I don't know how long it took to fall downward, and I don't know what the depth is, Fang Hao was shocked in his heart, how did this giant pit appear?

Obviously, it was definitely not excavated by hand.

When Fang Hao excavated the hard stone wall before, the material he collected was displayed in the inventory as "Unknown Metal", which means that it was not any known element on this planet, it was likely to come from an alien planet.

In this way, this giant crater is also not the work of humans on this planet.

And, by any measure, it shouldn't be human.

First, there was no need for humans to dig such a deep crater, and it was still hidden underground.

Second, with human technology, it is difficult to dig a huge pit that is vertically downward and more than ten kilometers deep, or even tens of kilometers.

Third, the inner walls of the crater are all made of an unusually hard unknown metal, which in itself does not appear to have been made by humans.

In the process of falling, Fang Hao had basically figured out the origin of this huge pit.

"Brother Hao, it seems to be almost the end!" Zitong suddenly shouted.

Fang Hao also saw that although the ground was very dark, his eyesight had already far exceeded the limitations of human beings, as long as there was a little glimmer of light, he could magnify it countless times, and he saw the bottom of the pit earlier than Zitong.

In the center of the pit floor is a bulge, like a hill bun, somewhat similar to the shape of the inside of the bottom of some bottles.

"Be careful, we're going to land."

When he was about to touch the ground, Fang Hao used his body technique and forcibly moved more than ten meters laterally, unloading most of the potential energy, and then he took Zitong to run nearly a hundred meters on the ground before stopping.

There is nothing at the bottom of the pit, no treasures, no monsters, and of course, no immortals who sell immortal cheats.

"Brother Hao, it's so quiet here, there's no sound at all, it's so eerie and terrifying......" Zitong's voice buzzed at the bottom of the pit as she spoke.

Fang Hao was surprised, such a big pit appeared here, it shouldn't be empty.

"Let's go, let's look carefully."

Fang Hao took Zitong and walked back and forth at the bottom of the pit a few times, observing the ground and looking for possible secret passages.

The diameter of the crater was not too large, less than a thousand meters, and they quickly searched the bottom of the pit several times, but did not find any useful clues.

In the end, Fang Hao and Zitong sat in the center of the bottom of the pit, that is, the top of the hill bag, eating and resting.

Unintentionally, Fang Hao's hand was on the ground, he suddenly felt that something was wrong, the ground was very smooth, and it felt very similar to the previous iron wall, but he faintly felt that there were some subtle differences between the two.

He took out his flashlight and shone it on the dark floor, stroking it with his hand as he took a closer look.

Zitong didn't know what he was doing, so he asked, "Brother Hao, is there a problem with this floor?" ”

Fang Hao said: "You touch it with your hand, what does it feel like?" ”

Zitong slowly touched the smooth floor, and after touching it for a while, she suddenly said, "This floor seems to be made up of many small squares." ”

Fang Hao smiled: "Yes, it's like a small sugar cube." ”

Although the floor was very smooth, Fang Hao caressed it carefully, but he felt that they seemed to be made of small squares one centimeter square, and between each two squares, there was a very small gap, which was very small and not easy to detect.

Zitong suddenly said: "Brother Hao, what will happen if you take a hoe and hoe twice?" ”

Zitong knew that Fang Hao's hoe was very powerful and indestructible.

Fang Hao nodded: "I'll give it a try." ”

He took out his pickaxe and "dang" it against the ground.

"Boom!"

Hearing only a bang, Fang Hao and Zitong were all dumbfounded.

Fang Hao's hoe was like stabbing a hornet's nest, and countless small black cubes exploded on the ground, like a large black mist, covering dozens of square meters of space around it.

At the same time, a few lines of text appeared on the screen in front of Fang Hao's eyes.

"If you find a highly concentrated energy crystal nucleus, will you charge it?"

Highly concentrated energy crystal nucleus? Hearing the name is a good thing, Fang Hao hurriedly said: "Collect!" Of course! ”

"Running out of inventory space, do you want to upgrade?"

No wonder these energy crystal nuclei all burst open, and they didn't enter the inventory, so there was no empty space in the inventory.

He had just spent 1.28 million crystal nuclei, or 12.8 million energy points, to upgrade his inventory to 8,192 slots, but these spaces were all filled with those treasures.

