During this time, there were two water exchange places in the West End.

They are the Lord's House and an organization called Blue Earth. Not to mention the Lord's Palace, it is the actual ruler of the entire Western District.

The Blue Earth organization was founded by a mysterious person who seems to be a celestial. Although this organization has only been established for a short time, it has grown extremely rapidly.

In less than a month, about 600 people have become members of the Blue Earth.

Originally, the Lord's Mansion was able to rely on the sale of high-quality drinking water to control the mid-to-high-end market in the entire Western District. Only those poor scavengers were forced to go to the Blue Earth Organization to exchange for some inferior drinking water.

In the meantime, though, the format has changed.

The Blue Earth Organization has also begun to sell high-grade drinking water, which is not contaminated with any toxins and is only half the price of the Lord's House.

This made the whole West End fry all at once.

Even in the southern district, which is close to the western side, many people have heard the news and exchanged large quantities of drinking water at once.

At the same time, the Blue Earth organization also offers some rare electronic devices, such as working mobile phones and computers.

These are rare items that waste pickers have dug out of the garbage heaps. Most of them are damaged, and no one has been able to repair them at all. Generally, the parts that can still be used are removed and then used to repair the existing equipment.

But here at Blue Earth, you can buy almost new electronics. That's a bit surprising.

No one knows how they got their hands on these things, or how Blue Earth repairs them. But no one could refuse these things, and even the Lord's Mansion bought a lot of these fine electronic devices.

It's just that these devices only accept gold for exchange. Since the scarcity is expensive, the exchange price is naturally quite high.

For example, before the end of the world, a cheap mobile phone that cost less than 1,000 yuan has now increased its price tenfold. And only gold is accepted. To make matters worse, the price of gold is not as strong as it was before the end of the world. At that time, one gram of gold could be exchanged for more than 300 red coins. But now one gram of gold is worth at most thirty red coins.

This back and forth is equivalent to a hundredfold increase in the price of a mobile phone.

This is a huge profit within a profiteering.

But this can't stop those rich waste pickers, and even some big organizations from rushing to buy.

A mobile phone costs 300 grams of gold, which is equivalent to 100,000 red coins.

A computer costs 600 grams of gold, which is equivalent to 200,000 red coins.

If this is placed before the end of the world, the proper sky-high price, except for the real tyrants, no one can afford to buy it at all.

But the power of the masses is unlimited.

In just one week, Lin Chen collected more than 15,000 grams of gold in this way, and then exchanged all of them for gold points.

Seeing that the golden point in his hand exceeded five figures for the first time, Lin Chen was so excited that he almost jumped up.

I saw that Lin Chen hurriedly called out the door of truth, wanting to quickly rise to the next level.

"McDonald's, you have money, krypton, hurry up and give me another level!"

"A third-level alchemist is a watershed!"

Just when Lin Chen's heart was full of joy, a basin of cold water poured down the Gate of Truth.

"Lao Lin, yes, it's actually five figures, but it's not enough to upgrade. To ascend to the third level, one hundred thousand gold points are required, which is equal to one hundred kilograms of pure gold. You're not enough to stuff your teeth! ”

As soon as he heard the words of the Gate of Truth, Lin Chen almost jumped up: "What are you talking about, one hundred thousand, are you kidding?" That's not the case with a lion's big mouth, right? ”

"Eh, Lao Lin, I didn't cheat you, I am the door of truth, and I follow the principle of equivalent exchange. The laws of this world are particularly strong, and to break the shackles of the laws, you need to sacrifice more gold than you might think. The first three levels, each level is raised, and the golden points are multiplied by a hundredfold! ”

"And once you break through the fourth level, you still need other rare materials to break through the bottleneck."

Hearing the words of the Gate of Truth, Lin Chen was taken aback.

"What, you need other rare materials to break through the fourth level, don't bring such a cheat!"

As soon as Lin Chen saw the rare materials, he felt bad, this is not krypton, this is krypton. Rare materials, this one doesn't sound so easy to get your hands on!

You know, in another world, anything that is considered a rare material by the Gate of Truth is super difficult to get.

The devil knows what kind of thing in this world would be considered rare material by the Gate of Truth.

Anyway, gold is definitely not a rare material in the eyes of the Gate of Truth.

"Forget it, let's take one step at a time!"

With a huge sum of money in his hand at one time, Lin Chen didn't hide it, and directly waved his hand to repair fifty high-energy batteries.

With the battery, Lin Chen's spore purifier is complete.

Load the high-energy battery into spore purifier 2. 0, this new equipment is complete.

Lin Chen, who got the new equipment, immediately asked Lao Zhao to come over.

And when Lao Zhao came over and saw the function of the spore purifier, he almost stared out of his eyes.

To be honest, he never thought that in this last day, someone would be able to design such a magical device.

To put it bluntly, now that human civilization is withering, it is not easy to maintain the existing equipment. Now that a new device has been designed, and it is also a device that can purify spore toxins, how can this not be surprised by Lao Zhao.

"Lord Lin Chen, this, this is what you designed?" Lao Zhao asked.

"That's right, I call it Spore Purifier 2. Version 0, this is the final product optimized by Biyuwei Little Girl, to put your purified bacteria into this device, let's take a look at the effect! ”

After speaking, Lin Chen handed the spore purifier to Lao Zhao.

After receiving this strange device that was similar to a boiling water bottle, Lao Zhao couldn't help but be surprised, the appearance of this thing really looked like a thing, and he didn't want to look like it in those handicraft workshops.

It's just that he doesn't understand where Lin Chen and Bi Yuwei made this thing.

In the last days, human beings have long lost the ability of precision machining, and it is not easy to make such things.

However, Lao Zhao is still self-aware and knows that there are some things that he should not ask.

So he directly followed the method Lin Chen said, and put a culture tank for cultivating and purifying bacteria into the spore purifier.

Waiting for the bacteria to be put into the purifier, Lao Zhao activated a micro display screen above according to Lin Chen's method, and then soon a set of data appeared in front of everyone's eyes.

There are ten units of bacteria, and one unit is about 100,000 bacteria.

In the pressure and temperature adaptation, it is automatically set to the environment that is most suitable for purifying bacteria.

It is estimated that the best purification time will be ten hours, please wait...

Seeing this interface information, even if Lao Zhao was still suspicious before, he now has to admit that Lin Chen has created an invention that can change the world.

It is a mobile decontamination bacteria production base that automatically multiplies bacteria and then releases them to purify the surrounding environment.

With such an artifact, as long as there are enough of them, even if it is a spore mist covering the entire earth, it may be able to be cleaned up.

"Lord Lin Chen, this, this is really an incredible invention! If it was pre-apocalyptic, this thing might have won the Nobel Peace Prize. If someone had created this thing in the first place, human civilization would not have been defeated by insects and beasts so quickly! ”

Hearing Lao Zhao's bitter words, Lin Chen nodded, feeling the same way.

However, Lao Zhao also understood that before the end of the world, there must be no such bacteria in nature. It took decades of natural selection to emerge as a special bacterium capable of swallowing spore toxins. This is the way of evolution in nature, but it is a pity that human civilization has weakened too quickly and has not survived until the emergence of this special bacterium.

Seeing Lao Zhao's embarrassed look, Lin Chen said, "Go and give it a try and see if our common achievements can reverse the fate of mankind!" ”

"The darkest dawn is about to pass, and a new era will be born in our hands!"

Hearing Lin Chen's encouragement, Lao Zhao immediately recovered his emotions, and at the same time, his trust in Lin Chen was raised by another level.

This former biologist has come to believe that the young man in front of him can really lead humanity to rise again.

A new era begins today.