Overhead, there was a vast starry sky, distant stars, as if a green field was floating in the boundless universe.

In front of Lu Yu, there was a keel with a faint blue glow slowly floating, although this keel was heavier than Cangshan, but there was no gravity in this space, so it could naturally be easily suspended.

Lu Yu's retreat this time was to open the next gate of Zixiao Palace, the Jingmen.

The Jingmen is located in the back center, in charge of defense, after opening, Lu Yu's defense will be raised by a notch, but in fact, compared to the defense increase of opening the Jingmen, Lu Yu's defense by absorbing the keel itself will be greater.

Integrating the dragon bone essence into his own bones, Lu Yu's bones will be even tougher than the best holy weapons.

Absorbing the keel, Lu Yu's ability to resist blows will have a qualitative leap.

Coupled with his terrifying recovery power and injury recovery ability, even if Lu Yu stood still and fought a martial artist of the same level, those people would not want to hurt Lu Yu.

Ye Xue stood quietly on the keel like a fairy out of the dust, and beside Ye Xue, there was another person, this person's temples were slightly white, and his face had been engraved with many traces of time, but she could still see her beautiful face from the outline of her face, this person was Ye Xue's aunt Mu Shuitian.

Absorbing the keel is a huge project, the Shura King of the Divine Beast Secret Realm got the keel very early, but for so long, it only absorbed half of the keel, the keel itself, but it didn't move, the main reason was that it was too difficult to absorb the keel.

The keel is different from the keel, such a big keel, even if the body bursts, it can't swallow it, absorb the keel, and can only refine the essence of it to integrate into itself.

However, as an ancient divine beast, even if its body has been dead for an unknown number of billions of years, its bones are not something that ordinary people can refine.

How easy is it to distill the essence of it?

And this keel can't see the light, in the ancient Feng clan Lu Yu didn't dare to take it out at all, even the flaminite Lu Yu was not new, let alone others.

If there is no help from a master like Flaminite, she can only rely on Ye Xue to use the power of rules to refine the essence of the dragon bone little by little, and the efficiency is extremely low, but now it is different, with Mu Shuitian, her strength is a half-step lower god, stronger than Flaminite and even the current patriarch of the Ancient Feng Clan!

Mu Shuitian stood in front of the keel, looked the keel up and down, and then took a deep look at Lu Yu, his eyes were full of brilliance: "I really can't imagine that such an opportunity can be touched by you, if you can have this section of the dragon bone back then and heal my father's soul injury, the Nine Heavens Holy Land will not end up like that......"

Lu Yu bowed slightly and said, "Thank you very much for the trouble to come to your predecessors." ”

Lu Yu knew that if he wanted to refine the essence of the dragon bone, it was not a simple matter, and it would take a lot of energy and qi, which was a lot of kindness.

Mu Shuitian waved his hand and said: "Thank you is no need, without you, Xue'er would still be sleeping in the Nine Heavens Star Chart, I'm afraid I won't be able to see her until I die, this old man remembers! In comparison, what is it to refine a dragon bone for you? If you can really reorganize my Nine Heavens Holy Land in the future, you are the great benefactor of my Mu family, this kindness, I am afraid that the old body will not be able to pay it in a lifetime, but when it really comes to that time, you are afraid that you will not need my favor." ”

When Mu Shuitian said this, with a wave of his right hand, a three-legged and two-eared Da Ding flew out of her storage space, getting bigger and bigger, and the Da Ding sent out a strong suction force to envelop the Supreme Keel, but the Supreme Keel became smaller and smaller, and finally it was sucked into this Ding.

Lu Yu looked at it aptly from the sidelines, this was a star-level treasure, and it was even a first-class existence in the star-weapon.

After Mu Shuitian received the Supreme Dragon Bone, he punched out dozens of seals with one hand, and in the blink of an eye, the space where she and the Star Weapon Baoding was located was isolated. A strange spatial barrier shrouded it, and on top of the barrier, there were countless lines circulating, like faint water lines.

Lu Yu recognized that this was the pattern of the power of the rules of time, and the space isolated by Mu Shuitian was to open the power of the rules of time and use it to accelerate the passage of time, and looking at the energy fluctuations of this formation, Lu Yu estimated that the speed of time was about a few tens of times.

One day outside, a month inside.

In this way, refining the dragon bone essence was more difficult than Lu Yu had thought before, and even if Mu Shuitian came to refine it, it would take quite a long time.

Time acceleration is not a clever power of time rules, but it is not used much in the genius cultivation of major sects, and it is only used occasionally.

This is mainly because, firstly, time acceleration can not really extend life, ten times the speed of time in the space, you will be ten years old in a year, there is no meaning, and secondly, in such a closed space, the power of various rules will also be slightly distorted because of the different speed of time flow, there is a little error in the comprehension, and it is okay for a short time, if it is a long-term comprehension of the power of distorting rules, there is no benefit.

While Mu Shuitian was refining the keel, Ye Xue said: "Lu Yu, as I said before, the Juyuan system and the body training system are inherently contradictory, especially in the stage of double life and death, the double cultivation of the astral body is against the sky, if you absorb half of the keel and open the next door of Zixiao Palace, I am afraid that the difficulty of you breaking the ninth level will be doubled! ”

"I know. ”

"Hmm...... This keel is a hundred zhang long, heavy as a mountain, even if you just refine the essence, you can't absorb it all at once, I estimate that your absorption of one-third is already the limit, and the remaining two-thirds, I will use it to enter the medicine, and make the foundation for you to open the two most difficult doors in Zixiao Palace, that is, the door of life and the door of death. ”

Lu Yu nodded, it feels good to be taught, there is no need to explore it yourself, I think that if someone was on the side to guide me when I was in contact with the physical arts, and gave a detailed introduction to the terrifying difficulty of this astral double cultivation in the double life and death stage, Lu Yu might not have the astral double cultivation.

If no one teaches, once or twice, you may still hit it crookedly, and if you do it too many times, you will definitely take a detour.

"Listen carefully, I will teach you the formula of the "Firmament Hegemony", this is a new set of physical training methods, although the "Firmament Hegemony" is a physical training method involving the three major realms of the seven levels of physical training (including quenching the marrow), Zixiao Palace, and Dao Palace Nine Stars, but its biggest advantage is still reflected in Zixiao Palace, it is many times better than the "Chaos Gang Dou Sutra" you practiced before, this set of methods was discovered by my grandfather when he found the Nine Heavens Star Map in the secret realm. (To be continued)