After a brief introduction, King Kong went back to the house to rest, and the trialists who didn't know what he meant were attracted by Dutch's words.

With the introduction of the Netherlands, a huge stone monument rose in situ, the resource list.

"After leaving the mountaineering road, there is the undead battlefield, everyone needs to go to the undead battlefield for trials, of course, if you feel dangerous, you can also go back to the mountaineering road to cultivate and rest. But these people may be at the end of their trials in a thousand years. The Netherlands continues to explain to everyone.

"There is a treasure on the battlefield of the undead, called Spirit Crystal. High-level beings know what it is, and low-level beings can go to the badge to check it, and the resulting spirit crystals can be exchanged for points or used by themselves. There are countless dead masters on the battlefield of the undead, although their souls have long been shattered, but they have become a special existence with the spirit crystal, the undead. Holland looked at the crowd and said solemnly,

"These undead have lost their minds, but the desire to fight remains. After defeating the undead, the undead's body will drop refining crystals, and the refining crystals will be collected. His number determines where you will stay in a thousand years. Go, go to the battlefield of the undead and find your chance! Holland shouted.

Xia Yu understood, but he didn't rush to the battlefield of the undead, but retreated to the mountaineering road, set up his dormitory, and began to inquire about relevant information in the dormitory.

"There has been no information about the spirit crystal. Now it's finally there! Xia Yu was very excited, and hurriedly opened the badge to inquire.

Spirit crystals, from the Realm Origin, are crystals that contain extremely high and pure energy. Can greatly increase soul strength. If an A-level life obtains a spirit crystal, it can directly break through to a B-level or even a C-level life. It is mostly used to increase the strength of the soul with E or higher health. Expensive, rare treasures.

Spirit crystals are divided into four levels, one is transparent and two are white. Mostly used for E-class life. Three levels of yellow, four levels of green. Most of them are used for F-level lifeforms, of which third-level and fourth-level spirit crystals are hard to find.

"Why isn't there a black spirit crystal introduction?" Xia Yu frowned and said secretly.

Xia Yu clearly remembered that the spirit crystal that changed his fate was black, but at that time, the bastard and even Gu Lie couldn't find out this information, thinking that the spirit crystal was originally black, but according to the records of the Xingyu Temple, there was no record of the black spirit crystal.

"Don't talk about the black spirit crystal to outsiders, for fear of causing a big disaster!" Xia Yu made up his mind in his heart.

In the past, Xia Yutian was not afraid of the ground, although the trial behavior of entering the Xingyu Temple was also very arrogant, but it was all within the range. This Star Universe Temple allowed Xia Yu to see the mystery of the universe and his own insignificance. It seems that he has experienced many risks along the way, but that is because he is small and has not entered the eyes of the masters.

"There's one more thing I need to know about the Dutch!" Xia Yu thought of it and went to find Lord Holland.

"My lord, what does it mean that my badge has turned yellow? I see that most of the other people's are white, huh? Xia Yu asked.

"That's proof that you can fight beyond the level, as I told you before, no matter how high the life level is, there is always an upper limit, but the combat power is unlimited." Lord Holland explained.

"So what does my current yellow badge represent?" Xia Yu asked.

"Entry, but it's not bad to reach the yellow level only after the D level, and it's good to reach the yellow level within the E level, yellow, blue, purple, red, and the difference between the clouds, you still have to walk a long way!" The Dutch adults wondered.

"I see, thanks to Lord Dutch, I will continue the trial as a D-class." Xia Yu said goodbye.

Returning to the dormitory, Xia Yu made another careful preparation, and three days later, after getting ready, he called out the worries who had broken through to the C-level, and also began to set off towards the battlefield of the undead.

After entering the battlefield of the undead, many people began to huddle together to keep warm, especially those in the same camp. After all, many people had grudges against each other on the mountaineering road before, and it was easy to be liquidated in these three places.

The battlefield of the undead is almost endless, and nearly 10 million people have disappeared after entering the sea like mud cows.

"Leave the worries, you have offended a lot of people before, don't stay too far away from me, I cover you!" Xia Yu patted the shoulder of the worried.

"Lord Xia Yu, when it comes to offending people, I'm afraid I'm not as good as you!" A cold sweat from the worries.

Where did Xia Yu offend people when he was on the mountaineering road, it was a public enemy-like existence. Thinking of this, Li Wu couldn't help but distance himself from Xia Yu.

"Why aren't there many people? I didn't see the so-called undead! Xia Yu looked at the wasteland and sighed.

"Boss, this is the periphery, there are few undead, and we set off a little late." Li Wu said.

"Well, it's better to be late, so as not to run into those high-level beings who seem to have some opinions about me, then let's speed up!" Xia Yu began to accelerate.

"Boss, are you afraid or not afraid of those people, how do I feel that you want to fight with them!" Liwu asked.

"These free opponents are all treasures, I like them!" Xia Yu said with a smile.

The continent on the periphery of this Star Temple has no sun and moon, and only relies on the regular light and darkness of the glow in the sky as day and night. Even advanced beings can't be mentally tense for a long time, and they also need regular rest.

On a barren rocky plain, a campfire burned lonely and struggling. Around the campfire, Xia Yu and Liwei took out the wine they were carrying and were chatting.

A dimly lit wasteland, only the gossip of the two and the crackling of the campfire. Suddenly, the stones not far away seemed to be lifted by something, and there was a harsh grinding sound.

"What's that?" Liwu shouted.

I saw a humanoid creature emerge from the ground. There are bones, there is armor, and the bones are filled with some blood-stained dirt between the armor, and the white bones can be clearly seen in some places. He still held a broken sword in his hand, rusty. The eye sockets were empty, but there was a tiny flame burning.

