In the five elements Yin and Yang realm, the saints of the heavenly stems can feel the magic elements of their own. Although they cannot be said to be rich, relying on the characteristics of magic power generation, continuous circulation in the five elements Yin and Yang realm will at least not be weaker than various attribute elements in the outside world. Being able to do this is enough to ensure their continuous combat effectiveness.

Of course, this is also relatively speaking. If they really encounter continuous battles and must continuously output a large amount of magic power, it is still easy to exhaust their magic power. Ji Dong has also considered this. Therefore, in this earthly world, there is no doubt that he will be the core and main combat power, and his friends appear more as his help. Especially in the magic beast, in addition to the Great Yan Holy Fire Dragon and the Eclipse Phoenix Fireer, Ji Dong instructed everyone not to summon his own magic beasts. Because what the Five Elements Yin and Yang Realm can support is only the supply of everyone. If the monsters are also summoned, then let alone whether the monsters can adapt to the battle in the earthly world. They will also subconsciously absorb the elements in the Five Elements Yin and Yang Realm to supply themselves, making everyone more likely to fall into danger.

Of course, the saints of the Heavenly Stems do not care much about these dangers. With the existence of the unlimited positioning teleportation array, when encountering a bad situation, as long as they can withstand it for a period of time, they will naturally be able to withdraw calmly.

The two summoning elements of the Fire Lord and the Dark Flame Lord ran in front to open the way, and the saints of the Heavenly Stems followed them and moved down the dark corridor quickly. In their actions, they must also maintain the state of the five elements of Yin and Yang realm, and their speed of advancing will inevitably be affected.

Fortunately, with Ji Dong's soul connected, Ji Dong made detailed comments on all the bumpy and uneven places under his feet in his mind through his soul detection, and even accurately reached every point of his footing. Apart from his hard work, the saints of the Heavenly Stems did not spend much effort and could always remain in the best condition.

The one who can help Ji Dong the most is undoubtedly Chen Sixuan. With the support of soul fusion, Ji Dong's soul power can be restored to the consumption, which is enough to maintain a long-term movement.

Just as Ji Dong judged, after they penetrated about a thousand meters, the surrounding temperature began to drop. In addition to the fire element, other magic elements in the air still existed, but they had to be relatively thin. However, there was still darkness around them, and they needed to rely on the magic light to see the road clearly. From this moment on, they had already penetrated into the earth's center world.

While walking forward, Ajin suddenly spoke: "Ji Dong, when I was in the center of the earth, my master once told me that the earth's center world is actually like an enlarged holy evil island. It's just that it is not ring-shaped inward, but cone-shaped downward."

"Cone-shaped downward?" Ji Dong glanced at A Jin with some confusion.

Ajin said: "The master said that each layer in the earthly center world has no equal area. Among them, the largest is the first layer. It is almost as big as two countries in our human world. There are also the most geocentric creatures living in it and the weakest. The lower the area, the smaller the area. Moreover, there are powerful geocentric creatures guarding the entrance of each layer."

"Oh? Why is this?" Because Ajin said that Lieyan told her, Ji Dong would naturally pay great attention.

Ajin said: "The reason is very simple. It is to avoid the lower level of earth-center creatures entering the upper level. After all, the lower level of earth-center creatures will be stronger. The center of earth-center creatures are also a place where the strong prey on the weak. Each entrance must be protected by powerful earth-center creatures. The purpose is to shock the lower level of earth-center creatures, so that they will not rush into the upper level and disrupt the ecological balance of the upper level. Otherwise, the center of earth-center world will be in chaos. At the beginning, when the two kings fought, the center of earth-center world was drawn away because of the withdrawal of these entrance guardians. The master was born. After pacifying the two kings, he gradually restored the center of earth-center world to a stable state. Therefore, the master said that if one day we want to enter the center of earth-center world from outside, then we must not kill those guardians when passing through each entrance. Otherwise, it will lead to chaos in the center of earth-center world."

After hearing A Jin's words, Ji Dong couldn't help but frown. It was not difficult to pass through the entrance, but if you could not kill the guardian at the entrance, there was something wrong with it. If every guardian at the entrance was as powerful as the confusing demon smoke pirate, it was not impossible to defeat him or her. But there was no doubt that doing so would also arouse the alertness of the entire earthly world. Although Ji Dong was very confident about the strength of the Heavenly Stems Saints, he was absolutely not confident that he could compete with the entire earthly world with those of them.

After Ajin said this, he did not continue. This was all because Chen Sixuan took advantage of Ji Dong's inattention and told her to tell her to repost it. Chen Sixuan could never say some things by herself, as it would easily arouse Ji Dong's suspicion. But it would be fine if Ajin reposted it. After all, Ajin had lived with Lie Yan in the earth's center for a while. Later, Ji Dong encountered danger and came to Ji Dong's side.

Fury said: "Ji Dong, you don't have to think too much. Let's take one step at a time. We really encounter dangers that cannot be resisted. We have unlimited positioning teleportation arrays as a back path, so everyone's safety will not be problematic."

Ji Dong nodded and said, "This is the only way to go now."

Everyone kept going downwards. When they thought that the earthly world was dark, the surrounding environment gradually became brighter. At first, it was just dark red, but gradually it turned red. The light source came from the surrounding stone walls. The deeper they went down, the more surprised everyone was. They were no longer in their eyes, but an extremely vast space. The walls on the top and the side of the holes on the side all showed a bright red. The fire element became more and more intense.

The rich fire element made Ji Dong feel very comfortable. The two elemental bodies he released were even more energetic. The three-meter-high body was obviously a little firmer. It was obviously caused by absorbing the fire element in the air. Ji Dong was very suspicious. If these two guys were brought to the eighteenth floor of the earth and let them live there, would they really become the new Fire King and the Dark Flame Demon King? Of course, this was just an imaginary of his. After all, these two elemental bodies themselves have no soul and need his control to act.

