Maybe someone can be like Yin Hao, who can defeat the dark energy with bright energy or even turn into strength, but it is definitely not his opponent after breaking through the dark energy.

Not only in terms of strength, but also in terms of physical fitness.

And the same is true of Dan Jin, after breaking through Dan Jin, it is the realm of the marrow like frost, and the process of blood exchange needs to be completed to be a complete Dan Jin boxer.

And if you want to complete the blood exchange, you need a lot of resources and time to pile up.

This time is more or less, but it is generally about three months, so it is also called the foundation of the boxers for the hundred days.

Because in their opinion, the realm of Bao Dan is the same as the foundation of the previous cultivation in terms of boxing.

It is the starting point for those who practice boxing to fade away from the mortal body and move towards the extraordinary.

After chatting with Yuan Zhen Lao Dao for a while, Yin Hao took the resources sent by a senior brother and entered the retreat.

There is no danger in the process of exchange blood, but it requires a lot of mental attention and is a time-consuming and boring job.

But Yin Hao simply has the secret technique of "hanging up".

For the subconscious, there is nothing boring.

Moreover, the subconscious mind is the aggregation of human instincts, which is very close to the source.

In a sense, it is a manifestation of the shortcut, so many actions under the subconscious contain many things that he cannot understand.

And these things that he can't understand exist in the bottom of his heart as a kind of background, and they will be digested and absorbed after he reaches a certain realm.

When he held Dan before, many of the complicated mental aspects in the spiritual world were manifested by subconscious comprehension.

Of course, Yin Hao, who was still a rookie in the cultivation world, naturally didn't know all this, and after taking the resources sent by the senior brother, he hurriedly said goodbye to the old Taoist and came to the Maoshan retreat room for retreat.

After Yin Hao handed over the process of blood exchange to the subconscious to deal with, he immersed himself in the enlightenment of the Taoist Sutra of Medicine.

Time passed in an orderly manner.

Three years later, Yin Hao walked out of the retreat room.

Yin Hao, who came out of the customs, looked very strong, although he did not have the slightest characteristics of practicing boxing, but he made people know that it was not easy to mess with at a glance.

Originally, he had restrained his spirit a little, and after he achieved the Baodan, he had already cultivated to the realm of returning to the basics.

But at this time, because he had just changed his blood, his physical body had improved too much, and his essence was difficult to reinforce, which revealed his extraordinaryness.

And if you look closely, you can even find that there seems to be a strange luster circulating under his whole skin, and only when he is completely used to it can he converge again.

"After three months of retreat, it's time to go out and walk around."

Yin Hao, who walked out of the secret room, stretched his waist with a smile on his face.

In the past three months, with the support of a large number of resources in Maoshan, he not only achieved the state of "marrow like frost, blood like mercury", but also practiced the two great horizontal kung fu of the Tiger Roar Golden Bell Jar and the Dragon Yin Iron Cloth Shirt, and cultivated it to a great achievement.

With his state at this time, the revolver that is still mainstream in this era can only scratch his skin a little at most, if he encounters the previous encounter with Cheng Tinghua in the capital, he is sure to solve all the Eight-Nation Alliance forces in the capital alone.

"There are a lot of weird things abroad, maybe you can go abroad to have fun."

Yin Hao's mind floated, he raised his feet and walked towards his residence, and when he stepped out, the skeletal muscles of his body began to tremble.

With each step, the aura of fierceness that permeated his body weakened, and by the time he returned to his residence, his aura had gradually converged.

Even the faint streamer under his skin disappeared, turning into his original ordinary state again.

With the realm of Bao Dan, it is not difficult to adapt to this sudden increase in strength.

Before he stepped into the door, Yuan Zhen Lao Dao, who was standing in front of the scripture building on the cliff not far away, pointed at Yin Hao and complained: "You stinky boy is finally out of the customs, I was originally going to wait for you in the secret room of your retreat as before, but I didn't expect you to return to the residence without saying a word." ”

These days, in order to complete what his senior brother told him, he has not been waiting in the secret room of Yin Hao's retreat in the past few days.

In the past few days, it can be said that he has been going every day, waiting every day, and not waiting every day, which has made him accumulate a stomach full of resentment.

I thought I would have to wait a few days, but I didn't expect Yin Hao to be out of the customs today.

"Uncle Shi, what's the matter?"

Hearing the resentment in the words of the old man of Yuanzhen, Yin Hao Zhiqu did not talk to the old man of Yuanzhen, but took the initiative to introduce the topic to the topic.

"The matter of purchasing property you mentioned earlier, senior brother asked me to ask you what kind of idea you have."

Hearing Yin Hao's inquiry, Yuan Zhen Lao Dao calmed down a little and said to Yin Hao helplessly.

To be honest, they really don't understand this Western industry, so they can only hand it over to a special person.

But some of the things that Yin Hao took out were too important, and even if they were handed over to a special person, it would be difficult to deal with them without handling.

Yin Hao knew what Yuan Zhen Lao Dao was talking about, and he also knew what Qingyang Zhenren was worried about.

Penicillin!

It is important to know that penicillin is mainly antibacterial and anti-inflammatory, enhances resistance, and has a stronger effect and cheaper production cost than sulfonamides, which have similar efficacy.

According to the information he searched, this penicillin was only discovered in 1943, and then replaced the position of sulfonamide in the antibacterial and anti-inflammatory world.

In this era of war, drugs such as penicillin belong to strategic control materials, and their significance and benefits can be imagined.

And among the things that Yin Hao took out, there was a method of penicillin extraction and use, which was one of the complete scientific knowledge he had searched for by consuming the Qi of Robbery.

If it is taken out easily, with the current status of the Qing court in the world, I am afraid that as soon as it is discovered, the great powers will be like a shark that asks for a fishy smell, and Maoshan will not be able to resist at all.

Yin Hao thought for a while, and said: "Then put it first, find a top-secret place to set up the shelf first, and then take it out when the time comes!" ”

"Now Maoshan is still a little safer, take the road of handmade high-end artworks, and then make alkali."

"Soda? I've been there, good fellow, it smells terrible. ”

Hearing Yin Hao, Yuan Zhen Lao Dao immediately said with a disgusting expression.

Yin Hao glanced at Yuan Zhen Lao Dao with a smile, and said: "Uncle Shi, don't underestimate this alkali production, you must know that my combined alkali production method can not only produce soda ash, but also produce chemical fertilizer!" And the investment is small, the profit is large, and there is no need for manpower! ”

These alkali plants do not use electricity, they can use fire, and the raw materials are cheap, salt and lime, plus ammonia.

All you need to do is buy a piece of land, build a factory, and hire three or four workers.

Of course, he also knew that the smell of Yuan Zhen Lao Dao was unpleasant, after all, there was such a thing as ammonia in it.