The air was filled with the smell of gunpowder, and just as it was about to explode, a slight cough broke the silence.

"Ahem."

Yu Lie and Zhou Ran rushed to Lu Instant's side at the same time.

"Lu Xian, can you hear me?" Yu Lie said anxiously.

Lu Xian closed his eyes and nodded slowly.

"Water ......"

"Xiao Zhang, get water!" Yu Lie shouted loudly.

When Lu Xian was fed a few mouthfuls of water, he opened his reddened eyes.

At this time, Zhou Ran only stared at Yu Lie's arm supporting Lu Xuan, for fear that he would suddenly make a move. He knew that even though it might not be useful to do so, he couldn't let his guard down until the last minute.

"Captain Lu, what the hell is going on, who killed them?" Zhou Ran couldn't hold back any longer and asked.

What Zhou Ran said was exactly the question that everyone wanted to ask, so he unconsciously held his breath and waited for the answer to be revealed.

However, hearing this, Lu Xian's expression suddenly became hideous, as if he remembered something terrible, and then slowly dimmed.

"No...... Know ......"

Hearing such an answer, everyone breathed a sigh of relief, especially Zhou Ran, but the doubts were still not resolved.

"What's going on, you speak slowly." Yu Lie said.

Lu Xuan took a deep breath, tried to balance his breathing, and then exerted all his strength, raised an arm tremblingly, pointed to the disc in the center and said, "It's ...... It suddenly lit up, and then a monster appeared......"

Hearing the word "monster" made everyone nervous again, as it reminded them of the moving motif with its mouth wide open at the bottom of the spiral staircase.

"We ...... He was about to retreat down, but the door was closed, and there was confusion...... The door opened, and we ......."

Lu instantaneously narrated intermittently, and the sound of heavy breathing tugged at everyone's hearts, for fear that he would not be able to come up in one breath.

"Let's go in and ...... Then the door closed automatically, and it was dark......"

"Captain, let him rest for a while, he's weak now." The team member who knows first aid said.

Yu Lie ignored it and continued to ask, "Then what happened?" ”

Lu Yan swallowed a mouthful of saliva and said with difficulty: "Mix ...... That's when the chaos began, and some people started shouting, 'There are ghosts,' and then they started fighting like crazy......"

Zhou Ran and Yu Lie looked at each other suspiciously, and at this time, the two solved the misunderstanding.

"Why did you fight?" Zhou Ran asked suddenly.

"No...... I don't know. ”

"And then, how did you get hurt?" He continued.

"As soon as I got up to pull, I was stabbed in the shoulder," Lu instantly gradually sobered up, and he had the strength to speak, "and then he was hit in the calf again, and finally he was slapped on the back of the head by a sapper shovel, and he didn't know anything......"

After listening to Lu Xian's narration, several people fell into deep thought, wondering why good people were "crazy"? In addition, is the "monster" in Lu Xuan's mouth the same as the terrifying pattern they saw below?

"Captain, it's all my fault, I didn't protect them well!" Lu instantly cried in annoyance.

"I don't blame you, don't think about it, heal your injuries first." Yu Lie comforted.

......

When Zhou Ran followed Yu Lie to the bottom of the disc, Zhou Ran said sincerely: "Captain Yu, I want you to apologize, I shouldn't have wronged you!" ”

As he spoke, he bowed to Yu Lie.

Yu Lie finally showed a smile and said, "I can answer your two questions now. ”

"Huh?"

"I'm completely unaware of the sluggish response to some things since I got down to this place." Yu Lie said, "During this period, I also tried my best to think about it, but I couldn't find the slightest sign of this result, so I said at the time that I couldn't explain it, and it was really inexplicable." ”

Zhou Ran stopped and nodded ashamedly.

"As for drinking, I'm pretending."

"Why is that?"

"You know, in addition to being experienced, you also have to be vigilant at all times." Yu Lie explained, "At that time, everything about the 'artificial passage' was only from you, so I am very skeptical of your claim. ”

"Of course, I did fly a helicopter to the place you mentioned, but found nothing. So, I've always been skeptical about this and won't talk about it too much. ”

"Obviously, pretending to be drunk is the best way to do it." Zhou Ran said.

"Yes."

The misunderstanding was cleared, but the doubts were not cleared, and more importantly, how they got out of here.

"Just now Lu Xuan said that this disc suddenly lit up, I think he should be referring to the ball."

Yu Lie nodded and said, "Could it be that this ball is weird?" ”

"No, I have to take it down and take it down!"

As soon as the words fell, Yu Lie turned around and found his backpack, took out the climbing rope, threw it up with a "whoosh", and then climbed to the top very easily.

However, the strange thing is that when Yu Lie took the sphere off, the light of the operating table and various equipment did not disappear, and not even the slightest change occurred.

"Can this thing only be used once?" Zhou Ran couldn't help but think.

Yu Lie held the ball and observed it carefully, except for a groove around his body, there were no other abnormalities. Then, he handed it to Zhou Ran beside him.

