It is said that today's barren lizard was once an ancient forest, and it was even preserved as a forest park 3,600 years ago, before the last civilization was destroyed.

But because of the meteorite landing, the rune beasts were rampant, and the ecosystem was quickly destroyed, it caused this place to become like this.

But in the underground of the barren lizard mound, there are eye-catching rich mineral resources, and the Federation has been paying attention to this place, but it has not yet decided to exploit it.

Dong Ze and the others ran wildly after the truck, and soon saw a dark hole in the ground.

Stopped, the two of them lay on a high slope, under the moonlight, the surrounding cold wind gusted, rolling yellow sand, a few breaths of effort can bury the bodies of the two.

"How can there be a mine here?" Xiao Xiaotian said suspiciously.

It is impossible for these people from Black Wind Village to dig such a large mine.

Dong Ze said: "The hole was not dug by them, it was left by the pangolin, the pangolin likes to feed on ore, this hole is likely to be its lair, but it was discovered by the people of Black Wind Village." ”

"Looking at the diameter of the hole in the ground, what you said is indeed right," Xiao Xiaotian was a little puzzled, "I said Dongze, you kid has been to the wild a few times, why do you look like a veteran?" ”

"Once."

Xiao Xiaotian was surprised for a while, and was about to ask more, Dong Ze directly raised his hand and said, "They are still checking the equipment outside, and they don't know what the situation is inside the cave." ”

"I'm good at this!"

Xiao Xiaotian smiled and took out the Falcon No. 2 from his pocket that had just almost done something bad, and said: "The main function of Falcon No. 2 is to provide a survey system, as long as we put it into the hole and fly around, we can get the three-dimensional 3D map model it transmits back." ”

"With this kind of good thing, why didn't you take it out earlier?" Dong Ze couldn't help but look at Xiao Xiaotian twice, this guy's invention sometimes works quite well.

Xiao Xiaotian laughed dryly, didn't answer, and directly threw the Falcon No. 2 out, and at the same time used his rune watch to control it.

No one cared about a bird, so Falcon 2 flapped its wings and flew into the burrow unimpeded.

Only the bald head scratched the back of his head and cursed at the falcon that entered the hole in the ground to find death.

"The specific map still needs to be systematically mapped, and we can now see what is going on in the burrow through the eyes of Falcon 2."

The two retreated to the rear, backed by the dunes, and began to watch the images transmitted back by Falcon II.

The Falcon II's visual system is not yet complete, the picture is very shaky, and as it progresses, the clarity decreases a lot.

But for the time being, it will not affect the two of them observing the scene in the cave.

Under the treatment of night vision, after the Falcon 2 passed through the narrow hole, the scene in front of it suddenly opened up, and a huge space appeared about thirty meters underground.

Here, the ground is covered with finely crushed red agate!

"Look at the walls, it's all agate!" Xiao Xiaotian's arm trembled a little, it was the first time he had seen such a large number of agate.

How much is it worth!

"Don't be blindly excited, resources are scarce now, and the agate with a big fist may not be as valuable as the blue crystal of a blue crystal fox, instead of coveting this, it is better for you to bring back a few white flame crystals in a while." Dong Ze poured a basin of cold water on Xiao Xiaotian's head, in order to prevent this guy from doing stupid things for a while.

Xiao Xiaotian wiped the saliva from the corners of his mouth, and finally calmed down: "Continue to go deeper and see what is inside." ”

What can make Brother Feng so concerned and let the pangolin protect with his life is definitely not as simple as a small agate mine, and even Dong Ze is very curious.

This agate vein has long been drilled in all directions by the lizard, and the Falcon No. 2 got into a small hole after leaving that relatively wide space, and soon lost its way, and even Xiao Xiaotian himself didn't know where the Falcon No. 2 was now.

"Don't worry, the 3D map will be completed soon."

Xiao Xiaotian's voice fell, and Brother Feng and his party had already carried Bai Yanjing on their backs and walked towards the mine.

"It's too late, I think I'll have to follow up and see." Higashizawa said.

"Right now...... Right away...... All right! ”

Xiao Xiaotian snapped his fingers, and the picture projected on the rune stone watch was no longer the perspective of Falcon 2, but a 3D three-dimensional underground map.

On top of the picture, the underground extends in all directions, and hundreds of underground holes are intertwined with each other, like an underground labyrinth, just looking at it, it is dazzling.

Not only that, but there is also a small part of the map in the unsurveyed shadows, and the so-called treasure guarded by the pangolin in Brother Feng's mouth has not been seen.

"Pass the map to my rune's watch." Higashizawa said.

"No problem!"

Xiao Xiaotian took out two miniature headphones from his backpack, handed one to Dong Ze, and the other was attached to his ear, and said: "This is also my invention, which can not only allow the two of us to keep talking, but also transmit your location information in real time." ”

"Good."

Dong Ze gave Xiao Xiaotian a thumbs up, so that Xiao Xiaotian could stay outside and help him show the way through the rune stone watch and micro headphones.

Could this be the man behind the legendary hero?

Looking at the back of Dong Ze following the Fu of Black Wind Village into the hole, Xiao Xiaotian withdrew his eyes, and the corners of his mouth rose slightly.

"It's funny, it's so interesting, it's like in the movies, I've wanted to be a hero behind the scenes for too long!"

Xiao Xiaotian's last dislike is to charge into battle, for him, making a bunch of powerful inventions, or sitting in a secret base full of computers, giving orders to other people, is what he wants to do the most.

"Higashizawa, can you hear me?" Xiao Xiaotian silently took out a Xiaoice box from his backpack, which contained two cans of iced Coke.

"Yes."

Whew——

Xiao Xiaotian opened the can of Coke and inevitably made a sound, in order to avoid embarrassment, Xiao Xiaotian said: "How is the environment in the cave?" If you're scared, I can tell you a joke. ”

“…… Let Falcon Two pay attention to their location. Dong Ze ignored Xiao Xiaotian's "joke".

"No problem!"

Xiao Xiaotian took a sip of Coke and burped again, before giving an order to Falcon No. 2.

The body of the Falcon 2 is equipped with a remote sensing system invented by Xiao Xiaotian himself, and the previous map mapping was also completed through the remote sensing system.

At this time, Falcon 2's body continuously emits sound waves, like the positioning of bats, and begins to refresh the underground content in real time through echoes.

Xiao Xiaotian looked down, there were some small points of light on the map projection, and he said slowly: "Brother Feng and his party are about thirty meters in front of you, and not far ahead, they will be close to the space full of agate fragments we saw just now. ”

(End of chapter)