You're constipated!"

Zhang Yuanqing flicked her forehead. Before Sun Miaomiao could retaliate, he pressed his earpiece and said, "I think I know what's going on."

The underground palace team perked up, but they didn't show it on their faces. They either pretended to drink coffee or pretended to admire the scenery, concentrating on listening to the answer from Yuanshi Tianzun.

"I suspect the armored man tampered with the stone door."

Zhang Yuanqing explained his guess, hiding his headache and only saying that he had a prop to activate his memories. *So that's how it is!* The underground palace team suddenly understood. Tianxia Guihuo felt a little relieved. What he feared most was that the armored man had monitoring methods that were imperceptible and incomprehensible. If that were the case, their side would be very passive. "Based on Xia Chaoxue's death, we can deduce that the armored man sneaked into Jiaoren Lake to check for traces in the latter half of the night. During the day, he needs to attend classes, and there are many people around. The same is true at night. Only the latter half of the night, when everyone is asleep, is suitable for sneaking into the lake. If it were me, I would also choose the latter half of the night when I wouldn't be discovered," Tianxia Guihuo said, lowering his head and drinking coffee. Yuanshi entered the underground palace twice, once in the morning and once in the evening, perfectly avoiding detection. Sun Miaomiao pretended to stare at the ceiling absentmindedly, "In this way, the possibility of the armored man being a Star Official is very low. Star Voyager and Yuan Ting are not the armored men." Star Officials have spirit servants and Yin corpses and don't need to sneak into the lake themselves. They can monitor the situation of the stone door at any time. Yuanshi Tianzun is an example. Xiahou Aotian said, "What about the remaining three questions? Do you have any ideas? If we solve these three questions, we'll understand the whole story. I still feel something is wrong..." He thought for a while and spoke mentally, "Imagine, if I were the armored man, I would choose to investigate secretly, lock onto the target, and then take action, rather than killing someone and making it known to everyone. That's a lose-lose situation." Just as Zhang Yuanqing was about to speak, Hongji Ge slammed the table and roared, "Enough! Your depression is unbearable!"

Library, meeting room. The old dean, with his gray hair, sat at the end of the conference table with a stack of thin papers in front of him. He looked around at the teachers at the table and said in a deep voice, "There are 11 people in the entire academy who can vouch for each other in the latter half of the night. Nine of them were eating barbecue skewers and drinking porridge in the cafeteria. The organizer was Hongji Ge. They ate and drank until 1:30 AM. The other two are Yuanshi Tianzun and Zhao Chenghuang. The others were all in their dorm rooms and rested early." Huo Mo Luo Lesheng said in a muffled voice, "Can these people be ruled out as suspects?" The old dean shook his head, "No, these people actually have something to investigate. It's those who were alone in their rooms that are impossible to investigate because no one can prove whether they're lying or not." After a pause, he raised his teacup and took a sip. "Next, we need to verify two things. The first thing is, according to the students' records in the cafeteria, Zhu Mingxu left halfway and only returned after more than ten minutes. The second thing is, Yuanshi Tianzun and Zhao Chenghuang stayed together all night? According to my usual observations, Yuanshi Tianzun has never been absent when Hongji Ge treats. Xingkong, take the lie detector and ask them."

Xingkong Tanbuzhe nodded and left the meeting room. The old dean looked at the remaining teachers and said, "Next, let's think about the armored man's motive for killing."

Everyone was startled by Hongji Ge and looked at him blankly, wondering what the uncouth fire demon was doing. Hongji Ge cursed, "I can't stand it anymore. You haven't said a word since you entered the coffee shop. Isn't it just one student who died? What's there to be depressed about? We've only known each other for a few days. Of course, I'm also very unhappy that someone died, but life has to go on, doesn't it? I propose that we go to the cafeteria for lunch and drink a bowl of fresh and delicious congee. We'll feel better after drinking it." *He thought we were sad?* Everyone stared blankly at Hongji Ge. "Why are you looking at me like that? Am I wrong?" Hongji Ge glared. "Ah, yes, yes, you're right, you're right." Everyone nodded in unison. "I admire Hongji Ge's simplicity..." Zhang Yuanqing said with a smile, "We're just wondering who the murderer is. After all, we still have to stay here for three days. If we find the murderer as soon as possible, everyone will feel at ease." "That's true," Hongji Ge nodded. "Then have you figured out who the murderer is?" "Anyway, it's not you," Sun Miaomiao snorted twice. "Little girl, I think you want to fight. I'm a staunch supporter of gender equality. I never hesitate to hit women, even if you're ambiguous with Yuanshi Tianzun." Hongji Ge understood her sarcasm, just like the dean's sarcasm back then. "Who's ambiguous with Yuanshi Tianzun?" Sun Miaomiao reacted strongly.

