After the buzzing Demon Cave calmed down again, Lan Wangji turned to Wei Wuxian and said, "You continue."

Su She's eyes were filled with rage, but his upper and lower lips were glued tightly together, and his throat was dry as fire. Compared to the anxiety of not being able to open his mouth to attack Wei Wuxian, what made him even more anxious now was the humiliation of being controlled by Lan Wangji. He repeatedly scratched his throat with his fingers, trying to remove the forbidden spell, but to no avail, so he had to look at Lan Qiren. Unexpectedly, Lan Qiren's face was cold and motionless, and he didn't even look at him. Originally, Lan Qiren could have removed the forbidden spell, and as long as the elders of the Lan family removed the forbidden spell, Lan Wangji would never cast a spell on him again out of respect. But the Moling Su family and the Gusu Lan family had a lot of unpleasantness, so Lan Qiren had no intention of helping him remove the spell at this time.

Everyone understood. It seemed that whenever someone tried to argue with Wei Wuxian, Lan Wangji would shut him up. However, there were always brave warriors who stood up at such times and taunted him, “Wei Wuxian, you really are worthy of being the Yiling Patriarch, right? You are so domineering. Are you planning to stop people from speaking?”

Wei WuXian said, “How strange.”

Lan Sizhui asked, "Senior Wei, what's so strange?"

Wei WuXian said, “This Sect Master Su has been acting strangely since a while ago. When the zombies surrounded us, he urged those who had lost all their spiritual power not to seek survival but to quickly die together. Now he is blocking my mouth and not letting me question him. He is also constantly trying to provoke me, as if he is afraid that you will live a moment longer. What’s the logic behind this? Is there any way to be an ally like this?”

After Wei Wuxian mentioned this, many people had doubts in their hearts: it seems that this Sect Master Su has indeed said too much today. However, since others did not express their opinions, it was not convenient for them to express their opinions, so they all chose to remain silent cautiously. Another group of people began to secretly wonder what they had done before or on the way up the mountain. Wei Wuxian looked at the disciples of the Moling Su Clan, who were standing very far away from the disciples of the Gusu Lan Clan, and the latter did not even bother to spare a glance for the former. The more he looked, the more he felt something was awkward, and asked Lan Wangji in a low voice: "Hanguang-jun, let me ask you, the Gusu Lan Clan and the Moling Su Clan are both music practitioners, and Gusu and Moling are not far from each other in the Jiangnan area. Generally speaking, shouldn't the relationship be okay? Why does it feel like the relationship between the two families is very bad?"

Lan Sizhui and Lan Jingyi squeezed over. When Lan Jingyi heard this, he said loudly, "Of course the relationship is bad!"

Lan Wangji said: "The Moling Su clan is a branch that separated from the Gusu Lan clan."

Wei WuXian asked, “What?”

Lan Sizhui covered Lan Jingyi's mouth and whispered, "Senior Wei, you don't know. The Moling Su Clan was founded by a non-Chinese disciple who left the Gusu Lan Clan. Since they couldn't get rid of the shadow of the clan, their secret skills are similar to those of the Gusu Lan Clan. They are good at music, and even the first-grade spiritual weapon of the head of the family, Su Minshan, is a seven-stringed ancient zither similar to Han Guangjun's."

Wei Wuxian looked back at Su She, whose face was gloomy, and was speechless. Lan Jingyi broke away from Lan Sizhui and said angrily, "Not only that, but there are more bizarre things to come! This Su Zongzhu... Okay, I know I have to speak softly! This Su Zongzhu not only learns everything, but also particularly hates to hear people say that he learns from our Han Guangjun, otherwise he will immediately turn hostile. How can there be such a person in the world!" Hearing him getting louder and louder, Lan Sizhui said helplessly, "Jingyi!"

Su She had heard everything clearly. His face was livid, his eyes were full of anger, and he spat out a mouthful of blood. He finally broke the spell of silence with all his strength. But when he opened his mouth, his voice was hoarse as if he had aged ten years. He said, "What a noble and upright Gusu Lan family, full of famous scholars, the best in the Xuanmen! So this is how they teach their disciples!"

Sect Leader Ouyang said, “Sect Leader Su, we are facing a powerful enemy, so we must not hurt the harmony among our own people.” Su She sneered, “Our own people? Look at the Gusu Lan Clan, everyone is in a mess with Wei Wuxian, how can they be considered our own people?”

When he said that, the other members of the Gusu Lan Sect were not happy. Lan Qiren looked at him and said nothing. An older, high-ranking guest official showed annoyance on his face: "Su Minshan, even if you are not a member of the Gusu Lan Sect now, you must be careful with your words!"

Immediately, a disciple of the Moling Su Clan stood up and said, "Our clan leader has long since left your Gusu Lan Clan. Who are you to speak to him like this?"

Lan Jingyi had long been resentful of the Moling Su Clan, and shouted: "Your clan leader is in such a high position now, wasn't it because of the teachings of our Gusu? Why can't we say anything when he bites back?"