Through careful experience of soul detection, Ji Dong discovered that the red light brought by the cave walls was because some crystals were condensed on these cave walls, or some crystal components. These crystals were not known to have gradually accumulated over the years. They were like small pieces of fire element crystals that merged with the rocks to emit this red light. If they were to evaluate their quality, Ji Dong believed that if these crystals could be collected and compressed in large quantities, they could probably have the same effect as the first-level magical beast crystal nucleus. Obviously, this crystal with magic concentration could not arouse his interest. But this was a good start. As Chen Sixuan said before, the earthly world itself is a huge treasure house. How can you return empty-handed when you enter the treasure mountain? When you reach a deeper level, you will definitely find new discoveries.

At this time, they had already penetrated more than ten kilometers deep into the earth's center world. Ji Dong signaled everyone to slow down and stop for a while. He also needed to carefully observe the situation around him. He understood that they had now truly entered the first level of the earth's center world.

Sitting down and rest on a rock that could cover everyone's bodies, taking out the prepared water, and everyone started drinking it. Although there was a water magician, he could quench his thirst by creating water elements at any time. But for safety reasons, before leaving the Fire Academy, Ji Dong still purchased a large amount of drinking water and dry food for convenience. Anyway, everyone has storage magic weapons, so it is always right to prepare more.

Sitting together, the five elements Yin and Yang Realm is always maintained, which is the source of their magic power. Maintaining these five elements Yin and Yang Realm is equivalent to everyone being in a state of cultivation. The distance of the previous ten kilometers is not enough to cause them to consume too much magic power. However, in this way, the five elements Yin and Yang Realm continues to maintain the five elements Yin and Yang Realm. At a certain time, they must stop to practice for a while and use the magic power of mutual generation to supplement themselves, so that they can maintain it for a long time. In other words, after entering the earthly world, unless necessary, the five elements Yin and Yang Realm will never be lifted.

Ji Dong took a sip of water and said to everyone: "We are now entering the first level of the Earth's core world. No one knows about it, nor do we know how many dangers and opportunities there are in this world. So, I hope everyone can always be vigilant. Since there are monsters like the Earth's core world that can be concealed from my soul detection, then maybe we will encounter them again. Be careful to make the ten thousand-year-old ship, do you understand?"

Everyone nodded and took advantage of this rest time to start practicing silently for a while, so that they can always maintain their peak state.

Du Xiner smiled and said, "Teacher Ji Dong, why haven't we encountered creatures in the earth's center world yet? I wonder how different these earth's center creatures are from our ground creatures."

Ji shook his head and said, "I don't know either. But you heard it just now. Ajin said that the first floor of the earth's center is as big as two countries in our human world. And no one knows how far from the ground to the earth's center. What's the point of just over ten kilometers? Although we have entered the first floor of the earth's center, it's still early to really penetrate the earth's center. You don't have to worry. We will stay here for at least a year. I guess you will see the earth's center creatures soon."

Speaking of this, Ji Dong thought to himself that the diameter of the earth in his previous life was about 12,700 kilometers. If the planet in front of him was about the same as the earth, it would have to be 6,000 kilometers away from the core of the earth! What a terrifying number this is? This is not as simple as flying 6,000 kilometers outside, and it can be achieved in just a few days. It is so difficult to go deep into the core of the earth. No wonder the president of the silly and rich business association will position the final conditions at the core of the earth. Not to mention where to get what, just continuing to penetrate the 6,000 kilometers of the 6,000 kilometers of the terrestrial world is already more difficult than climbing to the sky.

At this moment, suddenly, Ji Dong's soul moved and his eyes lit up. The situation that Ji Dong sensed appeared in the minds of the saints of the Heavenly Stems.

An unknown creature was running wildly in their direction, not too fast, almost the same as when ordinary humans were running at full speed. Behind this creature, there was a group of creatures with a life aura that was almost the same as it was chasing. The number was as many as hundreds, and they were also approaching in their direction.

Du Ming smiled and said to his sister: "Xin'er, aren't you looking for a geological creature? It seems that we are about to meet you." With the improvement of our strength, Du Ming became more and more calm. However, Du Xiner was still no different from before.

Fury frowned and said, "It's a pity that the language of the earth's center world is different from that of us humans. Otherwise, if we grasp a creature in the center of the earth, it will definitely be much easier for us to find the entrance to the next floor." The first floor of the earth's center world is far from attracting the interest of these saints of heaven. Finding the entrance to the next floor as soon as possible is obviously what everyone needs to do most now.

Ji Dong smiled slightly and said, "This is not a problem. I have my own way. Let's get to know these friends who welcome us into the earth's center."

Ji Dong had an idea, and the Fire Lord and the Dark Flame Lord had already received his order. He flashed his body and hid his powerful and huge body behind the rock. Ji Dong didn't want to scare these earth-center creatures at once.

The two lords had just hidden themselves, and from afar, everyone had already seen the earth-center creatures running over.

Tianji stood beside Ji Long and smiled and said, "Master, do you still remember it? It was probably the case when we met."

Ji Dong and Tianji looked at each other. From Tianji's eyes, he saw a deep gratitude. Although so many years have passed, Tianji has never forgotten his favor. Until now, although Ji Dong has always emphasized that he was called a name, the word "master" is still often hung in Tianji's mouth.

As they were close, everyone had seen clearly the appearance of the running earth-center creatures. What surprised them was that these earth-center creatures were very similar to humans. At least, the earth-center creatures in front of them also had heads, limbs, and were walking upright like humans.
Chapter completed!