"Isn't this the so-called undead?" Xia Yu looked at it with interest.

Xia Yu and the two of them had already stood up, holding weapons in their hands, and when they met this undead for the first time, they didn't know what the strength of the other party was, so they were on guard.

The undead stood up and looked at Xia Yu and the others with ghostly eyes, and then let out a roar from his mouth, but this roar was thick and muffled, his mouth was open, and some blood sludge fell down.

As if alive, the undead rushed towards the two of them with their broken swords.

"It's not fast, boss, let me try first!" The sorrowful saw the undead rush over and be eager to try.

Immediately, the two fought together, and Xia Yu could also see that there was no aura fluctuation on this undead, but each attack also reached the level of C-level, fortunately, that Liwu was also the best in C-level, an iron rod, dancing and windy, and after several fights, finally the undead spirit was crushed. scattered over the plain.

Just when Liwu was proud, the scattered bones gathered together again, and the remnant sword still stabbed at Liwu.

"Holy!"

Li Wei was also shocked, stabilized his mind, fought with the undead again, and after defeating the undead again, he directly smashed the bones of the undead with an iron rod. Just as the skull was smashed, a transparent, thumb-sized crystal fell.

"Could this be the crystallization of the refining body?" Li Wei picked up the crystal, looked at it to no avail, and then threw it to Xia Yu.

Xia Yu caught the refining body crystal, and suddenly a cold air hit.

"Kill!"

A voice appeared directly in Xia Yu's mind, and the voice had a murderous aura. Xia Yu seemed to see a battlefield, a battlefield of countless spirit cultivators and body refiners. Every fighter died in battle without need. The clearest scene is that a warrior in armor leaps high and slashes down with a sword.

"Boss, what's wrong? Did you find anything? Li Wu looked at Xia Yu in a daze and asked.

"It's fine, it just feels like it's killing. You killed, you put it away! Xia Yu threw the transparent refining crystals to Li Wei again.

Xia Yu didn't feel anything when he saw that he was worried, but the sword that was cut off in his mind was always lingering. Pick up the sword, jump up, and slash towards the earth.

With this slash, the figure in his mind dimmed a lot.

Xia Yu carefully recalled this move, and then slashed again. This time, the power is more than twice as powerful as the first slash.

After the second slash, the figure in Xia Yu's mind disappeared, as if it had never appeared.

"Boss, isn't this the trick of the undead just now? You've learned it after watching it once, huh? Cattle! Liwu applauded beside him.

"It's just a façade, let's rest!" Xia Yu continued to meditate around the campfire with a sense of resignation. But Xia Yu's heart was already turbulent.

"Where is this body refining crystallization, this is the inheritance of a physical skill, although it is incomplete, but it is undoubtedly inherited. But there is no reaction from the worries, is it related to the bloodline of my ancient clan? ”

Xia Yu thought about the matter of this refining body crystallization, this undead spirit just now was obviously not a master before his death, if he was a master, then the inheritance left behind would be a rare treasure!

"The Xingyu Temple must know the secrets in the crystals when collecting these refining crystals, so I will be close to the water tower." Xia Yu became interested in this crystal.

"Don't worry, show me all the refining crystals in the future!" Xia Yu and Liwu preached.

"Since there is no upper limit to spiritual skills, then there must be something mysterious about this body refining technique. Although the effect of the earth's martial arts is good, the time is relatively short after all, and it still deviates from the true combat skills of this refining clan. Looks like we're going to be a little busier in the future! Xia Yu made up his mind in his heart.

The next day, Xia Yu and the others walked aimlessly. Every other area, Xia Yu deliberately made some movement to attract the undead underground. The hard work paid off, and finally an undead was attracted by Xia Yu again.

"Boss, look at me!" Away from worrying stepped forward again.

"Boss, this can't work, I can't beat it! Hurry up and help! After a while, he ran towards Xia Yu with a shout.

I saw an undead with good armor chasing after Li Wei, and a long knife had already brought many wounds to Li Wei's body. Just when the knife was about to be cut away, Xia Yu made a move. A knife slashed the undead's long knife, then jumped up and slashed the undead, then turned out a yellow refining crystal from the shattered bones.

At night, Xia Yu held the yellow refining body crystal in his hand, and a figure appeared in Xia Yu's mind again, a long knife, accumulating power between swings, and then slashing out, directly splitting the earth.

Xia Yu did the same, and as the figure in his mind faded, Xia Yu basically understood the way of power and ingenuity of this move.

"This yellow refining body crystal is obviously more advanced than that transparent one, and it is even stronger in terms of the integrity and power of the move!" Xia Yu felt the difference between the crystals of different refining bodies.

As they explored day by day, Xia Yu and Liwei also gained some experience with the appearance of the undead, who were very sensitive to aura, followed by reactions to vibrations and sounds. But there was no reaction to any other insults, fires, wines, snacks.

This was after Xia Yu sacrificed a lot of food and did a lot of stupid things at the request of Xia Yu. After all, how can any normal person insult, praise, and kowtow to the air. That's what Xia Yu can do.

But the benefits are not without it, both of them have obtained a lot of refining crystals, and the spiritual skills of Li Wu have become more and more proficient. On the contrary, it was Xia Yu, who was always there simulating the attack moves of the undead.

And no matter whether Xia Yu is advancing fast or slow that day, he must rest at night and take a bath in the morning. Although I don't understand the worries, I have to follow. But Li Wei never saw the wounds that Xia Yu cracked and healed under his clothes every night.

"No wonder those people call the boss crazy, I think it's quite pertinent!" Leave the dark road.