Seven days later.

Yu Lie stayed in his rented house, and in the stone house stood a bronze tripod as tall as others, dark all over, and the raging charcoal fire was constantly licking Da Ding's body.

Yu Lie walked around the copper tripod with a bare body and a serious face, constantly checking the heat of the copper tripod.

He was refining the pill, but the pill he was refining was neither a blood strengthening pill nor a beast descending pill, but a special pill that Yu Lie retrieved from the miscellaneous shop after meeting with Lao Yutou that day.

On the table far away from the copper tripod, a golden-red Dan book was being opened, and on each page of it was the words "Lead and Mercury Flying Fire Arcana Integration"!

In the pages of the book, the words lead and mercury, saltpeter, sulfur, refined charcoal, sugar, etc., appear repeatedly, and there are also strange-shaped utensils, imprinted on the pages.

This book is the Danshu that Yu Lie was impressed by when he saw it in the miscellaneous shop, and it is a Dan recipe for making all kinds of gunpowder!

Gunpowder is a familiar thing to the Taoist of alchemy, and it is an old craft.

In particular, the recipe of the lowest black powder has long been streamlined by the Taoists to the point that it can no longer be streamlined.

When Yu Lie first started learning the Dan Method, he also thought about starting with refining gunpowder, but gunpowder was classified as the school of Jinshi Dan Method, and it was very dangerous.

As a result, what Yu Lie didn't expect was that he saw the book "Lead and Mercury Flying Fire Arcana Collection" in the grocery store.

This book is very famous for the people of Dan Dao!

It includes the "Secret of the Taishang Holy Ancestor Jindan" by the alchemist Qing Xuzi, in which the "Fu Huo Alum Method" records the formula of early gunpowder, which is the earliest written record of gunpowder in the mountain and sea world.

The book discloses in detail the preparation methods of various gunpowders, and also gives the most suitable firearms production drawings for the corresponding gunpowder, which has not been easier for thousands of years.

Even if a mortal obtains this book, as long as he is not afraid of death, knows the words, and has sufficient materials, he may be able to make a gunpowder firearm that is enough to kill the copper tendons and iron bones, as well as to seriously injure the eight-rank Taoist disciples.

It is precisely because of this that after causing a lot of tragedies, although "Lead and Mercury Flying Fire Arcana Collection" is a classic work of Dan Dao, but the content of its entire book, mortals and Taoist children are not qualified to touch, and only eight-grade Taoist disciples are eligible to buy and read.

Fortunately, the rules are the rules, the reality is the reality, after all, "Lead and Mercury Flying Fire Arcana Collection" was a classic work that was popular in the world back then, and the Taoist Court only restricted this book in regular bookstores and official shops, and it did not reach the level of killing if you hide this book.

Its specific content is still circulated in the hands of some Taoist children and mortals.

The book in Yu Lie's hand was received by the two of them from a Taoist boy. And they are not selling it as a Danfang, but buying it as an antique.

Because this "Lead and Mercury Flying Fire Arcana Collection" is an engraved version of the early years of the Black Emperor, although there is nothing different, it is not a cherished version.

But it's also an ancient book of about 3,000 years, and it can be sold for tens of thousands of dollars, and if you meet someone you like, it is possible to sell it for 100,000 or 100,000 yuan.

After Yu Lie fell in love with this book, Lao Yu pondered for a while, thinking that Yu Lie was a person in the Danfang, and most likely wanted to refine gunpowder to protect himself.

The other party didn't show any reluctance, and generously asked Yu Lie to take the ancient book home directly, and remember to return it when the time comes.

Lao Yutou just reminded Yu Lie: "Gunpowder is dangerous, black powder is fine, but if you secretly refine other gunpowder according to this method, three out of ten will be blown up, and two will be killed on the spot." Brother Yu, although you have cultivated into copper and iron bones, you are not afraid of explosions, but you have to take it easy! ”

After reminding, Lao Yutou added: "Besides, the most important thing in refining gunpowder is not the formula and craftsmanship, but the material. Basically, the purer the material, the more powerful it will be, but now the official is very strict, and it can't be bought at all. Although there are some sold in the black street, the price is really a trick, so it is better to prepare more rune paper......"

The other party chattered a lot, which meant that Yu Lie should not spend too much effort on "Lead and Mercury Flying Fire Arcana Integration", and then ponder slowly when he has time, so as not to delay other preparations.

Yu Lie responded at the time, saying that he was just thinking about trying it first, and promised that he would return the book in half a month and would not delay for too long.

Seeing that Yu Lie was reasonable, Lao Yutou didn't say anything more.

The other party didn't seem to want to dampen Yu Lie's enthusiasm for alchemy, and decided to sell the saltpeter, refined charcoal and other raw materials in the miscellaneous shop directly at cost price, so that Yu Lie could take as much as he needed.

If it is not enough, when the time comes, when the middle-aged man comes back, let him lead Yu Lie directly to the instrument courtyard to buy, anyway, the instrument courtyard has been opening mountains and bombing mines all year round, and the consumption of such things is really large, and the Taoist children of the instrument courtyard are still worried about the lack of trusted buyers to send them money.

