The air in the sack was thin, and the cloth ball blocking the mouth made breathing an extremely luxurious thing.

Shen Yijin felt a little regretful. She shouldn't have let the deliveryman catch them so early. The deliveryman only delivered goods once a day, which meant that they had to maintain their current state for a whole day.

Shen Yijin had spiritual power and merits, so he was not in such pain. However, Nan Mingcheng, who was put into the sack like Shen Yijin, was not in a good condition at the moment.

After recovering some of his memories, Nan Mingcheng also began to practice, but there was not much spiritual energy in this world, and it was extremely difficult for him to practice. He was still in the second level of the Qi Refining Stage, and his physical fitness was only slightly better than that of ordinary people.

After staying in the sack for too long, his brain was deprived of oxygen. The delivery truck was very simple, and his delicate body, which had been in the office all year round, was bumpy and his stomach was churning, and he wanted to vomit, but his mouth was blocked and he couldn't vomit.

Zhanxie Sword tried to come out several times to help him cut the sack, but Nan Mingcheng was afraid of being exposed, so he forced himself to be brave and gave orders to Zhanxie Sword, telling it not to act rashly.

After enduring this for an unknown amount of time, Nan Mingcheng finally couldn't bear it anymore and passed out.

When he woke up again, Nan Mingcheng found himself placed in a small space.

The ropes that bound his hands and feet had been taken away. He tried to explore the boundaries of the space he was in, but just as he moved a little, he was blocked.

Nan Mingcheng suddenly realized that this dark space was so small that the people inside could not move at all. No wonder he was so confident in untying the ropes on them.

Fortunately, children grow fast nowadays, and elementary school students can all be 1.8 meters tall, so the space for experimental subjects is relatively large. Otherwise, he had been unconscious before, and the people in the laboratory would not be able to squeeze him into this space, and his identity would be exposed.

It would be fine if you were exposed while awake, but if you are unconscious you will be at the mercy of others.

"You're finally awake." Nan Mingcheng was wondering where the deliveryman had taken him when he heard Shen Yijin's voice with a hint of joy.

Shen Yijin has been waiting for Nan Mingcheng to wake up.

For some reason, the deliveryman made an extra delivery that night, but it was a good thing for her and Nan Mingcheng.

If he really stayed in the sack for a whole day, Nan Mingcheng didn’t know what would become of him.

After successfully entering the laboratory, Shen Yijin has been in contact with Nan Mingcheng.

The newly arrived experimental subjects were sent to different rooms according to gender. She and Nan Mingcheng were not in the same room, and she could not reach Nan Mingcheng through voice transmission. Although she calculated that Nan Mingcheng was not in danger of life, she could not see the specific situation, so Shen Yijin could not help but worry about Nan Mingcheng.

She waited for nearly two hours before Nan Mingcheng finally regained consciousness.

Chen Yijin spoke rapidly, explaining her discoveries over the past two hours to Nan Mingcheng: "The room we're in now is called the 'Beehive.' Before being used for experiments, all test subjects are confined to small cells. Researchers come in every day to inject nutrients into the test subjects. Every three hours, a gas that can cause coma is released from the pipes in the walls of the beehive. The test subjects in the beehive are basically in a constant coma."

At this point, Shen Yijin interjected with emotion: "It's almost time to release the gas. I'm really worried that you won't wake up."

From the beginning, she didn't agree to Nan Mingcheng following her into the laboratory. If something really happened to Nan Mingcheng in the laboratory, she would never forgive herself in her life.

"I'm not that fragile." Nan Mingcheng said this without feeling guilty at all, as if the person who fainted in the sack before entering the laboratory was not him.

Chen Yijin didn't bother arguing with Nan Mingcheng. She ignored him and continued with the previous topic: "There are no less than twenty surveillance cameras in each hive. I've checked with my spiritual sense. Now that the experimenters have gone home, there are only the test subjects in the lab. I'll use Yun Rong's power to temporarily cover all the surveillance cameras in the hive. You can use that time to find a way out."

After being wrapped in the power of the fox fairy, the surveillance camera can only record the images that the operator wants. Even if someone sits in the monitoring room and stares at the surveillance screen, they will not be able to find any abnormalities.

Although the hive periodically releases a gas that can cause people to become unconscious, each cell is locked just in case.

Shen Yijin could use her spiritual power to open the grid, but she suddenly remembered Nan Mingcheng's current situation.

"You should have a way to get out, right?" Chen Yijin asked Nan Mingcheng hesitantly. She was afraid that Nan Mingcheng's self-esteem would be hurt by this.

Nan Mingcheng didn't think too much about it. He thought carefully based on his current abilities before answering Shen Yijin: "Okay, I'll let the Evil-Slaying Sword shrink and go out to help me unlock it."

Shen Yijin was speechless when she heard this answer.

Using a sword as a lock-picking tool, I'm afraid no one except Nan Mingcheng would have thought of this idea.

Shen Yijin complained madly in her heart, but she did not forget the important matter.

She mobilized the power of the surrounding fox spirits to wrap all the cameras in the hive, and then was the first to emerge from the grid.

Shen Yijin's grid was located at a relatively high position. She roughly estimated the height, which was about two meters from the ground to this position.

If this person was really a child, even if the grid was opened, he would not dare to jump down when he saw such a high distance.

Shen Yijin jumped down easily, like a cat, without making much noise.

Nan Mingcheng was almost in sync with her.

"Don't move, I'll come find you." After hearing Nan Mingcheng say that he had come out of the grid, Shen Yijin slowly opened the door of his room, blocked the surveillance in the corridor, and hurried to meet Nan Mingcheng.

Although the surveillance in the corridor is interfered with by the power of the fox fairy and no abnormal errors will occur, the corridor is not safe.

The laboratory spent a lot of money to purchase many robots. These robots move back and forth in the corridors for patrol. If they find any problems, they will immediately sound the alarm and block all the doors and windows of the laboratory to prevent anyone who sneaks into the laboratory from leaving.

After all, Shen Yijin is not Hu Yunrong herself, and the fox fairy power she can mobilize is limited. If she interferes with the surveillance in the corridor, she will no longer be able to block the robots in the corridor.

The laboratory was filled with the Meteorite Sect's formations. Without the blessing of the fox fairy's power, Shen Yijin would not easily use his spiritual power to prevent the Meteorite Sect elders from discovering anything unusual in the laboratory.

She could only do what an ordinary person did: find the robot's blind spot, quietly follow behind the robot, and go to another hive.

The two beehives were at the two ends of the corridor. Shen Yijin used his spiritual sense to investigate and found that there were five robots in the corridor on this floor.

She took a deep breath, and after a robot passed the entrance of her hive, she stuck close behind it and walked forward.

After walking a few steps, Shen Yijin found something wrong. The time when these robots turned around and walked back was not fixed!

As soon as she realized this, the robot in front of her turned around!