Seeing them leave, Chu Yao's heart sank gradually!

He punched the wall angrily, with a look of unwillingness in his eyes.

Several of the subordinates around him fell down one after another.

Chu Yao himself felt that the strength in his body was slowly draining away.

If this continues, all of them will die here!

You can't just wait and do nothing!

Chu Yao gritted his teeth and quickly took a look at the situation on the first floor.

There are also some research rooms next to it, where detonators should be found.

Do it, maybe there is still a chance!

Thinking of this, Chu Yao quickly called to the rest of the people who did not faint, "Come with me!"

Those subordinates didn't understand Chu Yao's intention, but they did it anyway.

Everyone followed Chu Yao to one of the research rooms.

Inside, it was also filled with fog.

However, Chu Yao was asked to find some usable materials on the table.

The method of compounding chemicals is not complicated, but their power varies.

And the materials are limited, whether it will work or not depends on luck!

Chu Yao asked someone to find a location that was easier to blast, and then arranged the medicines.

After tossing, he ordered, "You all back up!"

Hearing the words, the subordinates immediately withdrew a certain distance.

After Chu Yao saw it, he immediately pressed the activation device.

After a while, the liquid medicine in the glass beaker began to tumbling, and then a chemical reaction occurred again.

In a few minutes, a flash of fire flashed,

There was a loud bang.

After the explosion, a cloud of smoke appeared ahead, and immediately the situation there was revealed.

The power was not as great as expected, only a crater was blasted on the wall, but the ceiling did not suffer any damage.

Chu Yao looked a little disappointed.

Still not working?

At this moment, suddenly, there was a "bang" sound, which was louder than the sound here just now.

It looked like something had exploded.

The direction of the source of the sound... seems to be above their heads.

Explosion?

Why are there other explosions?

Is the Seven Killing Gate trying to blow up this building?

As soon as this idea came up, Chu Yao vetoed it again.

If it is detonated, then the power is not so small.

More likely, maybe the big brother and the others have arrived!

In Chu Yao's heart, hope was rekindled.

"Mr. Chu, what happened?"

"Is it the aftershock of the explosion just now?"

The subordinates obviously also heard the movement just now, and they all looked up at the ceiling.

Chu Yao shook his head and said: "The power I made is too small to have this effect. It's the upper layer...someone did the same thing as us."

"Could it be someone from the Seven Killers?"

Everyone's expressions froze.

Chu Yao guessed: "It shouldn't be, maybe it's the people who came to save us, everyone should disperse first, and check the source of the sound!"

"it is good."

The subordinates quickly spread out to confirm.

After a while, one of them pointed to the top of Research Institute No. [-], "Mr. Chu, it seems to be from over there."

Chu Yao immediately came over to check.

Through the glass, he could see the ceiling of Research Institute No. [-], which was constantly shaking, and the lights on it were shaking constantly.

Chu Yao immediately ordered, saying: "Everyone, stay away from the No. [-] research room!"

Everyone nodded, and immediately retreated a long way.

During this process, Chu Yao was inevitably a little nervous.

After all, this is just his guess.

If it is not their own people who come to the rescue, then the only thing waiting for them is death...

……

At this time, upstairs.

It was the same as what Chu Yao guessed.

It was indeed Di Shijing and Lu Yanjue who were ordering someone to blow up the tunnel entrance.

Ten minutes ago, Lu Yanjue's people found the map of the institute in the central building and immediately sent it to them.

Di Shijing and Lu Yanjue quickly observed and identified, and finally determined the blasting direction.

It's right above the No. [-] research room!

If it succeeds, it will directly hit Professor Will and others...

At this moment, both Di Shijing and Lu Yanjue retreated not far away, staring at this scene closely.

Qin Xi's heart was raised, and she stared intently.

Lu Yanjue looked serious.

Although the surrounding area has been protected to avoid a series of explosions, he is a little worried that the movement above is too large, causing a large area to collapse.

However, the expected situation did not happen.

After the first explosion, the effect is not significant, but it is obviously feasible.

Therefore, Zhan Tingxiu arranged for the second preparation.

A few minutes later, the subordinates came to report, "Leader, the pipe has exploded, and there is a gap, which can accommodate one person down, the first floor!"

Lu Yanjue lifted his spirits, and immediately said: "I'll go down first."

He was the one who arranged for the fourth junior brother and the others to stay in the research institute. If he doesn't personally bring them back safely, he will not be able to get through that test in his heart.

Zhan Tingxiu did not agree.

He directly took the gas mask from his subordinates and said, "Let me get off first! I know you are worried about them, but you don't know the dangers below. It's safest for me to go. If you don't worry, follow up later." .”

"Let Ting repair it."

Di Shijing also seconded.

Among the people here, the most skilled person is Zhan Tingxiu.

When he goes down, he can use the fastest speed to deal with Professor Will's group!

When everyone heard what Di Shijing said, they immediately had no objection.

Soon, Zhan Tingxiu put on the gas mask and walked towards the gap first.

"Be careful, and call immediately if something happens."

Di Shijing reminded him beside him.

Zhan Tingxiu nodded, squatted down, and jumped directly without any protection.

In just a few seconds, he was already on the ground floor...

But to my surprise, there was no one around.

After making a simple confirmation, he looked out. Through the glass, there was a space shrouded in fog.

As for the side, there is a big hole, which looks like an underground passage...

Before Zhan Tingxiu understood what was going on, Di Shijing received a call from Jiang Liushen first.

"Leader, just now the signal on the negative floor was interrupted for a short time, which resulted in the failure to report the situation in time. Professor Will seems to be leading someone and escaped from the secret passage. Now Mr. Chu and the others are almost unable to hold on!"

Di Shijing's complexion changed slightly, and he made a decisive decision, and shouted at Zhan Tingxiu below, "Tingxiu, open the door! Professor Will has left with someone, it's important to save them!"

Zhan Tingxiu below did not hesitate when he heard the shout, and immediately went to press the master control button on the wall.

After a while, the special door on the negative floor was opened.

At the same time, Zhan Tingxiu also walked out from the No. [-] research room...

At this moment, Chu Yao has also reached his limit.

There was no one around him, and all his subordinates passed out due to excessive ingestion of poisonous gas.

He was left barely holding on...

However, he was about to be unable to hold on any longer, and he was still standing right now, just relying on a sliver of instinct, gritted his teeth and carried it.

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