The old man pondered for a moment and slowly analyzed, "Except that both of them have repaired the boundary wall, the difference between them is quite big.

"As you can see, the Heaven Replenishing Stone can be manipulated artificially, and the speed and efficiency of repairing the boundary wall are not comparable to the Invisible Sky Fire, but the effect of the Invisible Sky Fire is much greater than that of the Heaven Filling Stone.

"A hundred years ago, there was a powerful and chaotic energy left behind in the void of heaven, and the power of different kinds of rules was constantly colliding and eroding.

"If there is no magic weapon like the Streamer Bottle to clear these energies and rules in advance, the Heaven Replenishing Stone will not be able to function. However, the Invisible Sky Fire was born precisely under such circumstances, and slowly solved all problems.

"In my opinion, the Invisible Heavenly Fire is like the self-healing ability generated by this world in a helpless situation, this power comes and goes without a trace, and it is very unlikely that it can be used by humans......"

Speaking of this, the old man shook his head, obviously not expecting anything from this.

Yuan Ming, who was also listening with her ears, laughed, and just patted her chest to show that her role was irreplaceable.

However, Luo Yu retracted his gaze lightly and said lightly: "No, the invisible heavenly fire can be used, and I have it." ”

After a moment of dead silence, the thousand waves stirred up by the stones rippled.

"What did you say?" said the old man word by word.

However, his question was covered by Yuan Yu's exclamation, "What? You also have something to make up for the heavens?"

Hurriedly squeezed in front of Luo Yu, Yuan Yu forcibly occupied his attention, and shouted: "I have never seen the invisible heavenly fire!

"Don't mess around!" Xu didn't want Yuan Yu to show the holy relics at will, so the old man grabbed her back, and his expression was a little nervous.

Luo Yu's expression was a little weird, but he wasn't ready to hide it, "It's difficult." I can use it occasionally, but I can't really command it, even if I wanted to show you!"

The old man said in disbelief: "The invisible heavenly fire is so domineering that it can even burn the power of the rules, how can you hold it?"

"At the end of the Primordial Realm, I forged my body with flames, and what I refined was the Invisible Heavenly Fire. Twice it burned me into nothingness and reshaped me. It usually exists in my life chakra and never interferes with my actions, but I don't know how to control it. ”

In Luoyu's tone, it was obvious that the Invisible Heavenly Fire was regarded as something with a spiritual mind, after all, all of its actions had occurred autonomously so far.

"The wheel of life...... old man and Yuan Yu glanced at each other, pondered for a moment before saying, "If it usually inhabits the wheel of life, our clan may have a way to mobilize it. ”

This time it was Luoyu's turn to be surprised, it seems that he still underestimated the heritage of the ancient people.

But no matter how anxious Luo Yu was, and how eager Yuan Yu was, the old man still firmly adhered to the rules he had set. It was already dark, and Yuan Yu had to eat and sleep, and everything had to wait until the next morning.

"Your grandfather is right, you're tired today, let's go rest first. Luo Yu echoed.

Thinking of the way Yuan Yu dozed off against the egret just now, he was embarrassed to be anxious anymore. What's more, today's harvest has been great, and he also needs to digest it well.

"I'm not tired!" Yuan protested.

"No, you're tired. Luoyu knew very well that she was not tired, but too excited.

In the case of two to one, Yuan Qi's Xingtou was forcibly extinguished. She ate dinner under the supervision of the old man, washed and slept under the supervision of the old man, and there was no chance to take advantage of it.

It turns out that the old man is right, Yuan Yu, who has not rested yesterday, fell asleep as soon as he touched the pillow, and it seems that he will never wake up until the sun basks his buttocks.

With the lessons of the past, the old man decided to stay by Yuan Yu's bed to prevent her from sneaking out in the middle of the night...... Even if she sleeps like a little dead pig now.

Luoyu was left alone in the backyard, and recorded what he had learned today and some of his thoughts in a jade slip. The paintings in the python skin scroll are difficult to understand if no one explains them, and since Yuan Yu and the old man have already completely explained the seven ancient clans, he turned his attention to other ancient books.

However, whether it is a tortoiseshell skeleton, a bamboo scroll, or a spar jade slip, the pictures recorded in them are extremely abstract, and those ancient characters that obviously change with the ages, Luo Yu only feels that all he sees is the book of heaven, and he can't decipher any specific content on his own.

There are only a few bound books here that are not ancient, but they should be used for comparison with ancient books, which record the travelogues of various places in Linglu, as well as the relics of treasures that have been born over the years.

Confirming that he couldn't see anything without help, Luo Yu gave up the idea of studying hard all night.

Now the valley is quiet in the dead of night, and when the old man and Yuan Yu disappear from view, they also disappear from perception at the same time, except that the breath of the egret is as dazzling as a light in the night, Luoyu only feels that he is in a silent and closed space.

Thinking about it like this, he understood Yuan Yu's excitement all day, and Luo Yu imagined that if he had stayed in such a boring and unchanging place for more than ten years, he would have gone crazy. In this way, the little girl Yuan Qi is much more stoic than him.

Luo Yu, who had nothing to do, was ready to use his cultivation to pass the night, his mind sank into his body, and he finally had a chance to carefully observe the transformation results of the unknown medicinal power.

To be honest, Luoyu is quite glad about his current situation.

The once seemingly perfect body still has many relative weaknesses, and the crushing of the man in white forced him to expose these weaknesses. If it weren't for the injuries inflicted by the man in white, he wouldn't have fallen into a coma, and it would have been impossible for him to heal his injuries on the premise of complete autonomy, and the medicine given to him by Yuan Yu might not have been able to directly act on these "defects".

Luo Yu had already understood at this time that with his current knowledge and ability, it was far inferior to those instincts that lurked in the depths of his soul. A similar state of coma is actually the realm of unity between heaven and man that people yearn for, and he accidentally got far more benefits than expected.

This unexpected tempering seemed to make up for the shortest stick on the barrel, and Luo Yu felt that he could exert twice the strength of the previous one without increasing the slightest cultivation.

And with a little operation of spiritual power, he was pleasantly surprised to find that the capacity of the qi sea more than doubled with the bearing capacity of his body, and the speed of spiritual power mobilization also doubled!

Before that, Luo Yu didn't know that there was a hidden danger in his body that restricted the use of spiritual power. And now that the hidden danger has been eliminated, even the speed of refining the sealing spiritual power has accelerated a lot.

In the early morning of the next day, there were voices and noises in the wooden house in front of him, and Luoyu had also finished his cultivation for the night. He looked at the small puddle of spiritual power in the sea of qi and felt that he couldn't cry or laugh.

In the past, if he could transform so much spiritual power in one night, he would definitely laugh out loud, but now these spiritual powers seemed so small in the suddenly expanding sea of qi, which made him want to cry without tears.

Yuan Yu finished her breakfast under the tripartite supervision of the old man Luoyu and the egret, and immediately made the egret spit out a bone fragment half the size of her body.

The bone fragments were polished to a reperceptible finish, but the archaic characters engraved on them were not damaged in the slightest. Looking at the shapes of those characters of different sizes are extraordinarily simple, more like ghost paintings than the ancient book fonts that Luo Yu flipped through last night, it shows that it must be more ancient.

"No, don't worry. The old man stopped Yuan Yu, "Maybe he needs to know the function of praying nerves first. ”