What Mo Han said was indeed right, Xiao Yu and the three of them walked forward for less than a quarter of an hour, and they reached the deepest part of this cold jade mine cave, to be exact, it should be the deepest part of the cave that someone has mined, as for what is behind the cold jade wall that seals the passage, no one knows.

"Okay, let's rest on the spot, and by the way, we can eat something to recover our strength, and there is no way down, if we want to go down, we have to dig it ourselves." Since it was already the end, Xiao Yu was not hypocritical, so he stopped the two of them to sit on the ground to recover their strength.

"Look. Mo Han pointed to the cold jade stone wall blocked at the end and said to Xiao Yu. "I heard from the miners here that they couldn't advance where they were now, and they couldn't cut through the stone wall no matter what they did. They also told Wu Lingfeng about this, but he didn't care, and he didn't bother to come here, so he put it on hold. ”

"What? Is there anything different about this wall?" Xiao Yu gently knocked on the stone wall with his hand, and after eating the sound of dong dong, there was no other movement.

"You look around. ”

Hearing this, Xiao Yu looked around, it didn't matter, Xiao Yu's heart suddenly tightened. I saw that the cracks that were originally left on the cave wall extended all the way to the stone wall, but there was not even a trace on the stone wall, and the smooth one could almost reflect the human figure, which showed that the sharpness of the wind knife could not destroy the stone wall at all, which showed how hard it was.

Thinking of this, Xiao Yu reached out and touched the cold jade stone wall, and a smooth and delicate touch was transmitted from the jade bi to Xiao Yu's fingers, not to mention cracks, not even a little flaw, which shows how hard this stone wall is.

"Apprentice, the teacher can tell you for sure that there must be chalcedony behind this stone wall, and it is not impossible for the essence of the jade liquid to exist. Ye Lao's voice echoed in Xiao Yu's heart at this moment.

"Master, how can you see it?"

"This stone wall. . . In fact, it is not a wall, to be precise, it should be a jade egg, the place you are touching now is the location of the egg shell, and the place where they mined it before was just a cold jade evolved from a little chalcedony breath exuded from this shell. ”

"So that's the case, so if I can break this shell, can I enter the very center of this cold jade vein?"

"Yes, theoretically speaking, this shell is not very thick, according to the teacher's calculations, it is only one or two zhang at most. ”

"But Master, with the hardness of this jade shell, do you think I can break it? ”

"Of course, the teacher doesn't let you go in directly from here, everything must be reversed and easy to break, like this jade shell, although it has been hard to the extent that the gold and stone are difficult to damage in the slightest, but there is always a place that can be broken. You try to activate the Five Elements Duel to feel the earth attribute in this jade shell. ”

"Okay, then I'll give it a try. ”

With that, Xiao Yu instantly activated the Five Elements to overlay the ground, and the soft earth-attribute spiritual power overflowed from the palm of his hand, slowly extending to the jade.

Feeling the earth attribute condensed to the extreme in the jade, Xiao Yu's spiritual power was not able to integrate into it for a while.

After trying many times, it was all the same effect, and Xiao Yu was about to give up, after all, even if he used the earth attribute to induce, he had to integrate his spiritual power into it. However, at the moment when Xiao Yu was about to withdraw his hand, he clearly felt that the earth attribute in the jade bi actually responded to him.

Xiao Yu, who was surprised, took advantage of the situation and launched more spiritual power to explore the jade. Slowly, a huge eggshell-like silhouette appeared in Xiao Yu's mind.

"Master, I feel it. Xiao Yu was pleasantly surprised to tell Ye Lao the good news.

"Let's try to find the weakest point of this jade shell. ”

Xiao Yu kept in touch with the Jade Shell Middle Earth Attribute and searched little by little.

About a stick of incense after the time.

"Haha, I found it, it's thirty zhang to the left from here. Xiao Yu laughed loudly, and at the same time startled Mo Han and Feng Yao, after all, Xiao Yu, who was holding the wall with one hand, had been silently maintaining this posture for a long time, and suddenly laughed, coupled with being in such a claustrophobic environment, it was strange not to be scared.

"What's wrong, Xiao Yu? Mo Han calmed down and asked Xiao Yu.

"Yes, Childe, what's there to the left thirty zhang... And you have this surprise is too scary. Feng Yao was already a little out of breath, and coupled with Xiao Yu's fright, her pretty face suddenly lost her blood, and she couldn't help but complain about Xiao Yu.

"Uh... Excuse me... I'm a little excited. Xiao Yu touched his nose with his hand, a little embarrassed. "There's a gap in the jade on the left, and we can go there and find out if there's a way to get in. But before we can do that, we'll have to dig it up... ”

"This... Do you mean the stone wall extends all the way to that side?"

"To be precise, it's a jade egg, and this hard jade is his shell, just like an egg. ”

"Oh, this is the first time I've heard of something like this, so let's dig it. As soon as he heard that this was the case, he immediately aroused Mo Han's interest, and he took the lead and began to work, and the tools he used were of course the treasure blades cut from Wu Lingfeng.

About an hour later, with the efforts of Mo Han and Xiao Yu, the three of them finally came to the location where the crack was.

"This... Will this seam be a little smaller? . . Mo Han couldn't laugh or cry, only to see that this gap was only a foot long, and the width was only about the thickness of a hair, and the stone wall next to it was still as hard as before.

"Just have a seam, look at me. With that, Xiao Yu unleashed the Burning Sky Fire Sword, confined the power of the flames into the sword body, and a forward stab was about to insert it into the gap.

"Bang. ”

The tip of the sword and the stone wall came into close contact for the first time, but this time the effect was not good, or it was not effective at all. The tip of the sword did not penetrate even a single inch into the gap.

"I'll go, and sure enough, it's still very hard, so I don't believe it, master. Xiao Yu's stubbornness also came up, and he stabbed the crack with his sword at once, and every time there was no other response except for the anti-shock power that came from it.

"I don't believe you're evil!"

"I'm fighting with you!"

While chattering in his mouth, he slammed into the jade with all his strength.

In fact, Xiao Yu was also a little helpless in his heart, if it weren't for the fact that Ye Lao had affirmed him, he would have been able to open this layer of jade shell from this gap, and Xiao Yu would not have had so much patience to compete with it.