Zhou Ran reached out to pick it up, but he didn't expect it to be empty because the light was too dim. With a dull crash, the ball fell to the ground.

When Zhou Ran was about to pick it up, the ball began to glow purple!

Unlike when it was first opened, the orb did not crack, and the light changed from dark to light and then from light to dark. Although the brightness is not high, it is extremely penetrating.

Even from the high platform on the second floor, it can be easily seen.

"Ahh Lu Xuan exclaimed, "Run, it's this kind of light!" Monster ......"

At the same time, the spiral staircase leads to the underneath the tunnel opens again, and a layer of mist slowly rises.

"Into the Dark Passage!" Yu Lie shouted and began to run towards the spiral staircase leading to the second floor.

Zhou Ran suddenly panicked, but fortunately he didn't forget to pick up the ball. When he reached the edge of the spiral staircase, Yu Lie had already landed on his back and ran over instantly, followed by several team members.

"Professor Zhou, hurry up!"

Zhou Ran hurriedly turned on the flashlight and stepped down the steps without hesitation, followed by Yu Lie.

Although he was carrying a person on his back, Yu Lie's steps were still firm, and his body only shook slightly.

Immediately behind Yu Lie was Xiao Zhang, and when he stepped down the first step, the door of the secret passage began to close. Moreover, the speed of closure is gradually accelerating!

The moment Xiao Zhang's head entered the dark passage, the door closed completely.

However, the four people behind were not so lucky, and with a few screams, everything came to an abrupt end.

After more than ten seconds, there were a few slight "pops" at the bottom. The few who survived knew what that meant.

When they descended to the ground with palpitations, they saw several miserable legs......

"Professor Zhou." Yu Lie winked at Zhou Ran, and then looked up.

Zhou Ran understood, raised the flashlight in his hand and slowly shone it above his head, but did not find a monster with a bloody mouth, but an ordinary pattern.

Strangely, there was no fog at this time.

Yu Lie put Lu Yan down, opened the backpack and was dumbfounded, he came down from it in too much hurry, and he actually took the wrong backpack!

"The 'self-response lamp' has fallen on it......," Yu Lie said reproachfully.

Without a "self-response lamp", relying on the only flashlight in your hand, you will soon lose your "light", what should you do next......

Seeing this, Zhou Ran and Xiao Zhang hurriedly opened their backpacks and found that there was only some food and water, and a walkie-talkie.

With these things, at least you can survive for a while.

Due to the sudden situation just now, Lu instantly fell into a deep sleep again, and the three of them took the opportunity to replenish some food and water.

"Captain, why did you say that terrible pattern disappeared again?" Xiao Zhang couldn't help but ask.

Yu Lie saw that Zhou Ran was studying the ball, so he said, "I don't know either, but this ball may be the key to our out." Isn't it, Professor Zhou? ”

Zhou Ran nodded and said, "I also think so, at least the two doors of the operation compartment are controlled by it, but we don't know how it operates." ”

"When it landed just now, the ball must have hit a certain part and triggered the switch, so it emitted a purple glow." Yu Lie said as he reached out and took it from Zhou Ran, and then looked at it carefully.

Groove, just one groove.

Yu Lie inadvertently put his thumb into the groove, and the other four fingers were naturally placed on it. However, just then, an amazing scene appeared!

I saw that the ball began to glow purple again, exactly the same as when it was in the operation compartment.

The three of them stood up quickly, each handling the sapper shovel in his hand, and Yu Liekong tried his best to restrain his trembling hands before he threw the ball out.

Everything around immediately seemed eerie, but nothing appeared except for a thin layer of mist......

Zhou Ran suddenly thought of something, and raised the flashlight to quickly shine towards the pattern. Sure enough, the bloody mouth reappeared.

Yu Lie and Xiao Zhang were taken aback, and helped Lu Instant to run.

"Don't worry!"

Zhou Ran seemed calm instead, the light of the flashlight kept hitting the pattern, and the terrifying picture was vivid, as if he was about to pounce on them.

However, in the end, it did not pounce......

"I see!" Zhou Ran turned off the flashlight, "This ball is a kind of switch, it controls the fog here, and the fog can produce a certain reaction, making the pattern 'live', maybe it will make us hallucinate." ”

Yu Lie felt incredible, and the expression on his face was gloomy, as if he was trying to figure out something......

"At this moment, the door of the secret passage should be open." Zhou Ran said, "I dare to judge." ”

"Professor Zhou, no!" Xiao Zhang looked at him suspiciously.

"If you don't believe me, go check it out!"

Xiao Zhang glanced up, smacked his tongue, and quickly shook his head. Whether it's an illusion or not, the legs I saw just now are real, and even if I borrow 10,000 guts, I don't dare to rush up.

At this moment, a figure suddenly rushed up, and with a "bang", Yu Lie fell down with a muffled snort. Xiao Zhang's eyes widened in shock at the scene in front of him, and before he could react, a bright dagger had already been inserted into his chest!