10 m ...... 100 m ...... 1000 m ......

Xia Fan controlled the Amethyst Ice Jade Sword, and soon broke through the soft soil on the periphery of the earth's crust, and touched the solid rock, and the difficulty of opening up suddenly increased.

In his senses, the magnetic field of the green head had become much stronger, and the speed of escape had slowed down. This shows that its speed in the lithosphere is also decreasing.

Xia Fan gritted his teeth and continued to urge the Amethyst Ice Jade Sword, smashing the layers of rocks, following the magnetic field of the green calf, and quickly pursued.

He finally knew now why he was as strong as Wu Tianji, and he climbed Taihang Mountain twice in a row, but he couldn't find the trace of Qingli. This big demon's life-saving means are really amazing, he can actually escape far underground, completely hiding his breath, if it weren't for Xia Fan chasing after him, I'm afraid he would have been chased and lost.

"Moo!" Qing Li was also miserable at this time, he didn't expect Xia Fan's will to chase and kill him so resolutely, and he yelled angrily while escaping underground, "Xia Fan, don't you think this is too much?

Its magnetic field fluctuated, penetrating the rock formations, spanning miles of distance, and was picked up by Xia Fan.

Xia Fan didn't talk at all, and buried himself in the digging.

3000 m ...... 5000 m ...... 10000 m ......

He's broken through the groundwater and he's still digging deep underground. Fortunately, thanks to the Amethyst Ice Jade Sword, which sharpens iron like mud and can easily break through rock formations, he has such a terrifying speed, which can be comparable to Qingqiu.

Five hours later.

Suddenly, he felt that the rock layer around him suddenly became extremely hard, much stronger than the rock layer just now. And the temperature of the surrounding rocks is also very amazing.

"I've dug about 35 kilometers in total, and I've pierced the lithosphere of the earth's crust and into the upper mantle. Xia Fan meditated on the structure of the earth, which is divided into several parts, such as the crust (lithosphere), the upper mantle, the lower mantle, and the core. As it enters the mantle, the density of the surrounding rocks increases dramatically, and the temperature soars.

However, this has an impact on him, and it also has a great impact on the green calf, and the distance between the two is rapidly narrowing.

Just when he was slightly happy in his heart, suddenly, Qingli's magnetic field disappeared directly from his induction.

"Hey, what's the matter, that green bully is gone?" Xia Fan's face changed greatly.

"No, in such a deep underground, no matter how clever the Qing Xuan Escape Technique is, it is impossible to get out of my control in an instant. Xia Fan quickly analyzed, and finally came to the conclusion that it must be Qingli's magnetic field, which was shielded by something. Is there something that can shield the magnetic field from this underground?

Xia Fan did not stop, but poured a stream of energy into the Amethyst Ice Jade Sword again, sensing the direction where the green squid had disappeared, and continued to dig forward.

After digging for about three thousand meters, the rock formation in front of him suddenly disappeared, Xia Fan felt that his feet were empty, and then his body fell sharply.

With a "snap", when he hit the ground, he rolled on the ground, looking around cautiously.

It didn't matter if I looked at it, I was stunned.

In front of me is a huge space, with dark red mantle rock formations as the sky, and the black earth under the feet, and huge buildings made of bronze pouring, standing majestically, including palaces with eaves and walls, pavilions, and stone bridges carved with dragons and phoenixes.

"Xia Fan, don't deceive people too much. At this moment, the young man was standing on the stone bridge, and the two bull's eyes glared at him angrily, full of anger.

"Not escaping?" Xia Fan stepped on the black ground, and found that the ground could automatically absorb magnetic field fluctuations, and it contained a large number of metal elements, and immediately laughed.

The ground is made of metal, and Qingqi is only good at soil and not gold, so it can't run away if it wants to.

"I'm fighting with you!"

Qing Qi screamed, blue streamers erupted from his nostrils, and his hooves ran wildly, like a huge mountain, with a loud rumbling sound, crushing towards Xia Fan.

Xia Fan flicked his fingers and snorted, and the amethyst ice jade sword immediately turned into a purple light and galloped away. The purple light descended on the head of the green calf, and with a slight circle, the two horns on its head were easily cut off and fell to the ground. It was startled, and a dog came directly to gnaw on the mud and fell on all fours.

It got up from the ground in a panic and quickly stepped back again, staring at the purple light, revealing a strong jealousy. It can be said that the strongest part of its body is the two horns. However, this amethyst ice jade sword can be easily cut, and it is naturally easy to take its life.

In this space full of metal elements, its earth attribute Dao species was suppressed to the greatest extent, and its power was seriously weakened, less than the third layer at its peak.

"Slowly, human beings, we have no grievances and no enemies, and there is no need to fight for life and death. Qing Li's heart was weak for a while, and there was a pleading look in his eyes, "We can talk again." ”

"I'm not talking to a man-eating monster, I don't have anything to talk about. Xia Fan snorted coldly, and with a wave of his big hand, the amethyst ice jade sword was aimed at Qing Li's head.

"I was originally a domestic animal, hard-working, getting up early and working late to work for humans. I have a relationship with human beings. Qing Qian hurriedly shouted.

"I have your sister's feelings!"

Xia Fan couldn't help but be rude, too lazy to talk to it, waved his big hand, and "snorted", and the purple light had reached the front of Qing Qi in the blink of an eye.

"Moo! Xia Fan...... You will kill them all, and I will never let you go. Qing Li screamed wildly, knowing that he was invincible, he actually rushed into the bronze hall opposite.

And at the moment when it rushed into the bronze hall, the whole hall was like a lightning strike, and there was a deafening roar, and all the pillars, the roof of the hall, and the horizontal trees ...... All of them shined amazingly. Even the various beast patterns on the buildings seem to come to life.

And the Amethyst Ice Jade Sword was about to stab Qing Li, but when it was at the entrance of the hall, it was suddenly blocked by an invisible barrier, and it immediately rebounded back.

Xia Fan's face changed slightly, and he once again injected a stream of energy into the sword body, pointing at the door of the hall.

But then, after a loud bang, it was blocked again, and the sword body buzzed, trembling, and it was difficult to move an inch.

"What's going on, this bronze hall has the ability to defend itself. Xia Fan's eyes were full of surprise. Without saying a word, he shook his body and appeared at the door of the main hall, and rushed inside. With a "bang", he himself hit the invisible barrier and was blocked back.

When he reacted, he found that the hall had regained calm, and the thunder and loud noises had all disappeared, as if nothing had happened.

It was only at this time that he discovered that there was a stone tablet standing in front of this bronze hall.

"Qingyuan Palace, the place where Qingyuan Thunder Heart Palm is inherited, only one person can enter at a time, and the first stage of inheritance ...... will be obtained after three days."

All of these texts are written in the Yaxing script.

"This is actually a hall of inheritance?"

Xia Fan's heart sank, the Qinglu rushed into the hall just now, and it must have been regarded as the inheritor by the Inheritance Palace, and then it had to be passed on to its so-called Qingyuan Thunder Heart Palm.

Hearing this name, this exercise alone must be extraordinary, which made him feel a strong sense of crisis in his heart. After three days, when Qingli comes out of the Qingyuan Palace, his combat power will definitely skyrocket.

"Go and see the other temples. Xia Fan hurriedly turned to the other palaces and began to search.

He found that there were a total of eighteen similar inheritance halls, each of which taught different exercises, and the time was long and short, the short one only took three hours, and the longest even needed to stay in it for more than half a year.