"Level up!" Fang Hao was ruthless, and spent another 2.56 million crystal nuclei to upgrade the inventory to 16,384 slots.

As soon as he finished leveling up, he saw a new item in his inventory, and at the same time, all the small black squares that were flying in the sky just now were gone.

"Highly concentrated energy crystal nuclei, the number of 1 million."

Fang Hao glanced at the pit on the ground that was one meter square, and looked at the 1 million highly concentrated energy crystal nuclei, that is to say, this cubic floor was exactly 1 million highly concentrated energy crystal nuclei, a small square, exactly one cubic centimeter.

He set his mind on the highly concentrated energy crystal nucleus, examining its properties.

"A highly concentrated energy crystal nucleus that can release 100 points of energy."

Fang Hao's eyes suddenly burst into golden light, this is too against the sky, right? A small black square is equivalent to 10 first-order crystal nuclei!

Then, this cubic floor is 10 million crystal nuclei!

This pit turned out to be a real treasure!

As soon as he hoeed down, it was 10 million crystal nuclei......

Ten hoes go down, and it's 100 million crystal nuclei......

A hundred hoes are a billion crystal nuclei......

A thousand hoes are 10 billion crystal nuclei......

10,000 hoes are 100 billion crystal nuclei......

And at the bottom of this pothole, there are at least hundreds of thousands of square meters!

Fang Hao almost wanted to look up to the sky and roar, this pit was simply an invincible gift package given to him by God to Fang Hao!

Even if there is only a layer of highly concentrated crystal nuclei at the bottom of this crater, its number far exceeds the crystal nuclei possessed by all humans on this planet, and far exceeds the crystal nuclei possessed by all zombies.

"Brother Hao, Brother Hao, what are you smiling at?" Zitong saw that Fang Hao's eyes were shining, and there was a weird smile on the corner of her mouth, which made her a little scared.

Fang Hao came back to his senses at this time, he laughed: "It's okay, I'm happy, I'm so happy!" ”

With that, he picked up his hoe and hit the ground again.

This time, the one million highly concentrated crystal nuclei went straight into the inventory.

"Bang!" Fang Hao is another hoe.

Another million coming in.

"Bang!" Another hoe.

Another million ......

In the blink of an eye, Fang Hao dug more than a hundred times, and there were more than 100 million highly concentrated energy crystal nuclei in his inventory, which was equivalent to more than a billion crystal nuclei, or 10 billion points of energy.

"Brother Hao, these little squares are very useful, aren't they?"

In the past, Zitong often watched Fang Hao mining, but whether it was gold mining or iron mining, Fang Hao had a serious face, and that was the normal working state.

But today, when Fang Hao was digging these small squares, his face was beaming with joy, and the corners of his mouth were excitement that could not be hidden, it seemed that these small squares must be very valuable.

Fang Hao nodded: "Of course it's useful, it's very useful, it's almost as important as air to us, we can't do without it......"

Power points can not only buy ordinary weapons and items in the shop, but also buy a large number of skill books, and skill books are an indispensable and important strategic resource for cultivating an invincible army, as long as he has power points, he can pull out a powerful army in a short time.

Fang Hao was immersed in the great excitement of making a fortune, and suddenly, he felt a sudden chill all over his body, and he hurriedly shouted: "Zitong, be careful!" Get out of the way! ”

Before Zitong could figure out what was happening, he felt a mountain shake under his feet, and hurriedly jumped up and jumped into the air.

"Boom ......"

With a loud bang, at the bottom of the pit, countless highly concentrated energy crystal nuclei were blasted into the air, and hundreds of millions of small squares filled the bottom of the entire pit in an instant.

Fang Hao looked at these energy crystal nuclei, since they were not mined by his own hoe, they did not automatically enter his inventory, if he wanted to collect them, he could only use the hoe, or touch them one by one.

But at the moment, neither approach seems to be feasible.

A behemoth, more than a dozen feet tall, slowly emerged from these flying crystal nuclei.

"Little ant, disturb my dreams, rob me of my food, you are in danger today!" The monster spoke, and strangely, Fang Hao didn't know what language it spoke, but he could understand it all.

At this time, Fang Hao and Zitong had been forced to the edge of the pit, and in front of this behemoth, the two of them were really as small as the ants it said they were.

The two men stared up at the beast in amazement.

