This system is outrageous.

Changfeng jumped onto the roof alone and quickly looked around, but didn't see any suspicious people.

"We didn't find anyone. Now we can only confirm that this yellow powder has hallucinogenic effects. But it's really amazing that you, as a host, can also be infected. No wonder he has been watching here silently for a year. There must be something there."

"Do those NPCs also have this kind of powder on them?" Ye Fei carefully recalled the scenes along the way, and there seemed to be nothing strange.

"Basically, they all do. It should be the hallucinogenic effect produced by the powder when inhaled into the body. Because of our special physical constitution, it has no effect on us."

Ye Fei thought for a few seconds. "Will this powder have any effect on other people who practice magic in this small world?"

Eleven didn't need Changfeng to give any instructions, he just jumped onto the roof to find someone to test it.

"If this powder is only effective for people who don't know how to cast spells, then these NPCs might just be dragged into doing free labor. But if it also works for people who practice spells, that would be terrifying."

Ye Fei’s question was soon answered, and Eleven came back with a serious look on his face.

"I collected some powder from some NPCs and gave it to some mages in the palace for testing. I found that this powder can also cause hallucinations even on some mages with low mana."

"Could this also be done by that medical officer? That's too amazing. He's simply a hidden boss."

In order to verify this problem, the four found a currently vacant house.

"I'll go find the medical officer and collect all the medicines he has. Eleven, you stay in the city and see what they are planning to do. You two can hide here and keep an eye on the system for any plot updates."

Ling Rui didn't seem to be worried at all, and even leisurely took out a small mirror.

Ye Fei had never seen him carry a mirror with him, so she curiously leaned over to look. However, what appeared in the mirror was not Ling Rui's face, but the bustling street not far away.

"What kind of prop is this? It looks so powerful."

Ling Rui handed the mirror to Ye Fei. "This is called Xuan Guang Shu, a simple Taoist technique."

Ye Fei looked at the clear picture in the mirror, but it still felt unreal. She couldn't help but reach out and poke the mirror. Ripples appeared on the mirror, and the picture became clear after being confused.

"Is it fun? You should be able to learn this. I can teach you when I have time."

Ye Fei nodded happily. "Great, with this I can see far away clearly."

Ling Rui thought for a moment and smiled. "With this, you can see very far, even farther than Eleven can see."

Hearing that he could see farther than Eleven, Ye Fei immediately smiled.

"Then I will definitely study hard."

Eleven, who was not far away, heard the entire conversation word for word and could only sigh helplessly.

Ten went straight to the palace, but found nothing unusual after a round. Finally, Eleven had to find the underground secret passage.

I saw that in a room in the secret passage, there were a lot of people gathered and were performing a collective magic circle. After Eleven took a picture of their formation diagram, he made a few casual changes on it, and they immediately fell into chaos.

Eleven took advantage of the chaos to sprinkle powder in the air and carefully observed the changes of the NPCs.

On the other side, Changfeng couldn't help but sigh as he looked at the medical officer's secret room. This entire secret room was filled with thousands of different poisons and antidotes.

Changfeng even suspected that the medical officer was the real boss behind the scenes, and the male protagonist was just a jumping clown.

Changfeng carefully collected various medicines and meticulously copied the medical officer's collection of books for future research. Only then did he return contentedly to reunite with the three people.

Seeing Changfeng coming back, the four of them began to integrate the information.

"Many people underground are activating the formation together, and with that yellow powder, they can control a large number of NPCs indiscriminately."

"But I found that there is almost no effect when there is no formation but only powder."

Eleven took out his cell phone, which clearly captured the formation they were using.

"This kind of thing shouldn't exist in this small world. This is a bit beyond the scope."

Ling Rui sighed as he looked at the complicated formation in the photo.

"My side is even more outrageous. You haven't seen the whole secret room filled with thousands of poisons and antidotes, and even several of his notebooks. It took me a lot of effort to organize them."

The three people looked at him curiously, and Changfeng suddenly felt embarrassed.

"I was so excited that I forgot to take pictures, but I brought some things back with me and backed up my notes. I'll analyze them slowly when I get back."

Looking at the regretful expressions of the three people, Changfeng tried to change the subject.

"Based on what we have discovered now, he may not have discovered many secrets after observing here for a year. After all, these things did not happen at the same time."

"So maybe the crows don't know how special this little world is, so it didn't attract their attention."

Eleven smiled slightly, and a clever idea was brewing.

Changfeng seemed to see what Eleven was thinking and immediately spoke up to stop him.

"Don't even think about coming here. It's too chaotic here and it's easy for them to hijack you. It would be embarrassing if that happened."

He would lose all face if the crows knew the secret of this place and occupied it on a large scale.

Eleven, who had recovered from his excitement, could not help but curl his lips when he thought about Changfeng's embarrassment, which might lead to him being beaten and forced to lie in bed for a year. He immediately gave up this plan that had not yet been formed.

"Why don't we set this small world as top secret after we return? It cannot be accessed casually and it won't appear in the mission list."

Ling Rui's proposal was approved by Chang Feng. Ye Fei was very confused about the new words and turned to look at Eleven.

"There are small worlds in the system that are classified as confidential. Can't we access them casually?"

Eleven finally got a chance and rolled his eyes. "Of course, it's highly confidential and multi-layered, and only a few people with the highest authority can fully access the information. However, most people don't know that there is such a category in the system. I know about it because I often enter and exit the system, and I can't crack many files in the confidential small world."

Changfeng squinted his eyes at Eleven. "It seems that you have actually tried to crack the confidential documents."

Eleven blinked innocently. "That's natural. Who wouldn't be curious when seeing something classified as confidential? And it's a confidential little world that was excluded from the mission list. There must be something unspeakable in it."

Changfeng raised an eyebrow. "How much do you know?"

Eleven spread his hands. "I don't know much. I just know that confidential files are divided into three levels. The first level is ordinary encrypted files. With my ability, I can crack all the file information in three to five days. The third level is advanced encrypted files. With my current technology, it is basically impossible to crack them completely, but it is not a problem to crack sporadic file fragments."

"There's more." The corner of Changfeng's mouth twitched slightly, but Eleven, who was still showing off, didn't notice it.

"There is also top-level secret information. You must have permission from the system to view it, and you may not be able to view all the information. Although there are not many top-secret worlds in the system, the more this happens, the more curious I am."

Changfeng's mouth twitched and he clenched his fists. "You know a lot, kid. Fortunately, you behaved well. Otherwise, it would be very difficult to deal with you alone."

Eleven immediately put on an innocent look.

"I am so honest. There are not many administrators like me who work hard and do their duty."

Changfeng turned his head away in disgust.

"Since this place is temporarily stable, let's go back first. It will probably take a while to analyze the things we brought back this time."

"Eleven, when you go back, find out about that person. The more detailed the better. It would be best if you could find out all his history since he entered the system."

Eleven curled his lips. "Just now you said I was dishonest, now you want me to check his background."

Ling Rui walked over and patted Eleven, then whispered something in his ear.

"Don't bother him. He's under more pressure than you. He's the one who's been covering for you when you hacked into the system."

Eleven immediately nodded obediently and made a shut-up gesture with his hand.

Changfeng opened the door and the four of them returned to the system space. Ye Fei went to purify obediently, and Ling Rui sat aside and sighed.

"Under the current situation, I can't find the right person to help for a while."

Changfeng was busy sorting the things he brought back for analysis. Eleven looked at the three of them and chose to go into the room to begin investigating the host named Daochun.