About forty minutes after Zheng Lei and the others entered the cave, outside the boiler room, a group of black-clothed people came, their whole bodies were wrapped in black, and only two eyes were left to emit a reddish glow in the dark night, which was very terrifying.

These people stood on either side of the boiler room door, shooting in two columns, as if waiting for someone.

A moment later, a man wearing a black felt hat and a black tunic walked over slowly, and he pressed the brim of his hat very low, completely covering a face that was not very large.

After the man appeared, the two columns of people stood up respectfully and looked at him with solemn expressions.

His steps were well-proportioned, and he slowly walked into the boiler room.

Standing next to the boiler, he filled the coal pit on the ground, and then turned his head towards the small room door, the boilermaker who was standing and did not dare to move.

Although the boilermaker couldn't see his expression, he also knew that he was himself, and he was as nervous as sifting chaff.

"Master, I'm ......," the boilermaker said nervously.

The man in black was silent, but when he saw a "bang", the boiler worker hit the wall and spit out a few mouthfuls of blood.

"What's the point of you? Let all four of you get in. The man in black said angrily.

"The subordinates are guilty, the subordinates should be damned......" The boilermaker trembled uncontrollably.

"Get out!" shouted the man in black.

Suddenly, two men in black stepped forward and took the boilerman away.

The man in black slapped his palm in the coal pit, and shook away all the remaining coal in it at once, and a man in black on the side hurriedly came over to help him open the door of the hole, and the man in black said coldly: "It's all for me, if there is any accident, you can end it." ”

In the depths of the cave, the suction power decreased rapidly, and Zheng Lei and the four of them used this powerful suction power to advance a lot of distance. At this moment, they have arrived at a place similar to a door, if only from here, the terrain here is more like an ancient tomb, with a stone door, the stone door is well sealed, and the gap between the two stone doors can't even stuff a piece of paper into it.

Through the stone door, several people felt a burst of suction coming from inside the door that had not completely dissipated.

"Find a way to open it. Zheng Lei proposed.

Old man Liu nodded and said, "You are learning the Five Thunder Method, which is the most suitable for blowing up the door, so you can try it first." ”

Zheng Lei nodded, the power of the mixed yuan surged into his hand, the five thunder tricks pinched up, and pressed on the stone gate suddenly, after a muffled sound, the stone gate did not move at all, and the huge thunder force was sucked away by that suction, and it did not act on the stone gate at all.

"No, it's useless. Zheng Lei turned his head and shook his head at the other three and said.

At this moment, the man in black who had just entered the cave was suddenly stunned, stunned for a moment, smiled coldly, and said, "Don't measure yourself, Black Water Xuanshi, how can you break it?"

In front of the stone gate, Old Man Liu stared at the place where Zheng Lei was pressing just now, and said in surprise: "Such a big piece of Black Water Stone, what is it in it that can be blocked by people with such a precious Black Water Stone?"

"Senior, is it really the Black Water Xuanshi?" Lin Xi also asked nervously.

"In addition to the Black Water Xuanshi, what other stone can be shocked by the Five Thunder Fa? And your stone, from a distance, is white, and when you get closer, it is black, and the word we see in the distance must be the thing behind this door, but now can you get it?" said the old man Liu, pointing to the stone gate.

"Cousin, what is the Black Water Xuanshi?" Zheng Lei asked.

"Black Water Stone, legend has it that it is not a stone in the world, but a remnant of the fairy world, no one knows whether it is an entity, or illusory, even if it has it, it is impossible to tell whether it is real or illusory, but what can be known is that this Black Water Stone, when it is strong, it is strong, no matter how much strength you use, you can't break it, and all the substantive things can't pass through it, and all the energy things can pass through it, it's nearly black, far is white, near opaque, far away is nothing, and it can't be found at all。 Lin Xi explained.

"Then how do we get there?" Zheng Lei asked.

Old man Liu and Lin Xi shook their heads at the same time, and at this time, Hu Xiaowan said in a very small voice, "Can we make a hole?"

When the three of them heard this, they brushed her together, and suddenly her face turned red, and she said resignedly: "I'm just proposing." ”

Zheng Lei laughed and said, "That's right, why can't we make a hole to go over? Even if he has a black water stone blocking the way, do we have to break this broken stone to get through?"

Speaking of making holes, Zheng Lei is really not afraid, although the earth technique is not the same as making holes, but it is also walking in the land, if you want to bypass this black water stone from the ground, it is not a difficult thing, after all, the person who arranges this place, it is impossible to make the black water stone deeper than the earth's crust.

"Cousin, let's use the earth-walking technique to bypass it. Zheng Lei said happily.

