At that moment, Fatty suddenly noticed that Jiang Cheng, who had turned around, was holding something resembling a spear.

Squinting, he saw it looked a lot like Su Yu's cane.

"Doctor, what's this..."

"When I came out, this thing was stuck in the body of Zhen Jianren's brother," Jiang Cheng said, raising the cane and gesturing at Zhen Jianren's body, trying to reconstruct the scene for Fatty.

"Look," he poked the corpse, then looked up at Fatty, signaling, "It was stuck right here."

Ignoring Jiang Cheng's inhumane actions, Fatty raised his eyebrows, thoughtfully, and said, "You mean... he wasn't killed by a ghost, but by Su Yu, who was guarding the door?"

"Su Yu used the end of his cane... to stab Zhen Jianren to death?"

Fatty's tone became strange.

Jiang Cheng touched his chin, then raised his cane and stabbed Fatty with lightning speed.

Fatty was completely unprepared and was solidly poked in the butt.

"Doctor!" Fatty clutched his behind. "Why did you poke me?"

Unexpectedly, Jiang Cheng acted as if nothing had happened, tilted his head, looked at him, and slowly said, "Does it hurt?"

"Um..." After a moment, Fatty rubbed his butt and honestly replied, "It's okay, not too painful."

At this point, he also noticed that the seemingly pointed end of the cane had been blunted from years of friction with the ground, so... it wasn't very lethal.

"Doctor," as if he had figured something out, Fatty exclaimed excitedly, "I understand what you mean, this is a deliberately staged fake scene, a blunt cane can't kill anyone!"

Jiang Cheng looked at him suspiciously, paused, and said, "You got this excited just to figure that out?"

"What else?" Fatty asked.

"If the murderer could use a blunt cane to kill someone, then the required strength and skill would be beyond the reach of ordinary people."

He pointed to the body on the ground. "Look, there's only one fatal wound on the body, in the back, a single fatal blow. I suspect the murderer was hiding behind the wall and then launched a sudden attack."

"The murderer doesn't seem like the dance teacher, Su Yu," Jiang Cheng shook his head. "It's more like a professional killer."

Fatty thought for a while, then looked up and said, "Doctor, now that you mention it, I remember seeing the people who were killed by Chen Yao in the mirror before."

"There were security guards, students, teachers, and... and our people, about a dozen of them," he recalled.

Jiang Cheng turned to look into the depths of the room, which had unknowingly fallen into darkness again. "Not counting Chen Yao, a total of 15 people," he said firmly, as if he had already verified it.

Clearly, apart from the nine people who died ten years ago, the rest were people from this mission.

Fatty seemed to understand what Jiang Cheng meant, and his face became slightly unnatural. "You mean, besides us, there's another teammate alive?"

They had already seen the corpses of the qipao woman, Long Tao, Luo Yi, and Zhen Jianren, so they were ruled out.

That leaves only Yu Wen, Zhou Taifu, and Zhang Yinyin, whose bodies have not been found.

"Doctor," Fatty suddenly said, "Zhou Taifu should be dead. I just saw him in the mirror. I could see it clearly because there was a flashlight at his feet."

In fact, when Jiang Cheng mentioned the words "professional killer," the first person Fatty thought of was the mysterious Yu Wen, who had the right kind of aura.

Although they hadn't seen Yu Wen's body, they had found a severed arm belonging to her in Block C.

Judging from the hideous scars on the severed arm, it was undoubtedly the work of a ghost, so Yu Wen was likely dead as well.

That leaves only Zhang Yinyin.

Neither alive nor dead.

"Doctor," Fatty hesitated for a moment and said, "Could it be that Zhang Yinyin wasn't killed, but is hiding?"

Jiang Cheng stared at the cane in his hand, lost in thought.

The mission has progressed to the point where time has completely lost its meaning here. Jiang Cheng once predicted that the sun would never rise again, and now it seems that his words have come true.

Fatty gazed at the dark night, and the fear in his heart grew stronger.

"What do we do next?" Fatty swallowed, lowered his voice, and asked, "In my opinion, there's definitely something wrong with the music room. We..."

"Go to the music room," Jiang Cheng said without hesitation.

Fatty followed behind him, realizing that he was having some trouble keeping up with Jiang Cheng's pace. "Aren't we going to take Su Yu with us?" He hurried to catch up and asked suspiciously, "He must be related to solving the mission."

"He's already in the music room," Jiang Cheng replied casually.

Hearing this, Fatty paused, then his eyes gradually cleared, and he explained to himself, "I understand, Doctor. Since Zhang Yinyin was able to find the cane and stab Zhen Jianren to death, she could naturally find Su Yu as well. And Su Yu, as an important clue, must have been taken away by her."

"The only place they can go now is the music room, because that's where Chen Yao hanged herself and also the location of the third rehearsal."

It was unclear whether he was annoyed by Fatty's rambling or something else, but Jiang Cheng stopped talking.

As they passed the courtyard, Fatty discovered that Su Yu, who had been tied to the chair, was indeed gone.

The rope had been cut, one end hanging on the chair, the other half loosely coiled on the ground.

Leaving the equipment center and walking towards the music room, Fatty's steps were much lighter.

The mission plot was now relatively clear: it began with lust and ended with lies.

And the ultimate result was the end of more than a dozen lives.

"Doctor," Fatty's voice came over, "There's one thing I don't understand. Why did Chen Yao kill so many people, but never laid a hand on Su Yu? He's the one who deserved to die the most!"

"Could it be that those talismans really worked?" His voice became increasingly suspicious.

Jiang Cheng slowly said, "It's the rules..."

This wasn't the first time Fatty had heard this word. Every time they encountered an unsolvable problem, Jiang Cheng would throw out this mysterious proposition.

It was practically an excuse.

"I don't understand..." Fatty said very frankly, "I only know that if it were me, I would kill Su Yu without hesitation, with all my might."

"There is no absolute dead end in a nightmare, the rules leave a chance for everyone," Jiang Cheng glanced at Fatty beside him, his tone becoming unfamiliar. "And by everyone, I don't just mean participants like us, but also the people in this world, even... ghosts."

Fatty suddenly raised his head and exclaimed, "Ghosts?"

"If we have to use the word 'mission' to describe it, then not only do we have missions, but Su Yu, as a key figure, and Chen Yao, who has become a ghost, both have missions of their own."

"Our missions are intertwined, full of countless connections, but one thing is consistent," Jiang Cheng suddenly stopped, looked up, and in front of him was a dark and huge building.

"We are all limited by the rules."