It was more than a day.

Lindsey was able to dig up a meteorite pickaxe with two clicks.

Born in the mountain next to the bottom of the crater, a large flat with a wide surface was dug out!

The meteorite spirits and meteorites here were all cleaned up by him, not to mention.

For more than a day, he continued to consume essentia, opening up more than thirty infinite pools of water here, while at the same time inserting torches every few meters to provide ample lighting for the place.

Wait until the project is finally completed.

Lindsay stood at the entrance, looked around with satisfaction, and couldn't help but nod:

"Yes, that's good!"

"Such a big project, I was in the sand pit when I was a child, I couldn't even think of it!"

At this point, Lindsay has the environment ready.

But as the saying goes, it's also necessary to leave yourself a way out.

So he opened the map and aimed at the path he had carved out in the crater walls above.

Lindsay was going to dig tunnels at different locations in this mountain space to connect to the spiral track leading to the surface.

In this way, even if there is a battle afterwards.

It is also possible to quickly get back to the ground through these escape routes.

"At my rate, it will probably take about half a day......"

Lindsay calculates the time and scope, ready to continue building her own vantage point.

But at this moment, the calculation in his mind suddenly stopped.

It's not that I found that something went wrong with my project, or that something suddenly broke out around me.

Instead, on the map in the properties panel, Lindsay found that he saw a special scene.

Directly below the crater, there is also a huge cavity!

Considering where he is now, that is to say, there is a hidden space hidden beneath this mountain range at the edge of the world!

At this moment, Lindsay first remembered [Wisteria Branches].

After all, this is the only item that was found from a location that was also hidden at the edge of the world.

But immediately after, Lindsay remembered one more thing.

He had seen a passage in the first draft of the expedition's map.

A member named Seka once found a crack in the ground by a river that led to an unknown underground space, and his companions also indicated that there was a living wind there.

According to this statement.

This huge cavity hidden beneath the mountains may also be related to the discovery of a former expedition.

"In the underground of the hidden border, there is still a cave...... Wait, that's not right! ”

Lindsay just wanted to sigh.

But another question quickly ran into his mind.

There is such a huge cavity in the ground that this meteorite should have smashed directly through this layer of the earth and collapsed when it fell a hundred years ago.

Why did it stop at such a position of only a few tens of meters?

All the memories of arriving at the hidden frontier came flooding back.

Endless mysteries abound, and hypotheses and speculations come to life in Lindsay's mind.

Why did the huge meteorite land not have a huge impact on the whole world; the growing earth on the edge of the world; The hidden frontier does not correspond to the ancient record of the edge of the world......

Such complex thinking led to a result.

New text began to appear on his taskbar.

【The True Face of the World】

[The hidden frontier world itself seems to have hidden secrets, and it doesn't seem to be the frontier of the universe, try to unravel its secrets.] 】

[Task reward: Choose one of the four major elemental emblems, a large number of attributes/skill experience points.] 】

“……”

"The true face of the world?"

Seeing the new information on the taskbar, Lindsay's heart fluttered.

There was an urge to find out the truth right away.

But thinking about the current situation in the town, he still forced himself to calm down.

"Judging from the mission rewards, exploring the truth of this so-called world will definitely not be a simple matter, and no one knows how long it will be delayed."

The current situation of the crater.

It is definitely the most important thing for the border town that has taken care of Lindsay for more than three years while teaching him all kinds of knowledge.

Even if you really want to explore the secrets.

At the very least, inform the town of the news of the crater, and at the same time use the [Brilliant Bullet] in your hand to dispose of the dragon beasts of the Black Mountain World.

"It's not time for me to discover the truth......"

Whew-

At this moment, Lindsay suddenly found that the cave she had dug was much brighter.

Even on the wall in front of him, the silhouette of the shadow he cast on it became clearer.

Sudden light!

"I didn't have a new torch, how could it be so bright?"

Lindsay had a bad feeling in her heart.

He turned his head to look behind him.

Sure enough, he began to dig the entrance to this cave himself.

A bright yellow-white flame came in from here at some point!

Look at the map.

The red color, a symbol of hostility, is marked on the opposite side!

I don't know whether to say bad luck or inevitable.

Those elemental creatures that were already extremely active at the bottom of the crater and were scurrying around actually got into this space by chance!

"Oh no, I haven't dug my escape route yet!"

Lindsay cursed, her expression rather ugly.

But he is also quick to accept reality, and has put away the meteorite pickaxe in his hand and changed into his own weapon at the same time.

Fire elemental beings are inherently violent and fiery in nature.

As soon as it burrowed into the cave that Lindsey had dug up, it was immediately overwhelmed by the water vapor produced by dozens of infinite pools around it.

But at this time.

It found Lindsey with a hoe on her shoulder, preparing to dig an escape route.

Rumble!

The elemental creature's body erupted in flames.

Immediately after that, a huge fireball with a diameter of about half a meter flew towards Lindsay's position with a scorching aura.

"Fireball?!"

Lindsay saw it very clearly.

This fireball has a vivid orange-red color, and the temperature is definitely not low.

Even before he flew in front of him, the rapidly rising temperature change around him made him understand the power of this attack.

Lindsey dodged and jumped to the side, ready to dodge the fireball.

But almost at the same time, the fireball flying in the air also tracked Lindsay's sudden turn, clenching like a conscious hound!

"Can you also track intelligently?"

Lindsay's eyes widened.

He quickly turned around and continued to dodge, but the fireball kept tracking him, and even if he made four or five turns in a row, it could not mislead the opponent's path.

"It's endless!"

Look at the state of this elemental creature.

The flames on its body rose again, and it was obvious that it would continue to unleash attacks!

"If it goes on like this, it will definitely be blocked!"

The situation is rapidly deteriorating.

Even though Lindsay has the [Flame Streak] that has just arrived, the color of this fireball ......

No matter how you look at it, it doesn't look below 1200°C!

At this moment, a flash of inspiration flashed in Lindsay's mind, and he remembered the attribute description of the Meteorite Spirit before.

[Thermal sensing]

The flame creature in front of him was not a Flame Spirit.

But they are also elemental creatures of the fire attribute, and they were born in one place, maybe the opponent's attacks also refer to this principle?

The situation is urgent.

Lindsay didn't have time to think about it, so she immediately took out a fire bomb from her bag and smashed it directly into the ground on the side.

Rumble!

In an instant, the flames contained in the bomb exploded.

And the good news is that it's exactly what Lindsay guessed.

The tracking fireball fired by the elemental creatures was also immediately misled and detonated prematurely before it hit Lindsay.

This fireball is indeed tracked by thermal sensing!

(End of chapter)