Lin Xi nodded, the four of them pulled together, and the two of them pinched together, and suddenly the four of them disappeared into the land, and there was no trace left on the ground.

After saying that, the man in black who rushed into the cave and hurried away was suddenly stunned, and said secretly: "It's not good, did they get it?"

In just one breath, he rushed to the front of the stone gate, so fast, it didn't seem easy for him, he quickly gasped, pressed a hand on the stone door, felt it carefully for a while, and said to himself: "Fortunately, it was not broken." ”

After saying that, he lowered his head to the ground, saw a few inconspicuous footprints, his whole body was stunned, and pouted: "Tuxingshu, since this is the case, you can stay here!"

"Pointing to the ground into steel!" he pinched his right hand and pointed to the ground, which immediately started from under his feet, and the ground continued to harden, like a storm, chasing Zheng Lei and them.

Let's say that Zheng Lei and Lin Xi pinched the soil avoidance trick and didn't enter the soil, and they kept descending for nearly fifty meters before they walked to the edge of the black water Xuanshi, and hurriedly walked forward, just walked out not far away, Zheng Lei felt a strange breath behind him, Lin Xi also felt this breath, the two didn't say a word, and at the same time shot a sword qi towards the top of their heads, and followed the sword qi to rush up wildly.

The ground under their feet, like a fierce beast, continues to pursue them, and it may swallow them at any time, and the ground with hardened eyes has reached their ankles, and the situation is very critical.

Suddenly, Zheng Lei and Lin Xi felt a lightness in their hands at the same time, and the four of them rushed out of the ground at once, and their feet hardened instantly.

After standing under his feet, Zheng Lei found through the faint light of the Huolin Sword that they had arrived at a hut, and in the center of the hut, there was a small stone platform, on which a complex formation was engraved, and in the center of the formation, there was a purple gold red gourd, and white gas continued to pour into the gourd's mouth.

Zheng Lei stretched out his hand to shoot a fireball, but it was extinguished instantly, and all the energy on the fireball was absorbed by the gourd in an instant, but it was the flash of the fireball, which made Zheng Lei clear that the gourd belly of the purple-gold red gourd was shining with a bright golden word: Jing.

Suddenly, there was a sound of the machine turning on the other side of the room, and Old Man Liu hurriedly shouted: "Xiao Lei, hurry up and take the gourd, we will cover you!"

Zheng Lei listened, without saying a word, he stretched out his hand and grabbed the gourd, and the other three people also put up their own posture to protect Zheng Lei's surroundings.

Zheng Lei's hand grabbed the gourd, and bursts of milky white light suddenly appeared on the gourd, blocking his hand, and for a while, he couldn't even penetrate it even a little.

The sound of the machine continued continuously, Zheng Lei's heart was anxious, and the power of the mixed yuan in his body frantically surged to his right hand, but the resistance from the gourd became stronger and stronger, and he could not enter within an inch of the gourd.

Zheng Lei glanced back anxiously, only to see that the stone gate also began to slowly leave a gap, and outside the gap, a violent voice came: "Stop!"

Of course, Zheng Lei would not stop, but increased the output of strength, but his strength was still not enough, he could not withstand the resistance of the gourd at all, and his heart was very anxious, and the two corners of his forehead suddenly ached, making him suddenly remember the power he got from the mountain dragon vein twice.

So he hurriedly called out in his heart: "Jade Dragon, Longmen, lend me a little bit of the strength of the two of you, I don't know if you can feel it from such a distance, I need your help now, and your brothers also need your help!"

I don't know if it was his call that the dragon veins of these two mountains heard, or if the power that had been given to him began to awaken, two milky white rays of light appeared from the two horns on his forehead, and instantly covered his whole body, and then condensed towards his right hand.

In an instant, the milky white light on Zheng Lei's body and the milky white light on the gourd blended together.

At this time, the stone gate was also opened less than a foot wide, and a black shadow suddenly rushed in, Old Man Liu, Lin Xi and Hu Xiaowan had already prepared, and each attacked towards the black shadow, the speed of the three of them was already extremely fast, but they only hit an afterimage.

The speed of the black shadow was too fast, and even if the three of them attacked at the same time, they wouldn't hurt him at all. It was the man in black who rushed in, wearing a black felt hat and covering almost all of his face.

After rushing in, the focus of the black-clothed man's eyes immediately focused on the gourd on the stone platform, and when Zheng Lei's hand was about to touch the gourd, he desperately increased his speed, like a light, past Old Man Liu, Lin Xi and Hu Xiaowan, and directly pressed on Zheng Lei's body with one palm.