Looking at the blue crystal in his hand, Mu Xiao was also surprised in his heart, he had only seen some rumors in the book before, this earth heart crystal had not appeared for hundreds of years, but he didn't expect to see an earth heart crystal here.

Mu Xiao looked at it carefully for a while, judging from the form luster and the endless energy contained in it, Mu Xiao could be sure that this was indeed the Earth Heart Crystal.

The earth heart crystal, how it is generated, no one knows so far, only that in this earth heart crystal, there is a majestic spiritual power.

Hundreds of years ago, it was rumored that someone had absorbed the Earth Heart Crystal, stood out, and sang all the way to the peak of martial arts, which was really against the sky.

But such a thing against the sky, it is also dangerous and abnormal, although the earth heart crystal will cast a top powerhouse, but it is also an extremely dangerous thing, most people in the process of absorbing the earth heart crystal, at least they are devoured minds, become the walking dead, or they explode on the spot and die, and there is no one who can really survive.

But as long as there is a 1 in 10,000 chance of creating a top powerhouse, there will still be people who are not afraid of danger to try.

It's just that Mu Xiao heard that this earth heart crystal has not appeared again for hundreds of years.

Mu Xiao's brows furrowed, and his heart was also a little entangled, this earth heart crystal was indeed rare and precious, but no one could be sure that he was the one who could survive in ten thousand.

The palm of his hand brushed the earth heart crystal, and the Hongmeng bead in his body suddenly shook violently, revealing a strong sense of longing.

"Hongmengzhu wants to absorb the Earth Heart Crystal. ”

Mu Xiao secretly said in his heart, for the first time in such a long time, Hongmengzhu had such an extremely strong desire.

Sighing lightly, Mu Xiao smiled helplessly, didn't he still resent his lack of strength before, how could he have a treasure that could make him stronger, but he retreated again, since he wanted to become stronger, he should be fearless and dare to fight.

Thinking of this, Mu Xiao's eyes became extremely firm, and he no longer hesitated. Of course, he would not act rashly, Mu Xiao also knew that his realm at this time was still too low, and it was not the best time to absorb the Earth Heart Crystal.

Putting the Earth Heart Crystal into the storage bracelet, Mu Xiao looked at Yu Ling'er, "Ling'er, since we are here, it is better to improve our strength first and then go out." ”

Yu Ling'er's eyes flickered, indeed, there is still the Chisha Legion outside, and it is still difficult to fight against the Chisha Legion when she goes out at this time, so it is better to take this opportunity to cultivate and improve her strength before going out, so that she may still have some chance of winning.

Yu Ling'er nodded, since Mu Xiao had already made up her mind, she naturally agreed.

......

The Optimus Seal is extremely powerful, and the difficulty of cultivation is naturally not ordinary, even with Mu Xiao's talent, it took nearly a week to initially understand the operation of the Optimus Seal.

Whew, Mu Xiao took a deep breath and rubbed his temples, just understanding this Heavenly Seal made Mu Xiao feel that his energy was seriously depleted.

"This Seal of Heaven is truly extraordinary. Mu Xiao couldn't help but sigh, but fortunately, now that he has understood this Heavenly Seal, he can officially start practicing.

According to the records in the jade slips, Mu Xiao used Zhou Tian's spiritual power, and between one move and one style, it implied the foundation of the Great Dao.

Another week passed, and Mu Xiao lightly palmed, and a powerful spiritual power fluctuated, with a slight quaint aura, rippling in the air.

"The first gravity of the Optimus Seal, Cheng. ”

Feeling this powerful spiritual power fluctuation, Mu Xiao was overjoyed in his heart, this is only the first gravity, and the power is already no less than the ordinary five-grade martial arts, if all the nine gravity is cultivated, I am afraid that it will be able to catch up with the seven-grade martial arts.

Seeing Mu Xiao, who had successfully cultivated, Yu Ling'er was also very happy in her heart, and smiled playfully, "Congratulations, I have succeeded in cultivating so quickly." ”

Mu Xiao scratched his head and smiled a little embarrassedly, "Congratulations, Ling'er, you broke through so quickly." ”

Because of the reason for practicing Jiuhua Taiqing, Yu Ling'er also broke through to the sixth level of the Tempered Body Realm two days ago, and at such a speed, Yu Ling'er was shocked.

After calculating the time, I am afraid that there is not much time left until the end of the assessment, the two of them spent two weeks just cultivating, and the one-month assessment is about to come to an end, and if they don't go out at this time, they will miss it.

Mu Xiao looked at the two dry bones, knelt on the ground and kowtowed his head three times, and said loudly, "The younger generation Mu Xiao came here by chance, and I am fortunate to have the inheritance of the two seniors, thank you here." ”

Yu Ling'er also knelt down and knocked her head three times, thanked the two dry bones in front of her, and then buried them with Mu Xiao.

"Let's go. ”

Mu Xiao said softly, Yu Ling'er also nodded, now there is no road leading to the outside at the end of this cave, I am afraid that there is only one way out.

Pool.

Back to the waterhole, the water surface is rippling, and it should glow with the spars in the stone wall.

"It seems that this is the only place where you can get out. ”

Mu Xiao nodded at Yu Ling'er, and jumped into the water first, and Yu Ling'er also jumped into the water afterwards.

Both of them are martial cultivators, and it is not difficult to hold their breath underwater for a long time.

Mu Xiao swam all the way forward, turning back to look at Yu Ling'er from time to time, and after making sure that Yu Ling'er followed him well, he was relieved to continue to swim forward, and he didn't know how long he swam, but he finally saw a bright light in front of him, which seemed to be moonlight shining in the water.

Mu Xiao was overjoyed in his heart, turned around to look at Yu Ling'er, pointed in the direction where the moonlight was, and swam forward.

"Poof. ”

Bursting out of the water, Mu Xiao took a few deep breaths, looking at the night sky above, Mu Xiao knew that they had come out, and after looking around, Mu Xiao probably recognized that this was the lake they saw when they came down from the cliff.

Coming out of the water, sitting cross-legged on the shore, using spiritual power to evaporate the water on his body, at this time, Yu Ling'er was also running spiritual power, her wet hair was attached to her face, and Yu Ling'er under the moonlight looked extraordinarily quiet and beautiful.

Mu Xiao hurriedly turned his head and swallowed his saliva, thinking about something to himself.

Rustling.

Mu Xiao's ears moved slightly, as if two people were coming from the dense forest.

With a slightly sharp eye, he looked in the direction of the comer, and with a sigh, Mu Xiao's figure disappeared in place.

"Really, it's been half a month, Big Brother White Fang is still looking for us, those two people jumped from such a high place, how can there be any possibility of survival, I'm afraid the corpse has already been eaten by the demonic beast." ”

"Hey, don't complain, Big Brother White Fang has ordered, we just do it, anyway, there are a lot of spiritual source points for us. ”

These two people are the people of the Red Mountain Legion, after Mu Xiao and Yu Ling'er jumped off the cliff, Bai Fang ordered that they must be found, and they must see people and corpses if they die, otherwise, Bai Fang is really not easy to explain to Qin Wuming, and it can't be just a simple cliff jump.

But after searching for nearly half a month under the cliff, he has not been able to find any trace of the two, and Bai Fang himself is a little puzzled, could it be that he is thinking too much.

The two continued to search, and suddenly there was a sound of gently stroking the leaves above, and then a ghostly figure appeared behind the two.