At this moment, Yuanshi Tianzun's voice came through the earpiece, "Xiahou Aotian's doubts are related to why Xia Chaoxue died. The murderer may have another reason for killing Xia Chaoxue. But no matter what, now that the stone door has been opened, things have been known. We must find the murderer and kill him (her) so that he can't reveal this matter." Tianxia Guihuo narrowed his eyes, his murderous intent hidden, "We must find him and kill him before the academy teachers find him." Zhao Chenghuang and Xiahou Aotian also had firm killing intent in their eyes. They would do anything to protect this wealth.

"That's right, but don't be too nervous. The armored man won't easily reveal this matter because he's also here for the treasure. Also..." Zhang Yuanqing's words were interrupted again, but this time it wasn't Hongji Ge, but Xingkong Tanbuzhe. This Star Official with ordinary features but an ethereal and noble temperament walked into the coffee shop. "Everyone looked over. I asked around and heard the students say you were in the coffee shop." Xingkong Tanbuzhe walked to the table, sat down leisurely, and looked at Yuanshi Tianzun and Zhao Chenghuang. "The dean asked me to ask you, what were you doing last night?"

It was fortunate that Xingkong Guancezhe wasn't a scout; otherwise, he would have been able to see the solemn expressions of the underground palace team in that instant. *Damn it, is this ever going to end? This lie detector is a disaster to keep!* Zhang Yuanqing's heart trembled. He looked at Zhao Chenghuang, whose expression became even colder. Tianxia Guihuo, Xiahou Aotian, and Sun Miaomiao silently looked over, their brains working furiously under their calm appearances. They avoided the lie detector in the morning thanks to Zhao Chenghuang's wit, which was a lucky coincidence. This time, they were directly confronted with it, asked one-on-one. If they did the same thing again, even a fool would see the problem... Could they use ambiguous words to solve it? For example, Zhao Chenghuang and I were doing something secret together? No, this kind of wording wouldn't fool anyone. They couldn't treat people like fools. If they asked what it was specifically, he wouldn't be able to answer. Zhang Yuanqing's thoughts were boiling, but he remained extremely calm on the surface. He glanced at the small brown horn placed on the table and said in a deep voice, "Teacher Xingkong, before I answer you, you need to answer me a question first."

Xingkong Tanbuzhe stared deeply, "Speak. Why does the dean care so much about what the students did last night?" "Since the lie detector can't detect the results, we can only try to understand the information as much as possible, and perhaps get clues," Xingkong Tanbuzhe said. "Then I think your question shouldn't be what you did last night, but some more precise questions, such as: what is our relationship with Xia Chaoxue? Did we have any good feelings for her? Did we have any private contact with her?" Zhang Yuanqing said with a smile, "Aren't these more targeted?"

While he was stalling for time, he entered Yin Yaojunzhu's body and activated White Face. Because of the sudden incident in the morning, he believed that there would definitely be similar encounters in the future. Therefore, he obtained Yin Yaojunzhu's consent, and for the next three days, he could freely enter and exit the Junzhu's body. "Good idea," Xingkong Tanbuzhe nodded, "Then you can answer all these questions." Zhang Yuanqing smiled, but there was no smile in his eyes. "Your attitude makes me very unhappy. I'm not a suspect. Watch your tone. If this wasn't the academy, I would have pinned you to the ground and beaten you up, even if you're Level Five." Xingkong Tanbuzhe said coldly, "Please hold the prop and answer my question."

*Yuanshi Tianzun is planning to use an emotional outburst as a reason to muddle through and refuse this lie detection? That won't work. These teachers were front-line workers before. They can see through this kind of inferior trick at a glance...* Tianxia Guihuo frowned deeply. The other members of the underground palace team also felt a sinking feeling in their hearts. At this moment, they saw Yuanshi Tianzun pick up the small brown horn and say lightly, "I gave Zhao Chenghuang a Spirit Talisman Manual." Immediately, he threw the small brown horn on the table with a sneer. "Teacher Xingkong, now it's your turn to answer my question."

Xingkong Guancezhe looked at the small horn that didn't react, frowned at first, and then suddenly understood. Zhao Chenghuang and Yuanshi Tianzun were trading last night. The content of the transaction was obvious. It was precisely the means of drawing talismans in the air that Yuanshi Tianzun displayed on Jixin Island that day. For a Star Official, that was indeed an irresistible temptation. He had been thinking about it for a long time. Xingkong Guancezhe recalled the events of that day and believed that Zhao Chenghuang seeking a transaction was a reasonable and logical thing. "So that's how it is. I understand. I will report back to the dean."