In the Demon-Suppressing Cave, the two groups of people began to glare at each other and mock each other. Someone from the Moling Su Clan shouted, "The Gusu Lan Clan has so many disciples. Can they all set up their own sect? That's too arrogant!"

Someone from the Gusu Lan Sect immediately responded: "Who is so arrogant? I don't know whose exorcist song is so full of mistakes and he doesn't even realize it!"

As soon as these words came out, Wei WuXian suddenly understood clearly!

He said, "It's not food, nor is it Feng Shui!"

Everyone was stunned, and Wei WuXian said, "You all forgot that after we got to the mountain, there was one more thing you all did."

Lan Sizhui asked, “What’s the matter?”

Wei WuXian said, “Kill the zombies.”

Ouyang Zizhen blurted out: "Ah, could it be that like in Yicheng, there is something like corpse poison powder in the bodies of the walking corpses?! Father, when you killed those walking corpses, did they spray out strange colored powder from their bodies?"

Sect Master Ouyang said: "No powder, no!"

Ouyang Zizhen was unwilling to give up and asked, "Then...what about the liquid?"

Jiang Cheng said coldly: "Alright. If there was any strange powder or liquid sprayed out after killing the zombie, we would not have failed to notice the abnormality."

Ouyang Zizhen, who thought he had figured out the secret, blushed and scratched his head. His father quickly pulled his overly excited son down to sit down. Wei Wuxian said, "It is indeed related to killing the zombies. However, the problem is not with the zombies, but with the people who killed them."

He turned to Lan Qiren and said, "Senior Lan, I would like to ask you a question."

Lan Qiren glanced at Lan Wangji and said indifferently, "If you have any questions, why don't you ask him instead of asking me?"

Although Lan Qiren was pedantic, he was not a reckless man. He had sensed something was wrong, so he listened patiently for so long, but his expression was still very ugly. However, Wei Wuxian had been given the cold shoulder by him since he was a child, and he had been given the cold shoulder by countless others since then, so he no longer cared about it. Thinking that this was his uncle who had raised Lan Wangji, he felt that there was nothing to be angry about. He stroked his chin and smiled, "I'm just afraid of asking him too many questions in front of you. Are you angry? But since you asked me to ask him, then I will ask. Lan Zhan?"

Lan Wangji said, “Yeah.”

Wei WuXian said: “The Moling Su Clan is a family that split off from the Gusu Lan Clan, right?”

Lan Wangji said, “Yeah.”

Wei WuXian said: “Although they have separated, the unique skills of the Moling Su Clan were still ‘borrowed’ from the Gusu Lan Clan, right?”

Lan Wangji said, “Yes.”

Wei WuXian said, “One of the secret skills of the Gusu Lan Clan is the Barrier-Breaking Sound, which has the effect of exorcising evil spirits and demons. Among them, the seven-stringed ancient zither is the most profound and advanced, so the number of people who practice zithers is the largest. The Moling Su Clan followed suit, and their family also has the most zither practitioners, right?”

Lan Wangji said, “Not bad.”

Wei WuXian said, “Although the head of the Moling Su Clan left the Gusu Lan Clan with his skills and established his own clan, his own qin skills were not that great, and the students he taught often made many mistakes, right?”

Lan Wangji said frankly, “Yes.”

Wei Wuxian and Lan Wangji chatted with each other, asking and answering as if no one was around. More and more people gradually realized that they were not simply mocking Su She, but were trying to unravel the mystery, so they listened more and more carefully. Then, Wei Wuxian slowly said, "... In other words, even if there was a melody that was not right in the war music played by the Moling Su clan when they went to the mass grave to kill the zombies, the Gusu Lan clan would not be surprised and would only think that it was their poor skills that made a mistake and that they had misremembered the music score, but they would not pay attention to whether it was an accidental mistake or a deliberate mistake. Is that right?"

Hearing this last question, Su She's pupils shrank, and the veins on his hand that was pressing on the hilt of the sword suddenly bulged, and the sword tip quietly came out of the sheath half an inch. Lan Wangji also raised his eyes at the same time, and he and Wei Wuxian saw the faint understanding in each other's eyes.

He said word by word: "That's right."

Su She drew his sword quickly. Wei Wuxian pushed the sword away with two fingers and smiled, “What are you doing? Don’t forget, you have lost all your spiritual power now. Is it useful to threaten me like this?”

Su She raised his sword, not knowing whether to stab or retract it. He gritted his teeth and said, "You keep targeting me. What on earth are you trying to insinuate?"

Wei WuXian said, “Did I say it too implicitly, so you think I’m making insinuations? Then let me make it clearer. Everyone here lost their spiritual power because they all did the same thing. What was it? Killing the zombies. When they were killing the zombies, this Su Sect Master of the Moling Su Clan came with you. He pretended to be playing the zither to exorcise the demons, but in fact he had secretly tampered with part of the battle music and turned it into another melody that would cause people to temporarily lose their spiritual power. You were fighting bloody battles, and he was fighting with you on the surface, but secretly doing something shady…”

Su She said: "You are slandering me!"

