It must be going down, but with the equipment in everyone's hands, let alone seeing the final boss, it is estimated that it will be difficult to break through the last two layers of defense.

The atmosphere was a little frozen for a while. Xu Feng was trying to find a better way, but Song Huicheng on the other side had an idea and said, "Maybe there is another chance."

Xu Feng was startled for a moment and said, "If there is an opportunity, tell me quickly."

The traces here look like man-made destruction, plus the figure Xu Feng saw in the monitoring room before.

Xu Feng is not sure what kind of crisis is hidden here.

But since someone destroyed the strengthening potion here, it is very likely that what Song Huicheng could think of is gone.

However, the situation was already like this, and Xu Feng had no better way. He could only hope that Song Huicheng's suggestions would be slightly better.

Just listen to Song Huicheng say, "The research on zombie viruses is actually very fast, and the strengthening potions are also constantly iterated."

"There may be medicines ready for experiments in the laboratory on the next floor, but I can only say it's possible, and I can't absolutely guarantee it."

The research on zombie viruses has experimental arrangements every day. If there are prepared experiments in the laboratory when the virus breaks out, but the experiments are not carried out, then there may be medicine left.

Of course, as Song Huicheng said, it is only possible.

Xu Feng had a headache. Song Huicheng's proposal was to put everyone's fate on luck.

Although Xu Feng has always had good luck, doing this on such an important matter seems a bit childish.

But at this time, there is no better way, so I can only go down and give it a try.

The group did not waste time, they just found enough antibiotics in the laboratory to prepare for use in an emergency.

Although it will affect combat effectiveness, in the face of life and death, the choice is relatively simple.

Then the group began to head downstairs. Calculating the distance, they found that it was already hundreds of meters underground.

If the zombies here can be eliminated, converting it into a shelter may also be a good choice.

After all, it was built to deal with doomsday-level disasters. With a little modification, it can be put into use.

It has its own power supply, so as long as it can provide food and water, this is indeed a good choice.

All of this is Xu Feng's plan for the subsequent trials. After all, no one knows whether this is the real core.

If the trouble here is solved and the rules copy is still not over, then everyone will have to prepare for a long-term fight.

Just at this moment, a muffled sound suddenly came from the direction above the head.

Xu Feng was startled for a moment, and his voice was very low. If he hadn't had sharp hearing, Xu Feng wouldn't have noticed it for a while.

Subconsciously ask others, "Did you hear anything?"

Everyone just shook their heads in confusion, but the confusion only appeared for a moment.

Before anyone could answer, a continuous rumbling sound began to be heard, and the entire earth was shaking.

The lights flickered, and finally fell into darkness, causing everyone to sway back and forth.

The situation was a bit chaotic for a while. In the chaos, everyone could only rely on the walls on both sides to support their bodies.

This situation lasted for tens of seconds, the lights were completely turned off, and everyone fell into a near coma.

Fortunately, everyone's physical fitness was extraordinary. Xu Feng barely supported his body and used a flashlight to observe the surrounding situation.

The shaking caused some damage to the structure of the underground space, and the entire passage was somewhat distorted.

The most critical thing is the destruction of a large number of facilities, which may lead to the imprisoned zombies breaking out of their restraints.

There was no time to waste, Xu Feng urged, "Speed ​​up, we have to reach the next level as soon as possible."

Zhang Wenze's owl was still standing on Xu Feng's shoulder, unaffected by the darkness, and even saw the dangerous approach before Xu Feng.

"There are zombies..."

Even without reminding Xu Feng, he still heard the sound. The bullets in the gun were released, and the scattered zombies that rushed over were directly knocked down.

But more zombies are surrounding them, and everyone can only retreat while fighting.

In the dark environment, everyone can only rely on the light of flashlights.

In this way, many loopholes appeared, and many zombies suddenly jumped out from these loopholes.

Fortunately, there was no danger, and within ten minutes, everyone had arrived at the elevator.

The power had been restored during the sudden attack, but it was not a normal power supply, but a red emergency power supply.

It's a state of emergency, it's obvious to everyone.

Zhang Wenze also used the owl to express his speculation about the earthquake just now.

"The main building of Watson Pharmaceuticals has collapsed. If I guessed correctly, it was Jiang Cheng and the others who did it."

The main body of Watson Pharmaceuticals is already high. Even if Zhang Wenze stood on the roof of a residential building on the edge of the city, he could barely see the location of Watson Pharmaceuticals.

But now that Watson Pharmaceuticals is gone, and with everyone's straightforward feelings just now, Song Huicheng naturally guessed the answer directly.

In addition, after entering Watson Pharmaceuticals, they were separated from Jiang Cheng and his party, and they were not seen together along the way. Jiang Cheng and his party had every reason to do this.

In fact, it is understandable.

They probably knew about the existence of Watson Pharmaceuticals' underground research institute, but they didn't have enough confidence to break through.

They simply blew up part of the ground, trying to bury the underground threat forever.

It's just a pity that these people don't have much information.

Not to mention the guy who Song Huicheng said was the final boss, but the weird zombies who were mutated zombies. It would be unrealistic to trap these zombies here by means of burial.

No matter what, the actions of Xu Feng and his team will continue after all.

What's more, the escape route is also blocked, so the only option is to give it a try.

The power supply has been destroyed, and there is no option to start the elevator in the emergency power supply.

Everyone could only force open the elevator door, and then climb down bit by bit in the same way they entered the underground before.

The emergency lights were a little weird, and everyone knew that this was the most dangerous place in the entire institute, so the atmosphere suddenly became tense.

The first few people to go down were nervously alert to the surroundings, because according to Song Huicheng, all the people here were mutated zombies.

I can't say how many of them there are. I just know that each one is a huge threat to a single survivor.

Xu Feng was the first to come down and checked the surroundings, only to find some red and sticky secretions distributed in the nearby area.

I don’t know what the specific material is, it’s just plain disgusting.

Xu Feng frowned slightly and waited for the people behind him to arrive one after another.

But at this moment, Xu Feng and another survivor, who were the first to come down, swayed and had their ankles locked by something.

Then they pulled hard, causing the two of them to lose their balance instantly, and then rushed towards the darkness.

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