Lin Yue's guess was not wrong.

The most central lake surrounded by ore is really an acid rain lake.

After the last acid rain flood receded, most of it seemed to have evaporated and seeped into the soil, but some were preserved in cracks surrounded by rock formations or craters like this large lake.

The acid rain lake in front of Lin Yue Gate is one, and there is also one here.

When Lin Yue, Xiao Bai and Xiao Meng pushed the corpses of the lizardmen into the lake, they soon found that bursts of white mist were rising from the lizardmen's bodies, and soon, the scales fell off, and as the corpses sank, the fog became thicker.

The flesh was constantly corroded by the water of the lake, and then gradually disappeared.

The body of this lizardman actually became a skeleton in this acid rain lake, and finally sank!

"Good guy, if you want to fall, it's just gone."

Lin Yue didn't know how deep the lake was, but no matter what it was, it seemed that as long as it was a living thing, it was estimated to be a dead word.

Isn't that acid rain just as powerful?

Even if it is contaminated, it will be like the corpse of the lizardman just now, completely doggy.

Lin Yue sighed at the miracle of the acid rain, and continued to throw more lizardmen's corpses into the lake.

Xiao Bai and Xiao Meng also worked hard, although some of them were no different from pieces of meat, but they still followed their owners and kept carrying them.

It didn't take long for the lizardman's corpse to be emptied, and Lin Yue was finally able to dig out the natural sulfur ore.

"Robot dog, start!" Lin Yue took the robot dog out of the storage space and pressed its switch again.

Next, set up the program and label the natural sulphur ore,......

After some operation, the robot dog approached a rock with small steps that he did not recognize, and the alloy claws on the mechanical arm grabbed the iron pickaxe and began to hit frequently and with great power!

Little by little, the natural sulphur ore was knocked out, and after the ore was knocked out of the way, the robot dog turned to the other side of the rock and continued to tap.

Xiao Bai and Xiao Meng stood aside, and they were extremely surprised to see that this iron pimple could actually make this.

They even forgot to keep throwing the lizardmen, and saw the ore fall to the ground and pile up into a hill.

Lin Yue was satisfied to see that the robot dog's mechanical arm could even stretch to a height of about two meters, and the ore above could not stump it.

At the same time as the mechanical arm is digging, the limbs of the robot dog are also used as fulcrums on the ground, making it more stable as a whole, and the falling gravel can't help its alloy body at all.

After digging a boulder, it followed the program, found a rock next door, and continued mining.

"The needle doesn't poke." Lin Yue was very pleased with this, and the efficiency was even similar to that of him wearing an exoskeleton.

Finally, after the Xiaoice lizards became small helpers in greenhouse harvesting, robot dogs also became small helpers in mining.

If the parts can be collected, then the second and third mining robot dogs can be manufactured, and it is only a matter of time before all the natural sulfur ore mountains in this large circle are mined.

After Lin Yue picked up another iron pickaxe and turned it into a diamond iron pickaxe, he found a problem.

"There aren't enough universal upgrade blueprints."

Now, there are only two universal upgrade blueprints in hand, and the usefulness of this thing after that is still quite large, if it is subject to this, then it is indeed a big problem.

After all, there are a lot of places that need to be upgraded.

Xiao Bai and Xiao Meng were still throwing lizardmen into the lake, and the robot dog was already working on the third stone, Lin Yue decided to take advantage of this time to take a look at the long-lost survival point mall.

"Well, there's still 16,170 points...... How many universal upgrade blueprints can I buy? "The last time he was at the end, he bought something that would increase the purchase price once he bought it, from 300 points to 1,000 points, and it is estimated that it will go up if he buys it again.

But even if this thing rises to 3000 points, it is still worth it absolutely.

And...... Lin Yue felt that he could also exchange various things, after all, it only cost 100 survival points to buy that thing at the beginning, and almost all survivors could be satisfied.

Although he felt that the survivors should know how good this thing was, the blueprint was not so important compared to some necessities.

"Sure enough, if you buy one, you have to add 100 points to the original base."

After buying 5 tickets, after spending a total of 6,500 points, Lin Yue really felt that the survival point cost of this thing was really huge.

"Why don't you try to collect it?" He opened the trading panel.

[Seller: Lin Yue]

[Auction item: 1 bottle of wine, 20 bottles in total]

[Required: Universal upgrade design drawing]

[Seller's note: Auction, the highest bidder wins]

After putting this away, Lin Yue was surprised to find that many people had already quoted the things needed for mechanical arms such as cylinders, cams and precision electric actuators.

Lin Yue happily came to a wave of transactions with a few people, and received 5 cylinders, 7 cams, 4 precision electric pass rods and 3 guide devices.

Now, with the addition of the original parts, you can make at least 3 robot dogs equipped with robotic arms at once!

"Wonderful." Lin Yue closed the trading panel and said he was very pleased.

When he gets back, he'll come and get a robot dog team, and tomorrow he only needs to come here to supervise the work, and maybe even tomorrow he will be able to finish the mine here.

Thinking so, Lin Yue used the two shelter blueprints he had just obtained from Xing Lingfeng, and after building two new warehouses connected together in another place, he also picked up the diamond iron pickaxe and joined the mining ranks.

Time flies.

As he placed a large wooden box full of natural sulfur ore into the last bit of space in the underground shelter, the mining work for the day came to an end.

Xiaobai and Xiaomeng also walked back.

While he and the robot dog were mining the ore, the two little ones were doing their tossing work and had been looking for any clues about the lizardmen near the Great Lake.

They did make some gains, finding dozens of holes that went underground, but after digging a few meters, they found that they were completely blocked and could not be entered.

Lin Yue knew that these lizardmen would not dare to come again, at least when he was there.

He glanced at the time, it seemed that it was just noon, and enough ore had been collected to fill the huge space that had originally formed four shelters, and even the newly built shelter he had made.

As much as I want to continue, there are other important things that I need to keep going.

After resealing the shelters in the two places and reconfirming the situation nearby, Lin Yue restarted the ATV with the ore that filled the entire storage space.

Lizardman ......

What kind of technology does this creature have? Why is it that you can master gunpowder and still use weapons such as stone spears and spears?

The sound of the ATV engine sounded.

It galloped in the direction of the main sanctuary.