Wei WuXian asked, “There are many Gusu Lan clan zither practitioners here, right? When you were going up the mountain just now, was there something wrong with the war song played by the Moling Su clan?”

Regarding this, the Gusu Lan clan's zither practitioners were the most qualified to speak out, and they immediately said in unison: "That's right!"

Wei WuXian continued, “Sect Master Su knew that many people in the Gusu Lan Clan were full of disdain for you and the Moling Su Clan, so you took advantage of this disdain. Although evil music can harm people, it also requires the spiritual power of the performer. You alone, of course, cannot play a powerful music that can make nearly a thousand people lose their spiritual power, so you brought all the zither practitioners of the Moling Su Clan and asked them to play with you! Among all the families present, only the Gusu Lan Clan could hear something wrong, but they didn’t bother to pay attention to you. Even if they noticed that you played the wrong war song, they would just think that you were not good enough and taught your students the wrong thing!”

Nie Huaisang was dumbfounded and said, "Is there really such a weird song in the world that can make people lose their spiritual power after listening to it?!"

Wei WuXian said, “Why not? The sound of the zither can repel demons, so why can’t it summon evil? There is a collection of secret songs from Japan called ‘Luan Po Chao’, which contains all the evil songs circulated in Japan, even secret songs that can kill people, so why is it impossible for it to make people temporarily lose their spiritual power? Senior Lan Qiren is right here. Ask him if there is this book in the forbidden library of the Gusu Lan Clan’s library?”

After calming down, Su She sneered, "Even if there is such a piece of music, I couldn't enter the forbidden library when I was learning at Gusu Lan's Clan, so I had no chance to see it. Later, I never set foot in the Cloud Recesses, and I had never heard of this book! But you are so familiar with this "Chaos Soul Tranquility" and you are very close to Han Guangjun, aren't you more likely to come into contact with this book than me?"

Wei WuXian smiled and said, “Who said you must be able to enter the forbidden study room? Isn’t it enough that your master can enter and leave freely? He must have taught you how to tamper with the music score.”

The powerful person who can come and go freely in the Cloud Recesses, Su She’s master, does not need to be stated explicitly, everyone knows that it is only Lian Fangzun!

Wei WuXian said, “You had a great idea. You arrested the disciples of various families and led so many people to the mass grave. He used the excuse of being injured to avoid suspicion and cooperated with you. One of you used evil music to destroy people’s spiritual power, and the other used the Yin Tiger Talisman to control the corpses to surround the mountain. In the end, thousands of people were wiped out in my territory. If you say it wasn’t me, no one would believe it, right? You are not afraid of running into me. Anyway, Wei WuXian is notorious. New and old hatreds are coming out at the same time. The crowd is so excited that no one will listen to my explanation. Maybe I will be driven to kill again and you will save yourself from doing it.”

Su She said, "It's ridiculous. Lian Fang Zun is already the leader of hundreds of families, and he doesn't need to fight for power. What benefit does he get from letting so many people come to die? It would be fine if he slandered me, but he actually slandered Lian Fang Zun!"

Wei WuXian said, “Since you swear that I am slandering you, do you dare to play the battle song that the Moling Su clan used to exorcise corpses and demons on their way up the mountain in front of everyone?”

All the zither practitioners of Gusu Lan Clan are here. If Su She plays differently now than before, he will be caught immediately!

The people in the Demon-Suppressing Cave quietly moved further and further away from the Moling Su Clan, unknowingly clearing a large area of ​​space and isolating them in the middle. Wei Wuxian took the opportunity to say, "Don't want to? Okay, it doesn't matter. Why don't you take a look at what this is?"

He took out two yellowed papers from his arms and shook them, only vaguely revealing the music scores written on them: "Do you think we really returned empty-handed in Jinlin Terrace before? In the secret room behind the bronze mirror in Fangfei Palace, we have found the two torn pages from the Chaos Soul Manuscript that Jin Guangyao hid. Just show them to Senior Lan Qiren and let him check if there is the melody you played just now, and the truth will be revealed immediately!"

Su She sneered, "You are lying. How do I know if this is a random music score you wrote to slander me?"

Wei WuXian said, “Do I have to carry two sheets of music scores with me all day long so that I can take them out at any time? Senior Lan QiRen will know if I’m lying or not at a glance.”

Su She originally suspected that there was a trick, but when he saw Wei Wuxian with a sly smile on his face and a firm tone, Lan Qiren took it and frowned. His heart tightened and he said, "Senior Lan, be careful of tricks!" Then he reached out to grab the two pieces of paper.

At this moment, Bichen's ice-blue sword light attacked him. Su She drew his sword from his waist to block, but after blocking it, he suddenly realized: he was fooled!

Su She's sword, named "Nanping", clashed with Bichen at this moment, and the sword light flowed - it was clear that it was full of spiritual power!