Since all kinds of metal minerals are mined from the soil, there is a saying that the earth is born of gold in the Five Elements Shengke Theory. So there was an assumption at www.biquge.info time that minerals would change over time in the soil. For example, it is believed that orpiment turns into male yellow after a thousand years, and realgar turns into gold after a thousand years. Cinnabar turns green after 200 years, lead after 300 years, silver after another 200 years, and finally gold after another 200 years. Can this change be accelerated? At this time, there was the idea of seizing the heaven and the earth, trying to make "a thousand years of qi, one day, the treasure of the mountains, seven days". So he put all kinds of drugs in the ding, closed it and heated and smelted, thinking that it could refine valuable gold and silver, so that alchemy sprouted at the end of the Warring States period. In the Qin Emperor and Han Wu period, thanks to the support of the supreme ruler, alchemy was greatly developed, and at this time, it was not only necessary to make precious gold and silver from lowly metals such as copper and iron, but also to cultivate the elixir for the ruler to eat immortality. Therefore, this exploration activity launched in China should be called "Jindanshu". They compare people and things, believing that gold and jade are immortal and indestructible, so it is best to put forward the essence from gold and jade to give people to eat, so there is a theory that "those who serve gold live like gold, and those who serve jade live like jade". At this time, the alchemists hoped to refine a mysterious substance called "gold liquid", which can be immortalized by eating, and can be turned into gold by combining with ordinary substances.

The first to be keen on alchemy was Liu An, the king of Huainan in the Western Han Dynasty, who summoned more than 1,000 monks in his palace to practice the golden pill and perform special functions, and later compiled "Huainan Zi", as well as "Huainan Wanbishu" and other works, but unfortunately the book "Wanbishu" is now lost.

Liu An, the king of Huainan, was later killed for rebellion, and Liu Xiang got a secretary for refining gold when he copied the home of the king of Huainan, so he went to the trial himself, but he was unsuccessful. Emperor Wu of the Han Dynasty Liu Che is Liu An's nephew, and he is also keen on the strange performances and alchemy of the monks, he summoned many people with special functions into the palace, and when the performance was successful, he was named a general, and even married the palace master, but once the scam was revealed, he was immediately pulled out and beheaded.

In the Han Dynasty, it was the period of the rise of alchemy, and although real gold was not refined, a variety of fake gold that looked like yellow silver and silver were made. Many kinds of chemical reactions were discovered, mainly those between lead, mercury, sulfur, arsenic, etc., and various alchemical instruments and methods for refining medicines were also created.

In the Eastern Han Dynasty, Wei Boyang compiled a work on alchemy, "Shen Tong Qi", which is recognized as the oldest surviving alchemy book in the world (the oldest surviving alchemical work in a foreign country is the manuscript of St. Mark, which is a manuscript from the 10th century AD). In fact, "Shen Tong Deed" is a theoretical work summarized by Wei Boyang after studying and summarizing a large number of alchemy books of his predecessors, "Six Hundred Chapters of Fire Records", he divided substances into two categories, yin and yang, and proposed that in order to produce new substances, yin and yang must be coordinated, and similar substances will not be combined together. He also pointed out that if "the medicine is not of the same species, the division of the dosage is uneven, and the discipline is lost", then it will be "flying turtles and snakes, and becoming more and more perverse", which is actually an explosion in the process of alchemy (this is the prelude to the invention of gunpowder by alchemists). ---introduction

From the moment he stepped into the Yingyanquan Mountain Range, Feng secretly thought about it, because after Feng absorbed the light purple crystal nucleus, his body underwent subtle changes, and from then on, the ordinary crystal nucleus also had a great effect on him.

The energy contained in the crystal nucleus was too huge, he didn't know about the crystal nucleus when he was in the Demon Beast Grotto Arena, but now after devouring it, he knew that the crystal nucleus was too important for martial cultivators.

Originally, the crystal nucleus of the Violent King Kong should not have belonged to him, and since Black Reef gave him the crystal nucleus at that time, he had to get a crystal nucleus back to him.

It won't be long before Black Reef is about to leave for the Flowing Cloud Sect, and he must prepare a gift for him.

After devouring the crystal nucleus, his cultivation will definitely improve greatly, and at that time, he may have the possibility of being promoted to an inner disciple in the Liuyun Sect.

Ready to prepare, Feng glanced at the black reef that was still cultivating, and jumped down......

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In the dark night, the wind jumped repeatedly, constantly shuttling, and then stopped to use the law of breath to feel the breath of the surrounding one-kilometer range.

A few seconds later, it jumped up again and slid deeper into the heart of the mountains.

The fifth-order demonic beasts in the Yingyanquan Mountain Range are like overlords, they all have their own domains, which cannot be violated, and the larger the territory, the stronger its strength.

The territory of some magical beasts is even tens of thousands of kilometers large, and all the magical beasts in this area regard it as their king and worship it.

After running for more than ten kilometers in a row, the wind still didn't find the fifth-order demonic beast, and he couldn't help but curse in his heart, ", where did they all die?" ”

A demonic beast has been cultivating for decades, hundreds of years, and only by breaking through the fifth order can the crystal nucleus be condensed by chance, and the energy contained in the crystal nucleus is even urgently needed by some cultivators in the cultivation realm, so naturally many people hunt it, so fifth-order demonic beasts are rare.

Standing on the treetops, the wind watched for a moment, the law of breath was released, feeling the demonic beasts moving around, frowning, and hesitated for a moment to move forward again.

He didn't stop all night, and he didn't know how many kilometers he had penetrated.

It wasn't until the sky was dusk that the wind stopped, looking at the stumps of the towering trees around him, the large and small huge pits, and seeing that the traces of destruction were completely new, there must have been a fierce fight here just now, Feng frowned, it must be a high-level demonic beast that can cause such a big damage, and suddenly the wind immediately used the law of breath to sense it, and it didn't take long for his face to smile, and he said lightly: "Finally found one for me." ”

Jumping off the treetops, his steps were very light, carefully advancing along the breath induction, the bone knife made of the fangs of the red flame wild boar in his hand dragged on the back side, at this time, the wind was extremely calm, and his eyes were always vigilant around.

The aura sensed in the law of breath was very powerful, and it was the first time in history that such a powerful aura was sensed, and when the wind prevailed, it was determined that it must be a high-level demonic beast in front of it.

The wind took more than half an hour for less than a kilometer, and the sky was already bright, the sun was rising, and the dew on the tips of the leaves was sliding down, and it seemed to be raining in the forest, and the dew was sliding on the cheeks, and the wind did not wipe it, and the eyes were staring ahead, and the Adam's apple was tumbling.

As soon as he stepped into this open flat land, the wind felt a strong pressure from the huge lion that seemed to be sleeping soundly in front of him.

The huge body, the fiery red eyes opened slightly, the eyeballs moved back and forth, the long yellow hair on the body was like a thick blanket, and the tail like steel and iron bones flicked gently.

If the wind had not comprehended the law of breath, it would have been exposed at this time.

Looking at the behemoth in front of him, Feng trembled inwardly, gritted his teeth, and was about to sneak up when his huge body suddenly moved, opened its huge mouth and raised its head and screamed, followed by red blood flowing from under its buttocks.

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