Xiao Yu stood in front of the Demon Ancestor Tree, quietly looking up at this giant tree that reached the sky, and involuntarily felt a feeling of worship in his heart, Xiao Yu could feel that this world was conceived from this Demon Ancestor Tree.

The hand lightly rested on the root of the demon ancestor tree, and the images flashed quickly in Xiao Yu's sea like a movie, pressing the hand at the root of the tree to change a place, and the images that appeared were different, Xiao Yu was amazed, I had heard it a long time ago, there was a magical demon ancestor tree in the demon world, where you could see all the things that had happened to the demon clan since ancient times, and when I saw it today, it was really so.

Xiao Yu kept moving his hands, and finally, in a corner position, he saw the image of the war some time ago, tens of millions of people charged desperately, corpses were all over the field, and blood flowed like a river, Xiao Yu seemed to hear the crying of thousands of people, although it had been a while, but when Xiao Yu now stood in this angle and looked at this war again, his heart was still deeply shocked.

How tragic the war was that was near the annihilation of the race, until you saw it with your own eyes, you will never know. Xiao Yu felt that this war had made the Demon Ancestor Tree suddenly become much older and older.

In addition to being able to see all the history of the demon clan, the biggest function of the demon ancestor tree is to continuously output the aura of heaven and earth for this world, of course, there is also one of the most important uses, that is, the members of the demon clan can perceive all the places in the demon world here, and the members of the demon clan can communicate with each other through the relationship between the demon ancestor tree and the flowers and trees separated by tens of millions of miles, just like the current wireless communication, as long as there are plants around you, the people next to the demon ancestor tree can communicate with you.

Of course, only the demon clan can enjoy this function, and Xiao Yu can't verify it personally.

Xiao Yu withdrew his hands and looked up at the towering Demon Ancestor Tree again, and suddenly a huge question arose in his heart, how did this magical Demon Clan Tree be so powerful, how could it be composed, and what energy did it rely on to support it.

Thinking of this, Xiao Yu stretched out his right hand again, gently swayed the huge roots, automatically rejected the huge image of the Demon Ancestor Tree, and poked out a trace of mana to drill into the inside of the Demon Clan, wanting to find out, but Xiao Yu's mana was isolated by a layer of enchantment as soon as he drilled into the Demon Clan, no matter how hard Xiao Yu tried, he couldn't move an inch further.

Xiao Yu took turns to try the seven exercises, but it didn't work! In the end, purely with the attitude of finishing the trial, he used the Seven Star Divine Technique in his body together, and a colorful light flickered, and then Xiao Yu was pleasantly surprised to find that his Seven Star Divine Technique entered the inside of the Demon Ancestor Tree.

The interior of the Demon Ancestor Tree is quite wonderful, like a large mechanical facility, there is a space for storing images, and there is also a space for transforming energy, energy is transmitted from the roots of the Demon Ancestor Tree, and then continuously exported through the body surface of the Demon Ancestor Tree.

Compared with the 9999900000 zhang height that was exposed on the ground, the roots of the Demon Ancestor Tree were deeper and more extensive, and the roots extended to almost every corner of the Upper Demon Realm.

When Xiao Yu's mana reached out and didn't know how many nine hundred and ninety-nine hundred and ninety-nine hundred and ninety-nine hundred and ninety thousand zhang, he discovered that the Demon Ancestor Tree actually grew on a huge nebula vortex, and the huge nebula vortex was rotating at high speed, constantly exhaling strange energy, and the energy was absorbed by the roots of the Demon Ancestor Tree, and then transformed into heaven and earth aura, which was continuously exported to the outside world.

This is the entire structure of the Demon Ancestor Tree, the internal structure is too complicated, Xiao Yu is difficult to explore one by one, but he has a strong interest in the nebula vortex under the ground, and is about to go down to explore, when an abrupt voice suddenly sounded in the sea of gods, "That is the Ancient Immortal Great Array"

"The Ancient Zhuxian Great Array?" Xiao Yu was stunned for a moment, stared at the Supreme Xuanyin in the Divine Sea, and asked, "This is the Zhuxian Great Array laid out by the Heavenly Demon and the gods millions of years ago?"

"To be precise, it should be one of the eyes of the Ancient Zhuxian Great Array" The Supreme Demon Seal in the Sea of Gods grabbed the white path "The Ancient Zhuxian Great Array is a super-large formation arranged by the Heavenly Demon and the gods in the Six Realms, with the original power of the Six Realms as energy, endlessly, this formation is the most difficult to crack"

"That's right! The Zhuxian Great Array is a living formation, as long as the Six Realms are still operating, this formation will always exist, and there will never be a lack of energy! If you want to crack the Zhuxian Great Array, unless the Six Realms stop operating!" The Supreme Blood Seal was not willing to be lonely, and ran out to chatter.

Xiao Yu was quite speechless, these three supreme seals are like uncles, please don't move, what kind of wind is blowing today, and the three supreme seals are blown out at once.

"So, if you want to break the Great Array of Immortals, it's almost impossible," Supreme Xuanyin continued, "Millions of years ago, when the Heavenly Demon laid down this Great Array of Immortals, he said that unless the heavens and the earth stop running, this formation will never be broken."

