This time, Yang Fan also took the opportunity of being kidnapped by the Free Country to try something new.

Because he made a new discovery about the black fog.

But it was not very convenient to implement it in the Dragon Country and on that small island before. After all, it would cause a lot of noise and require a lot of experimental materials.

However, no monsters have appeared in the territory of Dragon Country, and it is not convenient to catch them in other countries. As for that small island, there are no other humans at all.

But it’s different here in the Free Country. Yang Fan doesn’t have any psychological burden when using the weirdness here.

"The facilities here are basically completed. Next, we need to produce some results to convince those people in the Free Country."

That’s right, Yang Fan is going to ask them for resources at a high price.

The first is to provide weird materials.

The environment in the Free Country is not affected by the pyramid, so there are still strange bosses.

So the target of Yang Fan’s first experiment was set on the weird boss.

But if the Free State wants to capture a strange boss alive with its current strength, it is simply impossible, and there will be a large number of casualties.

Yang Fan didn't care about casualties, but if the Free Country lost its patience, his next series of experiments would become very difficult.

So Yang Fan needed to make a large number of enchanted redstone torches.

The materials are of course brought from the Sky Island World, where redstone and wood are simply endless.

Yang Fan made dozens of sets of redstone torches and contacted Sean.

"Sean, I have made new progress in my research."

Sean had told Yang Fan before that as long as there was any progress in the schedule, he should contact him as soon as possible so that he could report to the president.

"Okay, Mr. Yang Fan, I'll be there right away."

At this time, Sean's attitude towards Yang Fan was even more respectful and humble. There were also a large number of agents monitoring Yang Fan nearby. When they felt that the nearby black fog had all dissipated after a while after Yang Fan entered, they immediately had no doubts about Yang Fan's ability.

And this matter was also reported to the President of the Free Country.

The President of the Free Country originally wanted Yang Fan to contribute this technology so that he could get rid of the dark room in his office and home as soon as possible.

But when Yang Fan showed the A-type launch device to the President of the Free Country, he immediately gave up the idea.

In order to conceal the existence of the sacred pyramid, Yang Fan opened up a large space in the air-raid shelter.

In this space, he used some of the materials here and his own quartz stone powder to build an extremely huge and strange object.

Its height is more than 100 meters and its diameter reaches 200 meters.

According to Yang Fan's explanation, such a device needs to be constantly replenished with materials in order to maintain itself.

This brings us to what Yang Fan wants to do next.

In addition to promoting redstone torches, he also plans to promote furnaces.

Mainly, after adding sacred attributes to coal, burning coal in a furnace can also dispel the black fog.

And the duration of this effect is quite good. One piece of coal is enough to sustain a furnace for a day.

Such a furnace that burns coated coal can prevent the surrounding 20 meters from being invaded by black fog.

This is what Yang Fan wanted. If the furnace did not have the coated coal he provided, it would not be able to resist the black object, and the furnace could not permanently generate the power to resist the black object.

Then you need to buy a lot of coal from him or he can provide the pot requirements.

As for the coated redstone, it can only affect the area within two meters and can only be worn on the body.

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