The passages must be connected, so since the spirits can reach us, we should theoretically be able to follow the ghost cave to their lair.

Thinking of this, I couldn't help but tell Lin Huai my thoughts, and after listening to my words, Lin Huai was surprised and replied: "It is theoretically feasible, and there are strong people in my world who have tried, but I have never heard of anyone who has come back alive." ”

"Okay."

Hearing this, I immediately shrunk my neck, it's better to think less about this kind of thing that has no return, and the ghost knows how many powerful three-star resentful spirits will be waiting on the other side of the passage.

"Then again, the Mentor's movement is much smaller than at the beginning, are they in the passage?" I changed the subject and asked.

Except for the earth-shattering explosion at the beginning, the movement of Shen Chang'an and the four of them over there was much smaller, if it weren't for the fact that the aura was still strong, I thought something had happened to them.

"They bombarded the passage, not the ground, and the attacks were all bombarded in the passage, and of course the attacks inside the passage would not have any movement." Lin Huai said: "The explosion at the beginning should have been that a large number of powerful undead were gathered on the edge of the ghost cave at the beginning, and the mentor wiped them out in one go, so there was such a big movement. ”

"I see."

It dawned on me that the small mushroom cloud at the beginning of the joint effort was not caused by bombarding the ghost cave, but to kill the undead, and I don't know how many powerful undead gathered there would be such a big movement.

Presumably, the four mentors of Shen Changan must have relieved us a lot of pressure, because there must be a lot of undead around the ghost cave, and they destroyed a large number of undead at one time.

And at this moment, the four of them are guarding the entrance of the passage, and the new undead cannot come out of it, which means that the undead who are still in the territory of the copper city cannot make ends meet, and if they kill one, there will be one less.

In this way, our pressure will gradually decrease, and the number of undead will decrease rapidly, and it will be only a matter of time before we destroy them all.

When talking about the black qi scattered in the air after the death of the undead, Lin Huai's answer was similar to what I thought, only to hear Lin Huai say: "The dark qi, the source of the power of the undead, is completely different from ours, and it can even be said that it is incompatible, and the black qi that overflows in the air after their death is called evil soul in our place, which means evil soul." ”

"Evil spirits?" At this time, Gangwon also became interested.

"Yes, this evil spirit is the foundation of the existence of the evil spirits, and after they die, the evil spirits will naturally disperse, and soon form an evil source that is incompatible with the source, we call the full name of the evil source." Lin Huai continued.

"Sounds complicated." I complained, but I actually almost understood what Lin Huai meant, that is, it needed to be digested.

"It's not complicated at all. The souls of all our creatures come from the purest energy in heaven and earth, the source, and it is the source that makes up the soul of all things. And when we die, the soul naturally overflows and returns to its most primitive state, which is the source, you know. ”

Hearing this, we all nodded, what Lin Huai said was common sense, and every cultivator knew it.

"For example, if we compare clay to a source, then the soul is like saying that we make a clay figure out of clay, and the clay figure is made of clay, so when the clay figure dies, it turns into clay." Lin Huai said: "Maybe this example is not so appropriate, but I believe you should be able to understand it better." ”

"We still understand this." At this time, Zhu Rui also nodded in understanding.

"Then let me go on, the evil spirit is equivalent to the human soul to the evil spirit, and the evil source is equivalent to the source of our survival for the evil spirit, now you understand." Lin Huai said.

"Understood." We all nodded.

"So what exactly is this evil source, and why is it incompatible with us?" I threw out a question, and it was the answer I wanted to know the most when I was frustrated by using the power of space.

"I don't know about this, our world has already perished before we have time to study the answer." Lin Huai sighed and said, "We generally believe that the evil source is completely another thing, a thing that is incompatible with the source we rely on, but we don't know what it is. ”

Listening to Lin Huai's words, I nodded slightly, no wonder I encountered such a strong obstacle in exerting the power of space, I think it was the problem of this evil source.

"But this thing is very similar to the source, right?" I then asked.

"That's right, it's very similar, from the perspective of the dark and light systems, the relationship between dark and ghost is like irrational numbers and rational numbers, which seem to be completely different but are inextricably linked, but we don't have the opportunity to study the answer."

Speaking of this, Lin Huai looked a little lonely, and smiled helplessly: "I hope your world can find the answer, this is also a wish of hundreds of millions of sentient beings in my world." ”

Lin Huai's voice fell, and there was a long silence, everyone had something in their hearts.

In our silence, a team of cultivators with a luxurious lineup walked over, and one of the late-stage two-star cultivators said to Lin Huai, "Mr. Lin Huai, how are you resting, we need your help." ”

"It's back to normal." Lin Huai replied.

"Please come with us, we need your knowledge and intelligence, with your help, it will save a lot of deaths." The leading cultivator said.

"Absolutely glad."

Lin Huai was gone, just as the cultivator said, the information about the undead that Lin Huai had on his body would make it much easier for them to fight against the undead.

In fact, if it weren't for Lin Huai's reminder, we would definitely suffer losses in many battles just now, so how else to say that information is the most powerful weapon, it is simply better than the whole army.

After Lin Huai left, I took out a Divine Cultivation Pill and took it in one gulp, one was to replenish my strength, and the other was also to take advantage of the residual heat after the battle just now to see if I could make my strength even more refined.

The battle was fierce in the distance, and we could feel the shaking of the ground from so far away, as well as the sound of explosions and lights in the distance, and the sound of battle everywhere.

From time to time, injured and tired cultivators retreated, and at the same time took a part of the rescued people with them, but the number of people was getting smaller and smaller than at the beginning, and it was estimated that there were not many living people outside the quarantine area, and there were not many people to save again.

After resting for a while, Jiang Yuan and Zhu Rui said that they wanted to fight on the front line again, and I also had this will, so I told Song Feisheng who stayed in the quarantine area to let her take care of Ling Xuan.

So the three of us set off with a team, speaking of which, I still know a few people in this team, it is Su Chenyang, who once carried out the mission together, and his two friends Song Yan and Gu Tengwei.

The strength of this team is stronger than when all the people were dispatched at the beginning, counting Jiang Yuan and Zhu Rui, there are six people in the middle stage, and there is also a captain in the later stage, and the remaining dozen or so people are all in the early stage of the second star, and the lineup is quite luxurious.

It is precisely because of our strong strength that we have directly penetrated into the belly of the copper city, and the powerful undead are basically in this area, and there may even be undead in the late stage of the second star, but we are outnumbered, and we are not afraid of the undead in the late stage of the second star.

"The concentration of dark air in the air here is much thicker than that in the quarantine zone, is it because the more undead die inside, the more powerful they become?" I thought to myself.

The powerhouse in the late stage of the second star is named Zuo Yu, he must be a member of the Zuo family, but he doesn't know who Zuo Chonghua is, so he just listened to Zuo Yu's instructions: "Our task is not to go to the core area to fight with those powerful undead, that has already been solved, our task is..."

Speaking of this, Zuo Yu stretched out his arm, pointed to both sides of this street, and said, "Our task is to clean up all the undead within this street!" ”

"Whether it's a two-star, a one-star, or a second- or third-generation undead who have just been born, we see them for one thing."

"Kill them all!"