*Well done!* Under Zhao Chenghuang's stern expression was a surge of surprise. Yuanshi Tianzun's operation was simply a stroke of genius. He first showed extreme displeasure and anger, and then combined it with the exchange between the three of them on Jixin Island that day, perfectly resolving the situation. Xingkong Guancezhe wouldn't be suspicious because Yuanshi Tianzun did give him a Spirit Talisman Manual, and as someone who was present that day, he would be able to understand it himself with a little thought.

Tianxia Guihuo and the others looked blank, not understanding what magic Yuanshi Tianzun had used to gain Xingkong Guancezhe's trust so easily. "Teacher!" Zhang Yuanqing called out to Xingkong Guancezhe, who was getting up to leave, and asked, "What do you think of the murderer?"

Xingkong Guancezhe was silent for a few seconds and said in a low voice, "I suspect the murderer and the mysterious person who sneaked into Jiaoren Lake on the first night of school are the same person." Zhang Yuanqing raised his eyebrows, "What makes you say that?" "Because neither the lie detector nor the Insight Technique worked, and this kind of ability is very rare. It's impossible for everyone to have it," Xingkong Guancezhe said his reason. "Very rare, that is to say, it exists, right?" Zhang Yuanqing thought for a while and said, "Do you know what abilities can hide from lie detection and Insight Technique?" Xingkong Guancezhe showed a hesitant expression. Seeing this, Zhang Yuanqing turned to greet the waiter, "Pour a cappuccino for the teacher." Seeing Yuanshi Tianzun's posture, Xingkong Guancezhe helplessly sat down, looked at Zhao Chenghuang, then looked at Yuanshi Tianzun, and lowered his voice, "Didn't I say it on the island that day? Taiyin symbolizes secrecy." Zhang Yuanqing frowned, "But there are only so many Star Officials on the island, and Zhao Chenghuang is the only one who specializes in Taiyin." Zhao Chenghuang glanced at him and said lightly, "My Taiyin power is not yet complete and cannot shield the lie detector. Sun Miaomiao specializes in the stars, and Yuan Ting doesn't have enough merit and hasn't obtained the cultivation secret methods yet." "Then it's not Taiyin," Zhang Yuanqing shook his head. "You don't understand what I mean..." Xingkong Guancezhe hesitated again, "The great perfection of Taiyin power can not only conceal oneself, but also grant it to others. When I was a front-line worker, I was once responsible for arresting a female Fangshi who committed a crime. The Fangshi could divine, so the elders of the sect granted me the power of secrecy. In this way, actions related to me cannot be divined."

The underground palace team fell into deep thought. *The great perfection of Taiyin power can grant others the power of secrecy... The armored man killed Xia Chaoxue without hesitation for the things behind the stone door. This ruthless approach doesn't seem like a normal official Saint, because this will inevitably lead to a break with the government... But if he's not an official person, it's impossible to enter Qinfeng Academy. Relationship people like Hongji Ge are unique...* *Damn it, Dark Night Rose?!* A brainstorming session was set off in Zhang Yuanqing's mind.

In this instant, he suddenly solved a long-standing doubt—why are there always members of the Dark Night Rose who can escape the official annual physical examination? The leader of the Dark Night Rose is a Night Wanderer, and one with a very high status. He (she) grants the power of secrecy to important figures in the organization, and the physical examination will definitely not be able to detect it. Everything makes sense. A member of the Dark Night Rose has infiltrated this batch of students! No wonder he killed people without hesitation. The double agents of the Dark Night Rose are this kind of style. Members of the Dark Night Rose are lurking in official and Lingjing families, and many of them are in high positions. It is understandable that they know about the academy's hidden mission.

*Damn it, why is it so coincidental that they chose this year? I'm so unlucky...* *No, maybe it's not bad luck.* Star Officials can use star gazing to observe the direction of the world. If that leader covets the hidden mission, then it is very likely that he will observe the sky at night and sense that the time is ripe. So he ordered the double agent lurking in the officialdom to participate in this training. The armored man's reconnaissance, smearing of invisible materials, and nightly monitoring of the stone door can all be explained. "It's the Dark Night Rose again. This broken organization has a karmic relationship with me..." Zhang Yuanqing took a deep breath, looked at Xingkong Guancezhe, and said, "Teacher, we need to talk. I think I've guessed the murderer's hidden identity." His first reaction was to tell the dean about this and cooperate with the school to arrest the Dark Night Rose hidden in the academy.