"Bang!" In a dark space, two huge figures fell to the ground.

"About forty meters high. Sally straightened up, thinking.

Due to time constraints, the two did not walk down the spiral staircase normally, but jumped directly down.

Based on the time spent in the air, Sully calculated that it was about forty meters tall.

What is the concept of 40 meters tall? It's about 15 or 6 stories tall on Earth.

In the underground of the Rock Empire's royal city, there is actually such a deep space.

"Zizi Zi ....." Layton's body flashed with electricity, illuminating the dark underground space.

At a casual glance, the visible space was already very large, at least no smaller than a football field, with a height of about twenty meters.

"Dah

The underground space is very quiet, and the sound of the two walking is amplified by echoes.

"Dadada....."

The more they walked, the more space was exposed, and so far, the space that the two of them had walked through was more than ten football fields.

And, weirdly, in such a large space, Sully didn't find any other creatures, normally, at least some rats, cockroaches, or anything, but in reality, there was nothing here.

Along the way, I didn't see any buildings or anything.

The ground is level, but there is no trace of the road.

The walls, although not as flat as the floor, have a strange structure and are semicircular. Although Sally had not studied architecture in his previous life, he still knew some basic common sense.

This kind of structure, at forty or fifty meters underground, is basically impossible to support such a large space.

The theory is so, but the facts are right in front of you.

Suddenly, Sally stopped.

Leighton also stopped a meter behind Sully, without a single glance, and the lightning flashed on his body, illuminating the surroundings of the two.

"Nucleus!" Pitch-black slime bubbled up from all over Sully's body, enveloping Sully in a matter of moments.

Sally opened his eyes, and his senses came out again, and his senses had changed dramatically.

Sense-like sentience scans the surroundings.

The red-glowing eyes give Sully the ability to see in the dark.

Previously, although Sully's visual abilities were excellent, he also had night vision.

But seeing in the dark and seeing at night are two different concepts.

No matter how strong night vision is, it also needs a faint light source, which cannot function in a completely dark environment.

Seeing in the dark can also be useful even in complete darkness.

"Let's go!" said Sally, turning and walking in the other direction.

Now, Sully is almost certain that this underground space is definitely not built by ordinary people.

Under the divine senses, Sally found that this dirt floor was even smoother than he imagined, and the hardness of the ground had surpassed that of most stones.

"So, how did this underground space come about?" Sally couldn't help but think.

.........

"Huh?" Sally, who was moving fast, paused suddenly, then walked forward at an even faster pace.

"Rails?" In the underground, Sully's scarlet eyes were fixed on two black strips on the ground.

Sally was familiar with this thing, but in this world, it was the first time he had seen it.

These are two equally spaced railroad tracks, which stretch into the depths of darkness and lead somewhere.

Whether the distance between the two railroad tracks is the same as that on the earth, regardless of the moment, the important thing is that here, in this world, why are there railroad tracks?

In Sully's perception, there was no such thing as four wheels that could run on railroad tracks.

Sully stretched out his palm, and a large amount of black slime appeared, twisting and deforming, and finally forming a rudimentary 'train'. It's the kind with only one board, four wheels.

"Sit on. Sally said, and then stepped on the 'train' first.

Leighton didn't ask, and sat in the back.

Since the essence of the 'train' is venom, it doesn't need any power at all.

Sully's mind moved, and the 'train' started!

Sully's idea is simple, the existence of railroad tracks cannot be useless.

So, it's not that there are no trains, it's just that people have taken them.

Mysterious underground space, train tracks. So, where does this track lead?

In a few moments, the 'train' left the large empty space and entered a dark tunnel.

Under Sully's control, the 'train' appeared and disappeared in the tunnels.

Suddenly vanished, and then reappeared thousands of meters away.

Sully's spatial capacity was used to shorten the distance considerably, but due to the small space in the tunnel, the dim lighting, and the fact that the track was not a straight line, Sully's spatial ability was limited.

......

"Whew....." Sally heard a loud sound of wind next to him.

Sully's heart was shocked, and at the same time, a glimmer of light appeared.

The light grew brighter and brighter, and soon the entire tunnel was illuminated.

Sally stared straight ahead, and suddenly, the rudimentary train made by Sally disappeared.

When it reappeared, it was a silvery space illuminated by white light.

Sally got up and stepped off the 'train', followed by Layton.

Sally's palm rested on the platform, and the 'train' turned back into liquid, which was absorbed by Sally.

Looking at the silver space in front of you, and looking at the humble tunnel behind you, it was like two worlds.

This silver space is large, larger than the mountainside space of the witcher.

Moreover, the architectural style of the two places is similar, but it looks more complete and sci-fi here.

The silver metal walls reflected the white light shining in from nowhere, and a few dozen meters in front of the two of them was a neat green forest, each tree of about the same height and spacing, which should have been cultivated artificially and carefully cultivated.

Well, the previous question has been answered. This is another base for the aliens, and the space they came over should be another base that has not yet been built.

After entering the silver space, Sally accurately sensed the breath of the other two groups.

It's a demon soldier!

Layton looked at Sally, he also sensed the aura of the demon envoy over there, and the two sides were fighting.

"Master!" Layton began.

"Huh?" Sally turned his head to look at Leighton, who hadn't decided whether to go over right away or wait for them to split the game before picking up the pieces.

"I can win over the royal envoys first. Layton said.

Hearing this, Sally's eyes lit up.

"Good!"

Sally was worried about running away from a few demon envoys in the melee, after all, each demon envoy has its own magical abilities, and it doesn't mean that if the combat power is strong enough, it will definitely be able to kill the other party.

It's like a magic messenger that Layton told him.

The magic soldier of the [Sword of Nothingness] enables the body to transform between the virtual and the real.

If this magic soldier wants to run, even if Sally can bite the opponent with the ability of spatial shuttle, he can only survive until the opponent is exhausted, which is time-consuming and laborious.

And right now, what Sully lacks most is time.

After seeing this base, Sally had another guess in his heart: Is there another reason for the blood mist to attack the royal city?

............