They didn't sneak in to be experimental subjects. When the truck stopped at the entrance of the laboratory basement and several people in protective clothing came to carry people, they jumped up in an instant and subdued them all without making any sound.

Their identities were immediately changed. Song Yun and the others became laboratory workers wearing protective clothing, and the original workers became the experimental subjects that had just arrived today.

In order to prevent the people inside from discovering that there was something wrong with the experimental subjects too early, Song Yun also thoughtfully disguised them all, making them look more like Chinese people who had suffered hardships.

One by one, the test subjects who were unable to speak and had weak limbs were carried out of the car. When the operators came out, they brought out a cart. One cart could lay three test subjects flat, and there were three carts in a row.

It doesn’t matter, it’s the same whether you push it or not.

I guess they had worked like this before. When Song Yun and the others pulled a cart full of experimental subjects into the basement, the staff they met didn't even look at them. It was obvious that they were already accustomed to such scenes.

After entering the basement, Song Yun slowed down her pace and looked around. She found an elevator entrance. Next to the elevator entrance were several carts, exactly the same as the one she was pulling.

The rest of the basement looked like a large warehouse, filled with various materials, most of which were covered with dust covers. Workers were walking through it with baskets, seemingly looking for something.

Song Yun slowly pulled the cart towards the elevator.

The people on the cart made humming noises, trying to attract the attention of their fellow citizens.

Especially those compatriots wearing protective clothing, no one even looked at them.

The elevator was not small, but it could only accommodate one cart at a time. Song Yun naturally took the lead and she took Zhao Changjiang in.

She winked at Xu Jinbu and the others, indicating that they should come over and watch her work, and not wait for her to go up, as they would stand there not knowing what to do.

Xu Jinbu, Kong Dapeng, Jin Guodong, and Chen Changan all walked over, pretending to help push the cart, their eyes fixed on Song Yun's movements.

After Song Yun entered the elevator, she looked at the buttons on one side. There was only one button, which led directly to the third floor. It seemed that if she wanted to go to other floors, she would have to take another elevator or there was another special passage.

Song Yun reached out and pressed the button for the third floor. After a beep, the elevator door slowly closed.

Xu Jinbu and others understood and immediately retreated.

The elevator went up to the third floor, the elevator door opened, and Song Yun and Zhao Changjiang walked out of the elevator pushing a cart full of experimental subjects.

Outside the elevator is the laboratory corridor, which is snow-white. I don’t know what materials are used to decorate it. In this era, for the very backward Chinese, this kind of decoration style is very advanced, even with a sense of technology.

Song Yun deliberately slowed down her movements, looked around, and waited for Xu Jinru to improve.

The corridor was very long, and there were at least fifteen or sixteen rooms. All the doors were closed, and there was a sign hanging on each door. The sign not only had the room number but also the category name, such as sampling room and culture room. The sign was written in both R and Y.

Just as Song Yun had originally guessed, a laboratory of this level could not be built by only the R people.

Snakes and rats belong together.

By the time Jin Guodong and Chen Changan came out of the elevator, Song Yun had already found the target room, Room 305, the experimental subject storage room.