The elf-like woman's electronic voice repeated several times, then fell silent. Sun Dashuai quickly returned the same way.

When he came to the entrance of the cave just now, he found that in front of the open metal door, there was a green transparent bridge full of light spots.

Sun Dashuai stepped on it, it was very solid, no different from stepping on the ground, and it was more elastic!

After a while, in the mist on the other side of the green light bridge, the figures of Arina and the others appeared, their faces full of surprise.

"Big handsome man, you're amazing, how did you do it! Look here, it's amazing. ”

Sun Dashuai shook his head with a smile, made a silent gesture, and then hurried to the control room with his four friends.

In the control room, he quickly pressed the "close" button, retracted the light bridge, opened the protective force field, and the metal door on the cliff wall quietly closed again. He didn't want Long Qiyun and them to come to a praying mantis to catch cicadas and yellow finches, so he copied his own back road.

When everything was cleaned up, Sun Dashuai finally breathed a sigh of relief. The five of them rested on a few chairs and tables in the control room.

To be honest, this underground expedition, Sun Dashuai was tired enough, and the use of combat stunts such as "Sleepy Eyes" consumed a lot of his mental and physical strength, and the four friends were also injured in the battle.

Soon, some of the dry food, dried meat, clean water, and fruit were consumed by them. After treating the injuries of the four friends, Sun Dashuai meditated for another hour.

He doesn't know what awaits them yet, and recharging is a necessary step before embarking on a new adventure.

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Two hours later, Sun Dashuai, Yalina and the others stood in front of a silver-white metal door and waited quietly.

Not long after, with a soft "ding" sound, the metal door opened. The crane on the cloud slid in first, and Sun Dashuai and the others followed in one by one.

With a "click", the metal door closed, and after a slight sense of weightlessness, a red arrow with the pointer pointing up appeared on the electronic screen, and Sun Dashuai knew that the elevator had begun to go up.

For coming to such a place that has not yet been destroyed and is full of a sense of science and technology, Sun Dashuai has an inexplicable excitement in his heart.

Although it was an illegal entry, it shouldn't be too much of a problem to think of the voice of the electronic female elf: "orc warrior" or something, right?

The Beastmaster City where he is located, according to his memory, is obviously still a reckless era, and now how can there be such a high-tech "orc base"?

And it was clear that this place was clearly a certain relic of the orcs, so the dark creatures and humans were blocked by the protective force field.

Sun Dashuai secretly glanced at Yalina next to her, although the little girl was very calm, her slightly pale face and clenched hands still showed the tension in her heart.

Seeing her so nervous, Sun Dashuai couldn't help but shake her hand, and Yalina glanced at him shyly. Yes, there is a handsome guy here, what is there to be afraid of. At that moment, the elevator stopped and the door clicked open.

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Silence, deathly silence. Even the bright lights in the hallway couldn't offset the chill in the hearts of the five adventurers.

If there is a large space, there is no figure as far as the eye can see. When Sun Dashuai and the others walked out of the elevator, the sound of the armor, iron shoes and leather boots coming into contact with the floor suddenly echoed in the corridor.

Connected to the outside of the elevator is a state-of-the-art disinfection tunnel, 50 meters long, which is used to check and eliminate all germs carried by those who enter it.

Despite the lack of people around, the purple lights on the four walls of the passage did their job, a faint blue-purple glow emanating from above and shining on the five people.

Sun Dashuai didn't feel anything about these lights, although the four mutant friends had cultivated and evolved to a certain extent, they still felt slightly uncomfortable with this purple light!

It wasn't until the five of them reached the end of the passage that all of these blue-purple lights disappeared. When he first came in, Sun Dashuai used his mental power to probe it, and there was a dressing room on the left and right at the end of the passage.

It should be that after changing into work clothes inside, you have to go through a 50-meter disinfection passage before you can officially enter the place that looks like a laboratory inside.

However, for them, the process of changing clothes can be saved.

Out of the passage, the metal door opens automatically, but inside is a very casual hall, with a few sofas and coffee tables, and a few oil paintings on the walls, which looks more like a café than some mysterious underground space.

However, Sun Dashuai didn't think the atmosphere was very romantic, because it was not popular, and the whole hall was empty, cold, and full of a dull sense of oppression.

"Ah, handsome man, there are three passages, how do you get there?" asked Arina after a sudden pause.

"Oh! I think about it. Sun Dashuai looked at the three passages connected to the hall, and pointed directly to the one in the middle and said.

"This says the main experimental area, let's go here first, maybe after getting there, we can basically figure out what this place is, but such a strange place, there may be danger at any time, everyone cheer up and be vigilant. ”

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After finishing speaking, Sun Dashuai took the lead and walked to the middle!

Just now, Sun Dashuai used his spiritual power to diffuse and investigate, in this metal space, his spiritual power was even more restricted and compressed, and now he could only detect a distance of 5 or 6 hundred meters. But he still knows a little bit about the basics.

The whole space seems to be a huge underground base, and the place where they came from should be the lowest level of this base, maybe the exit of the sewers. It is estimated to occupy less than one-tenth of the entire underground space.

At this time, Arlina and the others also took out their weapons and carefully walked forward step by step. Although Sun Dashuai felt that they were a little too careful, he still took his battle axe in his hand and took the lead and walked forward slowly.

There are more than just walls on both sides of the passage, and after a short walk, you will see a transparent work door with large and small laboratories inside.

When passing by an unclosed laboratory, Arina couldn't help but look inside curiously, but saw a pair of hairy animal legs outside, which frightened her and immediately followed Sun Dashuai's footsteps honestly.

A few minutes later, after Sun Dashuai and the others had already walked a long way, the legs, which seemed to have no life, slowly twitched.