three are "thunder dragons". The Thousand-foot Thunder Dragon shines bright blue light around the body, which is much faster than the Fire Dragon. It hits the top of its head with a whoosh, and then the three thunder dragons open their mouths together, and with a click, a thick lightning slashes out from the dragon's mouth.

However, the target of these three lightning lights is not the innate iron tire, but it gathers at a point from three directions, and is thousands of feet above the innate iron tire, condensing into a bright thunder ball that is impossible to see directly.

The three thunder dragons were still desperately injecting thunder energy into the thunder ball. After a meal, the thunder ball had become extremely unstable and trembled slightly, causing the surrounding space to slowly begin to distort, and the vision became unreal.

At this time, the power of the three thunder dragons seemed to be exhausted and became depressed.

The thunder ball suddenly turned into a ray of lightning, and from top to bottom, it chiseled through the entire innate iron tire with a crack. A blue thunder net instantly filled the entire rust shell, and then there were a series of explosions, and the thick rust shell was completely shattered and fell off one by one.

In the falling rust shell, pure silver light was leaked, which was the purest metal inside the innate iron tire. This metal was in a state of innate chaos. As long as it was given appropriate guidance, it could be converted into any precious metal in the world, even the rarest metal materials were not a problem.

But Sun Ang did not intend to change it.

When all the rust shells were completely removed, the innate iron tire became much shorter, only two thousand feet long and six hundred feet thick.

In the sky, the fire dragon and the thunder dragon were still spitting out their energy violently. This was not for refining. Innate metals did not need to be refined at all and could be used at will. The reason why Sun Ang did this was to use these forces to imprint his "breath" on the innate metals. After all, these forces were transformed by his original breath.

This step is even longer. Although it does not require very powerful power, it must penetrate the entire innate metal. Sun Ang gritted his teeth and insisted that the elixir that could help him at hand. As the treasures were consumed less and less, Sun Ang's whole body was soaked in sweat, and then evaporated by his own firepower, and then wet again, and repeated more than a dozen times.

He persisted silently, with great endurance. The Immortal Emperor's inner demon once again activated it unknowingly, and his "greed" for innate metal made him persist.

The mysterious Tai Chi slowly rotated, as if giving him infinite power again.

Unconsciously, another three hours passed, and Sun Ang felt that this huge innate iron fetus was his own - his breath was all imprinted in it.

So, he finally began to start his last step: the Nine Yang Sword Soul flew out.

Whoosh!

The Nine Yang Sword Soul turned into an extremely thin fire thread, accompanied by a lightning light, penetrated into the innate iron tire, and entrenched in the core position, and began to merge with the entire innate iron tire.

The Nine Yang Sword Soul trembled slightly, and the innate iron tire outside had no resistance and actively merged!

Sun Ang breathed a sigh of relief and knew that his judgment was correct.

This is the benefit of innate iron tires. The grade of this material is too high, and at Sun Ang’s current level, it cannot be refined. However, it will actively integrate, as long as Sun Ang opens the closed rust shell outside.

The Nine Yang Sword Soul quickly expanded.

This magic weapon was originally an eighth level, but after the battle of Dark Sleeping City and fused a Yuanji Dragon Thunder strike, the material was damaged and fell to the seventh level.

Now with the most pure innate metal element supplement in the world, the level has increased rapidly. The originally damaged part has been quickly replaced, and the innate metal element is injected into the Nine Yang Sword Soul.

This huge innate iron tire shrank rapidly at a speed that could be seen by the naked eye, and pieces of residue-like substances were constantly discharged from the Nine Yang Sword Soul. Under the tempering of Sun Ang's flames and lightning, these residues turned into blue smoke.
Chapter completed!