And at this moment-

A silent, but fearful 'roar' that could make everyone feel from within, followed by a cold wind—

Subconsciously, everyone present couldn't help but take a step back......

But then, everyone came back to their senses, looked at each other, and then walked resolutely towards the depths of the underground world—

However, as everyone walked towards the depths, they also noticed that there were suddenly some strange whispers in their ears.

As they deepened, these murmurs seemed like the sound of mosquitoes flying from the beginning, to now, the sound became louder and louder, like a bell, like thunder.

The voice seemed to be saying something, but when you listen closely, it sounds like a meaningless babble, which is maddening.

"Damn! In this case, it is not written in the intelligence materials! ”

Someone roared irritably.

"This shows that we are on the right track, and it also shows that we must solve this incident as soon as possible!"

The leader is the one with the same frowns, but he is more calm and experienced than the person before, and he knows that the more this time, the more he can't mess up.

"Let's go!" A professor beside the leader, with a solemn expression, took a deep breath, and said to everyone: "Even if there is hell ahead, we must move forward, understand things clearly, and help future generations!" ”

"Remember! We all swore by it! ”

Hearing this, everyone looked stunned, and then nodded silently.

Continue to walk forward in silence......

After a while......

Everyone shivered, and their expressions began to distort, but the cold feeling seemed to be aimed at the spirit, no matter how they adjusted the temperature of the equipment they were wearing, as long as they kept walking down, the chill would increase endlessly. At the same time, the murmurs echoing in their ears became clearer and louder, and even if they plugged their ears, those murmurs still echoed, as if the things that made these murmuring sounds were in their minds......

Boom Boom –

Suddenly, for some reason, the entire underground world shook violently-

"Damn! Is there an earthquake!? Someone in the team looked panicked and couldn't help shouting.

"Nope! No! The team leader frowned and said in a deep voice: "In the underground!" There's something! It's coming up! ”

Hearing this, everyone's eyes couldn't help but widen, and then they quickly became vigilant.

However, at this moment......

Shake......

Suddenly stopped......

"That thing, it's going somewhere else......" said the leader, frowning, "stay on guard, wait!" ”

"Yes!"

Everyone waited for a long time, but there was no movement around them - of course, the murmuring and the chill in the passage were still there.

After slackening down, the leader, no, it should be said that everyone, couldn't help frowning, and thought to himself: "Before, what the hell was going on?" ”

"Let's hope the other teams are safe......"

After a moment of silent thought, the leader said again, "Go ahead!" It's almost time to get to the designated place! ”

"Yes!"

………………

The other side of the underworld –

A team led by the strongest of the black-clad investigators.

Walking in this underground world, suddenly-

A violent tremor shook the crowd - this was underground, and if it collapsed, they would surely die.

But then, a word with indifference soothed the panic in everyone's hearts-

"Don't be afraid, this cave tunnel seems to have been strengthened by the unknown lifeform after investigation, and it will not collapse."

But the next moment, it was this indifferent word, which made their hearts jump again-

"Still, something seems to be coming in our direction."

Seeing that the middle-aged man in black, who had maintained a calm and indifferent temperament since entering this underground world, also showed a solemn and other look, everyone present knew that they were in danger!

However, despite this, everyone did not lose their temper, they all cautiously took out various props, and then became vigilant - to be honest, although they were assigned the strongest among the men in black, they were undoubtedly a burden to the man in black, because their physical fitness was slightly inferior among the rest of the personnel.

Therefore, although they were embarrassed, they involuntarily approached the man in black.

The vibration became more and more intense, more and more obvious, and then-

A loud sound appeared, and the sharp outer armor rubbed against the rock wall, making a cacophony of sounds. At the same time, at the moment when the huge figure appeared, a silent 'roar' turned into a wave of air that swept through the entire underground space-

"It's ...... What is it!!? ”

I saw a huge slug-like creature suddenly appear in front of everyone's eyes, unlike the usual slugs, the surface was smooth and soft, and it had a slime appearance, its whole body was covered with metal spikes, giving people a cold and cruel predator atmosphere.

Faced with this huge slug monster, I witnessed the posture of this huge slug monster. But it made everyone present panic, and then all kinds of negative emotions surged into their hearts, some of them were fragile, and those with weak wills even had a feeling of suffocation in their hearts, and fainted directly......

Relying on the props in his hands and body, and the strength of the middle-aged man in black who was not a weak man, he could barely resist the strange 'coercion' of the monster from outside the star in front of him!

Dangerous! Extremely dangerous!

All the cells in the whole body roared wildly, reminding the middle-aged man in black, but the middle-aged man in black was indifferent, in addition to knowing that he was fleeing, he had no life, it was better to fight, but also because of his duty, he had to fight!

With a cold look in his eyes, the middle-aged man in black didn't care if the people around him would be injured, and took out the big knife he had been carrying behind his back-

Brush!

The figure of the middle-aged man in black flashed, turned into a streamer, and slashed at the slug monster with a big knife in his hand!

Boom!

The sound of steel and steel colliding suddenly resounded throughout the underground space, and the powerful sound wave made everyone who had been sluggish come back to their senses due to pain!

At the moment when everyone came back to their senses, they heard the middle-aged man shouting: "Hurry up!" Report to the superiors, the danger here is the lowest, and there are also seven levels!! ”

"Now let's go! I'm going to hold it back! ”

Hearing this, everyone was stunned, and then immediately pulled out their legs and ran - it was not that they were cowardly, nor that they were selfish, but they knew that even if they were, it would be useless, and in that case, it was better to return to the camp with the news.