It has a strange appearance, its head is like a human, its face is like a beast, its body is even stranger, it has six legs, four legs on the ground, and the other two legs are like two arms, it looks extremely weird, of course, it is more terrifying than weird.

Fang Hao only took a second to make a judgment, although he had confirmed that he was invincible in the world before, he was not too sure of defeating this big man.

If Zitong wasn't there, he might try again, and even if he couldn't beat him, he still had the confidence to run away.

But now, with Zitong by his side, he didn't dare to take this risk—it couldn't even use the word risk, and he could conclude that as long as he fought this monster, Zitong would have no way to avoid it in such a narrow pit, and the end would definitely be certain death.

Therefore, Fang Hao could only retreat.

"Zitong, let's go!" Fang Hao pulled the child, and the two of them quickly retreated into the air.

"Let's go? Where to go? A huge palm of the monster slammed towards Fang Hao and the others.

Fang Hao kicked the smooth iron wall hard, and the two of them rose more than ten meters again, dodging the slap of the giant beast.

Fang Hao threw Zitong behind his back: "Stick to my back, don't look up!" ”

After saying that, a bazooka suddenly appeared in his hand.

In mid-air, he aimed the bazooka at the monster's head, pulled the trigger, and with a "whoosh", the rocket roared towards the monster.

With a wave of his palm, the monster actually grabbed the rocket in the palm of his hand.

"Boom!"

The rocket exploded in the monster's hand.

However, the monster only screamed twice in pain, but its palm was not materially damaged.

"How dare you hurt me!"

The monster roared angrily, and its body jumped high, swatting at Fang Hao and the others like a fly.

At this time, Fang Hao and Zitong were almost attached to the edge of the iron wall, if they were photographed by the monster on the iron wall, the two of them would definitely become two pieces of raw meat on the spot.

"Zitong, hold me tight! Don't move! ”

Fang Hao reminded Zitong that another bazooka appeared in his hand.

However, the muzzle of the bazooka was aimed at his own chest.

"Boom!"

As soon as Fang Hao pulled the trigger, the rocket exploded instantly, and Fang Hao and Zitong were blown up and flew more than twenty meters into the air.

Thanks to this explosion, the two of them were able to dodge the monster's blow.

Fang Hao was hit in the chest by a rocket, although he was not too injured, his body was still blown to a blur of flesh and blood, and his clothes were all burned to ashes.

Zitong lay behind Fang Hao, she was almost uninjured, but the loud noise and shock wave of the explosion still made her dizzy, and she almost let go and fell.

Fang Hao took advantage of the impact of the rocket explosion and stepped on the iron wall again and again, and the two of them climbed steadily, and in the blink of an eye, they came to a height of nearly two thousand meters away from the pothole.

"Whew!"

The giant beast at the bottom of the pit let out an angry roar when it saw the two of them speeding upwards, and it jumped high and stepped on the iron wall, wanting to pursue Fang Hao and the others.

But alas, its size is large, speed is not its strong point, it climbed a dozen times in a row, not only did not shorten the distance between the two sides, but got farther and farther away.

Fang Hao looked down at the giant beast and was relieved to see its clumsy figure.

"Brother Hao, how's it going?" Zitong asked behind Fang Hao's back.

Fang Hao heard that her voice was a little weak, and hurriedly said: "It's okay, we've already got rid of it, we'll leave here immediately, you hold on!" ”

The power of the rocket is too great, Zitong's real strength is only a third-level evolutionary, and it is far from being able to withstand the attack of the rocket, although she has no external injuries, but her mind will still be damaged.

Fang Hao's feet stepped on the smooth iron wall again and again, like a gecko, and he rose rapidly along the iron wall.

Even if he was fast enough, he still couldn't go up and down, so it took a lot more time to get out than to come in.

Fortunately, the beasts below were getting farther and farther away from them, and at first they could hear the roar of the beasts, but then they got smaller and weaker, and finally they couldn't hear anything at all.

Apparently, the Behemoth had given up chasing them.

Carrying Zitong on his back, Fang Hao didn't know how long it took, and finally saw the torch at the entrance.

He hurried to the torch, stood at the entrance of the hole, put the boy down, and then took out his hoe and dug the blocked hole again.

"Okay Zitong, how are you? Can you walk? ”

Zitong nodded: "Okay, Brother Hao, I'm fine." ”