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"None of them. It does look a bit like a mutant, but it's different."

Yu Qingchuan shook his head, his face still serious.

"This drug can temporarily restore the ability of a corpse to move, and then self-destruct."

"Self-destruction?" Cheng Sinian opened his eyes slightly.

"That's right." Yu Qingchuan nodded, "This drug takes effect very quickly. It takes effect within a few minutes or even tens of seconds after the drug enters the human body."

"It causes the body to reactivate and then suddenly explode when it reaches a certain location."

"And the power of self-destruction is no different from that of normal aliens."

"Then if you say that, aren't they attacking indiscriminately?" Cheng Sinian frowned even more tightly.

"No." Yu Qingchuan shook his head again, "A corpse that has been infected with this kind of medicine will also avoid people carrying special powder."

Hearing this, Qiao Yu touched her chin, "Does this mean that this drug is likely to have the same origin as the drugs we encountered before?"

"Yes." Yu Qingchuan nodded, "Professor Kang and Professor Shen and I all guessed this way."

"So the top priority is to take samples."

"But I am telling you this to remind you." Yu Qingchuan pursed his lips, "Do you still remember the large morgue we saw on the fifth floor of the main building?"

"Are you saying that all the corpses parked there have been treated with this drug?"

"No. As I just said, this drug works very quickly."

"So I guess it's very possible that that floor is an 'ammunition depot'."

When Qiao Yu heard this, a look of sudden realization suddenly appeared on her face.

"I think I know why they put the sample library underground."

Cheng Sinian raised his eyebrows, "You mean... they are trying to prevent the corpse from blowing up?"

Qiao Yu nodded, "In a sense, it is to prevent the loss of samples in the process of eliminating the intruders."

"I guess the morgue on the fifth floor may be the last line of defense in the base research institute."

"Once something unexpected happens to the institute, they will immediately release drugs to make the corpses move."

"Once they find the intruders, they'll blow themselves up."

"As for why the floor where the corpses are placed is on the fifth floor, and why the sample library is underground..."

"I guess they should have reasonably calculated the floor height."

"In this way, even if all the corpses on the fifth floor explode, the underground research room will still be intact."

Cheng Sinian nodded, "That makes sense."

Qiao Yu lowered her eyes and thought for a while, "It's okay, you don't need to worry about this matter."

"A-Zhan and I will be the ones going to the main building then. Don't worry, we will find a way to solve this problem."

Yu Qingchuan breathed a sigh of relief when he saw Qiao Yu's calm face, not like she was worried about this problem, "As long as you can find a way."

"By the way, you just said that you were discussing an action plan, so what is our action mission?" Yu Qingchuan asked.

Qiao Yu smiled softly and said: "Not much. I just need you to attack the settlement of dependents."

"A place where dependents live?" Yu Qingchuan was a little confused, "Why attack them so well?"

Upon hearing this, Qiao Yu handed Yu Qingchuan her hand-drawn flat map of the dependent settlement, and then briefly described the scene they saw in the dependent settlement to the map.

Yu Qingchuan's face became darker and darker as he listened to Qiao Yu's description.

As a researcher, it is outrageous that human life is so insignificant!

After Qiao Yu finished speaking, she couldn't help but sigh when she saw that Yu Qingchuan didn't reply for a long time.

"Qingchuan, I can understand how you feel now, but no matter what, the focus of our operation this time is sampling. Do you understand?"

Yu Qingchuan didn't answer at first, but after a long silence, he nodded and said, "I understand."

"Ah."

Qiao Yu then told Yu Qingchuan and Huayue the detailed combat plan and combat time, and asked them to find Yan Zijin when the time came.

Then several people began to prepare for the official actions in the evening.

--

When the time reached three o'clock in the afternoon, Jiang Zhan told Qiao Yu that Cheng Sinian, Luo Zhenzhen and Xiang Heng had already set off.

The team of Cheng Sinian, Hua Yue and Yan Zijin followed closely behind, and they set off not long after.

Qiao Yu stood by the window, looking dimly into the distance.

The sky is getting darker and the fog is slowly starting to cover.

Qiao Yu didn't know how long she had been waiting. She only knew that when she was dazed, she suddenly heard a loud "bang".

Then a burst of fire was seen in the north of the base.

Qiao Yu felt slightly relieved and looked at Jiang Zhan, "It's begun."

The situation was as Qiao Yu expected, and the base immediately dispatched most of its troops.

Qiao Yu stood by the window and watched the legions gathered downstairs leave the institute as quickly as possible and accelerate towards the "reservoir" to the north.

Qiao Yu lowered her head and glanced at the time. It was almost five o'clock.

Qiao Yu and Jiang Zhan waited for about half an hour, and then heard the huge explosion again.

Qiao Yu took a deep breath and said, "Azhan, let's get ready to leave."

Jiang Zhan nodded, "Okay."

Under the cover of the spiritual barrier, Qiao Yu and Jiang Zhan arrived at the door of the control room smoothly.

"There are only three people inside." Jiang Zhan whispered, "I'll find a way to control them first."

Qiao Yu nodded.

There were only three people left in the control room, which showed that their plan had really worked.

A few seconds later, Jiang Zhan whispered again: "Okay."

"There's no need to go in, their monitors have been destroyed by me. Let's go directly to the main building."

Qiao Yu nodded again.

Since they had already explored the road before, the two of them seemed to be very familiar with the route this time and went straight to the westernmost research room on the first floor.

One of the two underground laboratories that Jiang Zhan sensed is here.

Qiao Yu skillfully covered the lock on the door with ice inch by inch, and then squeezed it hard, and the lock broke into several pieces.

The two opened the door and walked into the house, and sure enough they found a secret door leading underground in a corner.

Qiao Yu and Jiang Zhan opened the secret door. It was dark inside, but the sounds of some animals or plants could be vaguely heard.

Qiao Yu took out two flashlights from the space, handed one to Jiang Zhan, and walked out immediately.

The stairs going down are slightly long, indicating that this laboratory is built deeper underground.

The further down you go, the clearer you hear it.

But Qiao Yu didn't expect that at the end of the stairs, there was a thick stone door.