"Never be cracked?" Xiao Yu said in his heart, he had promised the Dragon Clan and the Feng Clan that they must crack the Zhuxian Great Array and rescue the two Xuannu, if this is really as a few people said, if it can't be cracked, how can this be good.

Of course, the Supreme Seal's words didn't say that they were dead, they only said that if the Six Realms were still operating, they would never be able to crack it, but what if the Six Realms stopped operating? Is it easy to crack the Zhuxian Great Array? Xiao Yu flashed such a thought in his heart, but he didn't say it, after all, with his current strength, it was too far to say this, and everything had to wait until his own strength came up.

Xiao Yu learned from the mouths of the people in the Demon Ancestor Realm that the Demon Ancestor Tree has always been a mystery to the Demon Ancestor Tree, and it is said that as long as the person who can climb the top of the Demon Ancestor Tree can get the inheritance of the Demon Ancestor. But almost no one ever climbed up.

Although Xiao Yu didn't know if this legend was true, he still decided to give it a try, the Demon Ancestor Tree was so magical, he would definitely not let him down.

However, Xiao Yu still underestimated the difficulty of climbing the Demon Ancestor Tree, after climbing the Demon Ancestor Tree, Xiao Yu could not mobilize the true qi in his body normally, and relied on physical strength to support it, fortunately, Xiao Yu has practiced martial arts since he was a child, and his physical fitness is far better than that of ordinary people, not to mention that after practicing the Ten Thousand Phases Martial God Technique, Xiao Yu's physical strength has changed a lot, and at this time, Xiao Yu's body is not a problem even if it is a hard blow from a master of the Transformation God Period.

Xiao Yu easily climbed to a height of tens of thousands of zhang, stopped to take a slight breath, and continued to climb upward, the more upward the resistance, not only from the hurricane around him, but also from the pressure of the space above.

Every time he took a step forward, the pressure on Xiao Yu increased exponentially, until he reached a height of 100 million zhang, Xiao Yu's arms were as heavy as lead, and he was under huge spatial pressure.

Resisting the huge pressure, Xiao Yu continued to move up step by step, to his delight, as the pressure continued to increase, Xiao Yu's Myriad Phases Martial God Technique actually took the initiative to operate, constantly counteracting the powerful spatial coercion for Xiao Yu, and at the same time, the cultivation of the Myriad Phases Martial God Technique was also slowly growing.

This discovery made Xiao Yu excited, usually the progress of the Ten Thousand Phases Martial God Technique is very slow, only in the face of a strong opponent, when experiencing a super strength battle, the Martial God Technique will obviously increase his cultivation, and when he usually does not participate in the battle, the progress of his cultivation is almost invisible.

Since climbing the Demon Ancestor Tree can quickly increase the cultivation of the Martial God Technique, wouldn't he be able to climb it often in the future, however, then Xiao Yu denied this idea, with the improvement of cultivation, it is becoming more and more difficult for the Eastern Emperor to ask him to do what he has to do, where does he have time to climb the Demon Ancestor Tree often, everything should be natural.

With the assistance of the Ten Thousand Phases Martial Divine Technique, Xiao Yu quickly jumped to a height of more than 800 billion zhang, and as far as the eye could see, the thick clouds were already under his feet, and there was silence all around, and only this demon ancestor tree stood proudly for nine days.

Xiao Yu took a heavy breath, looked up at the still tall Demon Ancestor Tree, and couldn't help but sigh in his heart at the magic of nature, and he didn't know how this Demon Ancestor Tree grew in the first place, and it was so difficult to climb it by himself, but you can imagine how much strength and courage it needed when it first grew.

Through his own body functions, he silently calculated the time, he had been on the Demon Ancestor Tree for two days and two nights, but he had not seen the top of the tree, and he didn't know how long it would take to climb to the top, or whether he could climb to the top of the tree.

After climbing thousands of zhang upward, Xiao Yu gradually felt that he couldn't bear it, even with the help of the martial arts, it was difficult to make any progress, Xiao Yu's body had reached the limit of what he could bear, and at this time, the top of his head seemed to be holding a 10,000-pound giant ding, which made him breathless.

Xiao Yu looked at the more than 800 million zhang that had climbed below with great reluctance, and only the last 100 million zhang was left, it would be a pity to give up like this. But if it continues to rise, Xiao Yu is worried that his body will not be able to bear it.

Xiao Yu grabbed a handful of healing pills and threw them into his mouth, and continued to grit his teeth and climb, this persistence went up thousands of zhang, but at this time, Xiao Yu had already exceeded the limit that his body could bear, his ears began to buzz, and a vision suddenly appeared in front of him.

He saw a stunning woman in a long purple dress, walking towards him, walking in front of him, smiling at himself, smiling kindly, like a spring breeze. However, at this moment, that smiling face suddenly turned into a hideous and vicious python, and the python spat out the letter and licked it on Xiao Yu's face.

A fishy smell pulled Xiao Yu back to reality, and he forced his spirit to look at it, what kind of illusion was this, it was really a python with huge fleshy wings staring at a pair of blood-red eyes the size of a basin, contemptuous of Xiao Yu.

Xiao Yu was startled, and as soon as his hands that grabbed the trunk of the tree loosened, his whole body fell straight down.