When Ao Jie talked about her experience, she was a life-threatening death and escaped from the situation of death several times. This ability made Sun Wukong look at her with some admiration. Not to mention anything else, she was a little scary in her ability to survive in desperate situations and her sense of crisis.

Tang Sanzang also had a deep understanding of her awareness of prevention. He had never seen that monster install so many surveillance cameras in his cave, and had also set up a surveillance room. This was simply a weird thing among monsters.

After turning around the passage and passing through several stone doors, everyone had already reached a place that was unknown deep below the ground, and then through a thick stone door, a jingling sound came.

"It's right ahead." Ao Jie stopped and pointed to the front and said.

Tang Sanzang looked up and saw a long passage in front of him, about ten feet high, with a pile of fires lit on both sides of him about ten feet. The passage was a little curved and I don’t know where to extend. Only the sound of mining ding dangling came from afar, and the depth of the water could be heard vaguely, as if there was an underground river nearby.

"King." A green-skinned little demon came forward quickly. It should be some kind of water demon. He glanced at Tang Sanzang and others, and then quickly took his eyes to the ground. The auras of those people were more terrifying than the other, so how could he dare to look at them a few more times?

"Take out all the black Yuan crystals mined during this period." Ao Jie nodded and said expressionlessly.

"Yes." The little demon responded, ran away again, and soon came forward with another little demon, carrying a box with another little demon, carefully placed it on the ground, opened the box, and there were six black Yuan crystals the size of a fist.

"That's all?" Ao Jie frowned slightly, a little displeased.

The two little monsters were suddenly silent, and one little monster mustered up the courage and said, "King, this mineral vein seems to have ended, and now we may not be able to find one in a day."

"So much is too little! Did you dig it in one box after another before?" Zhu Tianpeng, who was beside him, was no longer calm. He squatted down and looked at the black Yuan crystals in the box, picked up one and sensed it carefully, which was similar to the quality in the cave. However, because it was just dug out, the energy inside was still complete. Such a black Yuan crystal as big as a fist can be sold at a sky-high price for those in need, and Ao Jie was still not bad.

"At this level, there should be five or six hundred pills dug out." Ao Jie looked at Zhu Tianpeng who was a little surprised and said hesitantly.

"Five or six hundred!" Zhu Tianpeng's eyes almost popped out. Looking at Ao Jie, he said a little disgusted: "If you got the old virgin of Taishang Laojun, the elixir you had already piled up you to the Demon King Realm, and now you are still stuck in the Demon King Realm."

Ao Jie was also stunned when she heard this. She didn't expect that these stones had such high value and could even change the elixir from the Taishang Laojun.

"For us, only three pieces are enough, but it's good to use this thing to set up a formation. If possible, it's good to take a little more." Zhu Tianpeng put the black Yuanjing in his hand back into the box and looked at Ao Jie and said, "Take us to see the mine. If only six pieces are left, it's not enough for you to change the formation."

"Okay, if the number is enough, I only need enough Black Yuan Crystals to arrange the formation, and you can take the rest." Ao Jie nodded, and also heard what Zhu Tianpeng said. He immediately said, then waved his hand to signal the two little demons to lead the way, and everyone walked in the passage.

The passage winds, and the white jade hairpin is coming to an end. More than a dozen small monsters are waving their tools to chisel on the stone wall. The steel and stones collided and made a clanging sound, and sparks burst out. Although they were all monsters, the progress was not fast. It can be said that every hammer was careful when it went down, and they had to come forward and look carefully for a while to ensure that the next hammer would not smash the treasure the king wanted.

"Because the spiritual consciousness cannot penetrate, the mining efficiency is very low, so I can only dig slowly like this." Ao Jie explained.

Zhu Tianpeng walked forward a few steps, reached out to touch the mining stone wall, tapped it lightly again, nodded thoughtfully, turned around and looked at everyone and said, "This is a little less efficient. We don't have time to continue waiting here, and how could this mine be at the end? At most, it's just the middle section."

"Middle section?" Everyone was surprised when they heard this.

"That's to say, can I get enough of the black Yuan crystal I need?" Ao Jie's face was even more happy. Breakthrough was undoubtedly important for her. Only when she reached the Demon King realm could she be closer to revenge and rescue of the tribe. This was almost the meaning of living for her.

"Yes." Zhu Tianpeng nodded, and pointed to the little demon who stopped and stood by with his hands down respectfully and said, "You ask them to retreat first, and we will hand over the mining task. All the black Yuan crystals will be mined in one afternoon."

"Well? Does Marshal Tianpeng have a way to solve the problem of the inability to penetrate the spiritual sense?" Ao Jie said in surprise.

"If it can penetrate, then this black Yuan crystal will not be so valuable." Zhu Tianpeng shook his head and stroked the Qiankun bag around his waist. All kinds of materials appeared in front of him, with more than a dozen crystals and metals. "I'll make a detector. If there are black Yuan crystals within three feet, you can detect them. If you determine the location, you don't have to worry about digging them."

"There is such an operation?" Even Tang Sanzang was a little surprised. It can be said that sometimes Zhu Tianpeng's mind is really useful, as long as there is no girl she wants to guide her.

"Master, I'm super amazing." Zhu Tianpeng received it without hesitation, took out a silver pen and wrote it quickly on several crystals. After writing some runes that I couldn't understand on each material, he waved his hand and all the materials began to reorganize in the air, and finally turned into a disc about one foot with three small grooves in the middle. Zhu Tianpeng pressed the three small black Yuan crystals he had obtained before, and formed a seal on the disc. The disc light flashed, and an image screen appeared above. The light of the three black Yuan crystals was connected into a line, and red dots appeared on the disc.

"Senior sister, is this OK?" Sha Wanjing came forward and looked at the disc and said curiously.

"Of course." Zhu Tianpeng nodded confidently, made a seal in his hand, and the disc flew out, moved up and down against the surface of the stone wall, and finally stopped at the upper left corner, with a flashing red light appearing on the image.

"Xiaobai, let Xiaojin dig it open and see, about two feet." Zhu Tianpeng said to Ao Xiaobai.
Chapter completed!