Chapter 265 Underground Big Bang

The disadvantage of open pit mines is that the mines are scattered and the collection rate is very low.

Now Jia Zhengjin needs more mines to build new buildings!

So he needs a new mine, preferably an underground mine rich in resources!

The mines in the underground mine are relatively dense, and the collection rate is also very high. Of course, the efficiency is unmatched by the open-pit mine!

Of course, mining is a little more difficult without mine carts and lamps.

Jia Zhengjin packed his backpack full of materials early in the morning, and then rode a fake dragon on the road alone. Activate the skill of finding mineral veins, and investigate carefully in an area slightly away from the Holy Dragon City.

Open-pit mineral veins are easy to find, because as long as the skill is turned on, various colorful mineral veins will appear in front of you. But the underground mineral veins are a little more difficult. After all, they are buried deep underground, and they may not be visible even with skills. Some things that can be seen are only very small spots of light, and if you don't pay attention, you will miss them.

Fortunately, Jia Zhengjin was lucky. After spending half a day, he finally found a place full of tiny light spots.

This vein is about eleven kilometers northeast of Sacred Dragon City, which is quite a distance!

However, there are no large ferocious alien animals and monsters nearby, only some relatively docile herbivorous and insectivorous groups exist. You can work with peace of mind here!

The veins are so deep that even when Jia Zhengjin landed on the ground, he could barely see densely packed sesame-sized spots of light of various colors. According to preliminary estimates, it is at least five or six hundred meters above the ground.

Before mining, of course, you must make full preparations! Moreover, it was impossible for Jia Zhengjin to mine the mine alone, so the materials prepared earlier in the backpack came in handy.

Because the minerals are relatively rich, such an underground mine is five or six times the sum of all the open-pit mines I found before! And Jia Zhengjin also needs to obtain minerals more quickly.

So he directly built a level 1 kobold lair in the open space, and then built a mine next to the lair.

Immediately after that, 500 kobold miners were recruited with raw meat and stationed in the mine. Another 500 were recruited to stay in the nest.

Immediately after the recruitment was completed, 1,000 kobold miners gathered in the open space. He took out the pickaxes and stone shovels made by 500 kobold craftsmen in the factory the day before, and fell to the ground to form a hill. Looking at the kobold, he said, "Get an iron pickaxe and a stone shovel each, and wait for my order!"

All the kobolds acted immediately, and stepped forward to get them from this tool hill. After each got the two tools, they stood in the open space in front of Jia Zhengjin.

Looking at the kobold troops densely packed in front of him, Jia Zhengjin ordered loudly: "Start from this area, use stone shovels and iron picks, dig down in steps, and go down to the mining area all the way. The line goes down, leaving a gap between dozens of kobolds. Alright, act now!"

After receiving the order, the kobold miners immediately got busy and started digging down in a neat queue. They dig three blocks, then two blocks forward, one block down, and two blocks forward. This repeats infinitely, creating a path leading underground.

Because the underground is dark and there is currently no lighting equipment such as miner hats, so only some kobolds can hold torches first.

The team does not move down quickly, and it can be estimated that it will take quite a while.

Jia Zhengjin simply went to the side and sat under a big tree, closed his eyes and rested.

The speed at which the kobold miners collected was astonishing. Coupled with the iron picks and stone shovels produced by the system, the kobold in charge took the lead, quickly dug down the pit, and then began to advance in a stepped and inclined manner.

Listening to the jingling sound in my ears, I watched the kobolds outside relay the soil and stones out of the ground one by one, and pile them up in the spacious open space aside. Jia Zhengjin leaned against the tree trunk in satisfaction, preparing to take a little sleep first.

Wait until the kobolds have dug through the path and reached the mine, and then go down to check the overall situation.

During this period of time, he was very tired every day, and various things reduced his rest time. Especially when the elves came to the city, due to customs, there would inevitably be some small frictions with humans. Just appeasing all parties has already made him exhausted. There are only five or six hours of sleep left every day.

Therefore, when I was quite sleepy, I fell asleep without knowing it.

I was dreaming a sweet dream, suddenly there was a deafening thunder in my ears, and then I felt the ground tremble a few times!

Jia Zhengjin was startled awake in an instant, and looked around blankly, "An earthquake?"

"Aww~~" The kobolds who were collecting stones and dirt not far away all screamed at him desperately.

There was already a mountain of piles behind these kobolds, and Jia Zhengjin hurried over to put the astonishing amount of soil and stones into the virtual backpack first. Then he looked at the kobold miners and asked, "What's going on?"

"Aww~" the kobold howled desperately towards the mine.

Could it be that something happened below? Could it be some dangerous underground creature? Jia Zhengjin was fully armed at once, holding a golden shield in his hand, and jumped down with a golden spear: "Illumination!"

Immediately a kobold came down, held up a torch and walked in front of him.

With the faint light of the torch, Jia Zhengjin, led by the Kobold, moved down the bottomless steps.

He felt strange, except for the hundreds of kobolds standing outside, the ones digging all the way down didn't move at all?

He kept walking obliquely and downward, at least a thousand meters or so, when he was almost exhausted, the kobold leading the way in front let out a sharp cry: "Aw~ow~"

Jia Zhengjin followed immediately, only to be surprised to find that the steps ended here, and there was an extremely huge pothole in front of him.

Could it be a natural formation? Jia Zhengjin approached the past, and felt that the temperature of the nearby soil and stones was quite high. When I looked down, I was stunned!

In the huge circular pothole with complex shapes, there are kobold corpses lying in all directions. Every kobold is mutilated, buried under dirt and stone. The scorching breath rushed towards his face, like a furnace. But there is no flame or anything that can generate heat inside.

"Huh?" Jia Zhengjin looked around, studied for a while, and finally found the reason!

Everything in the pothole is very similar to the situation after the big bang. And he could faintly smell a special smell. Looking back carefully, it seems to be methane gas! But probably the big bang just now consumed all the methane gas, so there is only a little bit of stock left that is not enough to create a second big bang!

Bad luck! Seeing that Jia Zhengjin approached the steps of the underground mine, he was speechless! Unexpectedly, these kobolds accidentally dug a vein of natural methane gas, and now they are using torches for lighting, thus triggering a terrible explosion. The biogas was exhausted, and the five or six hundred kobold miners were all dead, and a huge pothole was blown out here!