Though Mo Xue was extremely sharp, the internal pipeline barriers of this base were exceptionally thick and difficult to break through.

Just then, a muffled sound came from further down the pipeline.

"Su Mo, do you hear anything unusual?"

Su Mo stopped and listened carefully. He noticed the muffled sound was getting closer. He said in a low voice, "Yes, and it's coming towards us."

Qiancheng Xue immediately drew another classic edition silenced automatic pistol from her waist.

Su Mo quickened his pace of hacking.

The muffled sound grew closer and closer. Soon, pairs of scarlet eyes appeared in the distance. Swarms of miniature mechanical spiders rushed over at high speed.

Qiancheng Xue didn't hesitate to open fire.

Bang, bang...

Every shot hit a mechanical spider, and the leading ones were instantly destroyed.

Seeing this, Su Mo accelerated his actions, desperately hacking at the thick metal barrier. Soon, a breach was created.

"Qiancheng Xue, go up!"

"You go first."

Qiancheng Xue replied calmly while continuing to shoot.

Su Mo didn't waste any words upon hearing that. He nimbly climbed through the opening and shouted,

"Come up!"

Qiancheng Xue took out a grenade from her waist and threw it at the incoming mechanical spiders. Then, she reached out and grabbed Su Mo's hand.

Su Mo's strong arms directly pulled Qiancheng Xue up.

Boom!

The grenade exploded.

The two looked around at each other. Above the pipeline was a low interlayer filled with a complex network of wires!

"Let's go!"

Su Mo gripped Mo Xue tightly, pushed aside the obstructing wires, and moved forward.

He had a strong premonition that danger was approaching.

...

In the underground central system of Qilong City, a prompt box appeared in front of the artificial intelligence.

"Clearance failed. Rats have entered the interior of Qilong City."

Unfortunately, most of the artificial intelligence's processing power was focused on the main battlefield. From the images displayed, two fourth-generation mechs had already met and were currently tearing up the surface of Qilong City.

The artificial intelligence was rapidly generating various combat data and transmitting it remotely to the puppet system,

Guiding weapons to defeat their targets.

Unfortunately, all of this was not going smoothly.

Therefore, after the task of eliminating the rats failed, the artificial intelligence automatically generated the next level of conventional response plan.

"Deploy the Purger killing machines..."

It did not dispatch more powerful hyper-organisms to hunt them down!

Meanwhile, Su Mo was running with Qiancheng Xue in the interlayer. However, they hadn't run far before Qiancheng Xue glanced back and saw a swarm of mechanical spiders catching up.

"They're catching up."

"I know."

Su Mo replied in a deep voice. His head was also aching.

At this moment, Su Mo saw a light to the side. Without a word, he changed direction.

It had to be said that their luck was really good. There was a vent ahead, which should be the end of the line.

Su Mo swung Mo Xue and quickly hacked open the vent cover.

"Down!"

Qiancheng Xue nimbly jumped down, landing steadily on the ground. She surveyed her surroundings. All around were operating mechanical devices. It seemed to be a machine room, and she didn't find any dangers.

"Come down quickly! There are no enemies here."

Su Mo was about to jump down when a sharp metal blade swept over. Su Mo subconsciously raised Mo Xue to block.

The enormous force knocked him away.

Before the flying Su Mo could react, a pair of hands caught him. He felt like he had crashed into something soft, and a fragrance filled his nostrils.

Su Mo came to his senses and realized he was lying in Qiancheng Xue's arms. At that critical moment, she had caught him, and the two of them had fallen heavily to the ground. Then, Su Mo awkwardly scrambled up and apologized.

"I'm sorry."

At that moment, a loud crash!

The sharp metal blade struck the vent hard. The giant mechanical spider was trying to force its way out, but its size was too large, and the pipe exit was too small. It was stuck for the time being.

"Let's go, we need to leave here."

Qiancheng Xue also got up at this time, her face calm, and said.

"Okay!"

The two briefly surveyed the surrounding environment and found a steel door not far away.

They ran towards the exit, opened the machine room door, and rushed out.

Blinding light shone directly into their eyes.

Su Mo and Qiancheng Xue subconsciously raised their hands to shield their eyes. Having been in a dimly lit environment for a long time, they were not used to being in a bright area for a while.

After a dozen seconds, their eyes gradually adjusted, and the scene before them completely shocked them.

They found themselves in an underground cavern made of steel. At the bottom of the cavern was a lost, giant mechanical city.

Looking out, this lost city was filled with all kinds of steel buildings, and in the center was a magnificent domed building.

The strangest scene of all was that all kinds of lighting facilities in the city were brightly lit, like a living city.

And they were now standing on a high slope at the edge of the city.

"What's going on? How can there be a city under Qilong City? If this is a real city, what's above it?"

"I'm not sure either, but this city looks very strange!"

...

Click!

A loud noise interrupted their thoughts.

Su Mo and Qiancheng Xue turned their heads and looked at the machine room door. The giant mechanical spider was too big to get out. It began to forcefully shrink back, making way for the arriving miniature mechanical spiders.

"Go!"

Su Mo shuddered and took the lead, sliding down a slope.

Qiancheng Xue followed closely without hesitation.

Soon, the two slid awkwardly to the edge of the city. They ran into the city and entered a street.

The street here was no different from a real city street. The street was made of concrete. A large number of green plants were planted on both sides, and the strangest thing was that these green plants were growing very lushly, with no signs of withering.

There were all kinds of stores on both sides of the street, and the windows of the stores were plastered with various sale posters.

In the street ahead, you could see the backs of some people.

There was a family of three, wearing fashionable clothes, holding hands, and the child in the middle was holding a floating balloon.

For a time, the perception of the whole city was completely different from that of the outside city.

Su Mo and Qiancheng Xue were also stunned. Did people really live in this city? The two quickly hid next to a street bench on the side of the road.

"There seems to be someone in front, should we get closer?"

"It's a bit troublesome. If there are really living people, they are probably hostile. After all, we seem to be invaders now. It's best not to let them discover us."

Su Mo replied with a headache.

"If there are really living people, we should contact them and try to clear up the misunderstanding."

Qiancheng Xue shook her head and replied frankly.

"You're right, but in my opinion, it's not that simple. Because if there were really living people, they would have stood up long ago. It's impossible to remain silent until now, unless they are trapped here."

Su Mo directly stated his guess.

"No, that possibility is too low."

Qiancheng Xue directly rejected it.

"Why?"

Su Mo asked curiously.

"It's very simple, the scene in front of us is too harmonious, which makes it seem a bit strange."

"Now that you mention it, I've noticed it. Why don't I find a place to hide first, then grab one and check it out?"

Su Mo suggested directly.

"Okay, let's do that."

Qiancheng Xue didn't have a better idea, so she could only adopt Su Mo's suggestion.