"I would like to remind the master that this ore vein is the same as other ore veins in the Demon Refining City. Are you sure you don't need to go to that hidden small world and absorb a wave?" Just when Tang Yu was slightly sad, Xiao Qi's voice suddenly rang in Tang Yu's mind.

"What?" Tang Yu was stunned when he heard Xiaoqi's reminder, then he showed an ecstatic expression on his face. He couldn't help but say in shock: "Xiaoqi, are you sure you are not kidding. There is actually that kind of place in this small mineral vein?"

Xiao Qi nodded affirmatively and said, "That's of course. Although I don't know what the ore veins in the Demon Refining City are like, it's certain that since this ore veins are also part of the ore veins in the Demon Refining City, there must be such a small world hidden in this ore vein, and I have discovered him!"

When Tang Yu heard Xiaoqi say this, he was not excited!

He said hurriedly: "Why are you still standing there? Take me there now! Only in this place, the large number of evil demon crystals that exist can improve my cultivation."

Tang Yu said, thinking about his current situation, and a rather helpless look appeared on his face. After shaking his head, he sighed slightly.

Chi Qiu and others were confused by Tang Yu. Tang Yu was originally happy, but suddenly, he became very lonely again. After this ecstasy, his sad look made Chi Qiu and others feel inexplicably, thinking that Tang Yu was sick.

"Tang...Brother Tang, are you okay?" Chi Qiu hesitated for a while and couldn't help asking.

"It's okay, what can I do!" Tang Yu shook his head, the excitement on his face could not be concealed at all, and he said, "There are some good things in this mine vein that we haven't gotten away, why don't you... go and have a look with me?"

"That master, the small world with a large number of evil demon crystals is not particularly stable, so it is already the biggest limit for us to enter. If Chi Qiu and the others are allowed to go over, something unexpected will happen!" Xiao Qi hurriedly reminded him when he heard Tang Yu's words.

"Is there such a thing?" Tang Yu suddenly laughed awkwardly on his face, looking very embarrassed. He secretly glanced at Chi Qiu and others, and said awkwardly:

"Why! I forgot one thing. The place where there are treasures in this world is very unstable. Only Xiaoqi and I can go in, and I can go in with Xiaoqi's help. At that time, when you arrive at the place, if you want to go and see, I can ask Xiaoqi to take you down, but I can only watch it one by one."

"Brother Tang, where is it?" Originally, Chi Qiu and his group were still very excited, but when they heard Tang Yu say this, they suddenly became stunned and asked curiously in a confused tone.

Tang Yu thought about it for a while, and finally decided not to hide anything from Chi Qiu and the others, and said directly: "About these mineral veins in the Demon Refining City, I actually found that those insect spirits act as energy conversion. They absorb the corpses of those cultivators in order to accumulate energy and transform them into evil demon crystals."

"We have guessed this a long time ago." Haiya said from the side.

"Listen to me first!" Tang Yu waved his hand, interrupted Haiya's words, and continued, "But you know, if it's just like this, don't you think that the mineral veins in the Demon Refining City are actually too many evil demon crystals that are refreshed every time?"

"Isn't it good to have too many?" Xia Tangming couldn't help but say.

"Shut up, listen to the master." Xuan Yunxing glared at Xia Tangming with annoyance and hummed.

Xia Tangming muttered in a low voice that only he could hear, but no one could hear what he said.

Tang Yu continued to say: "With Xiao Qi's help, I found that these mineral veins are actually connected to an unstable small world, and that small world is full of evil demon crystals."

"How is this possible?" Haiya exclaimed first.

As an indigenous person of the Demon Refining City and one of the four deputy city lord families, she had never heard of the situation Tang Yu said, and she believed that no one would have discovered this situation, otherwise, the several mineral veins in the Demon Refining City would have been exhausted long ago.

"It's really unlikely! Isn't that the number of evil demon crystals that exist in these small worlds is very terrifying, and they have not dried up for so many years?" Chi Qiu said.

"It is certain that there are many, but in fact they are also slowly consuming. Those insect spirits absorb the corpses of those cultivators, and it is impossible for them to transform so many evil demon crystals into one go at once. This takes time. A batch of evil demon crystals can only appear again. For example, the corpses of practitioners absorbed by insect spirits may have to wait until decades or even hundreds of years before they can completely become evil demon crystals and be refreshed into the ore veins." Tang Yu explained.

Looking at the thoughtful look on everyone's face, Tang Yu waved his hand and said, "Of course, this is also my current guess. So I can't tell you exactly what's going on now. But I did find that the small world hidden in these mineral veins, Xiao Qi leads the way. Let's go over now to open your eyes."

"Okay! Master." The boy responded with great joy, and then took everyone to fly towards the location where the small world is.

After about half an hour, almost all the edge of the ore vein could be seen. Xiaoqi finally stopped, pointed to a bare stone mountain with only stones and soil in front of him, and said, "Master, the hidden small world of this ore vein is in that mountain. You can wait, and I will build a portal that can be entered now."

Xiao Qi became busy in an instant, and the purple light in his hand rushed towards the stone mountain ahead like meteors, and then slowly gathered at the foot of the stone mountain halfway up the stone mountain, except for a relatively large purple portal.

"Who are you willing to be the first investigator?" Tang Yu asked with a smile as he looked at everyone's eagerness.

"Brother Tang, let me do it! My cultivation is quite high. If I encounter any danger, I can react as soon as possible." Chi Qiu said.

"Yes, then let you be the first one!" Tang Yu did not refuse Chi Qiu's initiative to ask you, and happily agreed.

However, after agreeing to Chi Qiu, Tang Yu did not let Chi Qiu go like this, but instead gave a serious reminder:

"The world barrier of that small world is really fragile. After you enter, you must be careful not to use true energy to cause fluctuations, otherwise... If this small world collapses and you don't have time to come out of Xiao Qi's portal, you may be completely lost in the crack of the void, and even... the moment you enter the crack of the void, you will be swallowed by the power of time and space inside."

Seeing that everyone was disregarded, Tang Yu snorted angrily: "Don't think I'm exaggerating. Let me first state that I have reminded you now, but if your keys don't listen to me, there will be danger inside. Don't blame me for not saving you. Of course, I don't have the ability to save you at that time."

Seeing Tang Yu's angry look, everyone didn't dare to smile anymore. Even Chi Qiu didn't dare to go into this small world again and said tremblingly: "Brother Tang, why don't we go in? You just go in and get all the evil crystals inside?"
Chapter completed!