When Yu Lie learned this, his face did not fluctuate, but his heart was happy.

The step of purifying raw materials costs a lot of money for other Taoists, and if it is prepared by private individuals, its cost may exceed the price of finished products in the world.

But Yu Lie had a bronze wine glass in his hand, and he only needed to think about it a little to make a material that was difficult for the Taoist disciples to purify!

This "Lead and Mercury Flying Fire Arcana Integration" fell into his hands, which can be said to have voted for the master, and it can be carried forward quickly!

And this day.

Yu Lie retreated in the stone house, trying to refine the orange powder of the "Tribulus Thorn Fireball" in "Lead and Mercury Flying Fire Arcana Collection".

This smell of gunpowder is contained in the tribulus terrestris sphere, and if it is thrown, it will explode, and dozens or hundreds of spikes will fly out, and within a room, it can shock and kill wild boars and bears.

In the stone room, the flames under the copper tripod were raging, and the lid suddenly trembled slightly.

Yu Lie saw this movement, his eyelids trembled, and he subconsciously wanted to jump away.

He has been refining gunpowder for several days, and he has been bombed three times a day, and as soon as he sees the lid moved, he has to hide his face and tense his body.

This is also the reason why he moved back to the small courtyard from the poison mouth. The other people in the poisonous mouth still have to work, and if they really collapse the quiet room, or even set fire to the medicinal materials in the mouth, the loss will be too great.

It is still cheaper to rent a stone house, and there is also a yard, which is also convenient for Yu Lie to run.

The only thing that suffers is the benefactors of the landlady next door a few days ago.

Because Yu Lie is not skilled, he rings several times a day, and occasionally moves so loud that the next door thinks it is an earthquake, and the timid benefactor will have weak legs on the spot, and will be so scared that he will roll out with his bare buttocks, and even forget to pay the money.

Fortunately, Yu Lie had experience in refining strong blood pills, although the Danfang was different, but it was also quite desirable, and his progress was rapid, and he did not let the landlady be completely unable to do business, nor did he let himself be kicked out.

"Huh!"

Yu Lie tensed his body and found that the lid of the copper tripod did not rise to the sky.

He made up his mind, then walked over, knocked on the nine positions of the tripod body with a special technique, and then lifted the tripod body.

Yu Lie looked into the copper tripod, and in a burst of smoked saltpeter and sulfur smoke, he saw that the body of the tripod was yellow and clear, slightly orange-colored.

His eyes were delighted, and then he stretched out his fingers, scraped some powder with his fingernails in the copper tripod, sniffed first and then licked it, and his face suddenly showed a look of great joy:

"Orange gunpowder, it's done!"

Yu Lie excitedly wanted to pat Ding's body to celebrate, but as soon as his hand fell on Ding's body, he trembled, stopped, and showed a stupid look.

Gunpowder, especially above black powder, don't dare to slap at will, it's asking for hardship!

Immediately, Yu Lie removed the copper tripod, then took the ox bone knife and the clay pot, scraped off all the orange gunpowder in the copper tripod, and filled most of the clay pots.

After the completion, Yu Lie looked at the clay pot and was overjoyed.

He said secretly: "I know how to make alchemy, it's really amazing!" This clay pot alone can make one or twenty tribulus thorn fireballs, to say the least. ”

A tribulus terrestris stinging fireball, killing pigs, killing bears, tigers and elephants are all idle, and because of the restrictions, its price is 50 to 100 yuan. Most of Yu Lie's jars are already nearly a thousand yuan, but the cost is less than a hundred, and when he is skilled, the cost can be lower.

And the materials used in the rest of the columns are all purified by wine glasses, and their power is more fierce and fierce than the ordinary tribulus terrestris fireballs on the market!

After putting away the clay pot, Yu Lie did not extinguish the charcoal fire, but walked to the table again and flipped through the "Lead and Mercury Flying Fire Arcana Collection".

His eyes flickered, and his face was excited.

The tribulus terrestris stinging fireball is just an inferior firearm on top of firecrackers, fireworks and other objects in "Lead and Mercury Flying Fire Arcana Integration".

It is equivalent to it, but the use is not the same, there is also a "flying sand and white snow fireball", which can be attached to the object and burn violently after smashing it, the sand can not be extinguished, the blisters are not extinguished, and the Taoist boy under the copper tendon and iron bone can only scrape the flesh to extinguish the fire, which is very vicious!

There are also "Solo Flying Arrows", "Rainstorm Pear Arrows", "Miasma Poisonous Smoke Arrows" and so on.

As for the more advanced ones, Yu Lie aimed at a firearm called the "Divine Fire Flying Crow".

The appearance of this vessel is like a crow, made of tin iron, filled with dense gunpowder, and two "fire" cartridges are installed on both sides of the tin iron flying crow, and the cartridges are connected with the gunpowder medicine wire in the crow's body.

Hold this thing, and you will hit it.

When fighting, the Taoist blows the "fire", the flying crow can shoot to 300 steps away, after landing like thunder, the middle Taoist child is killed immediately, the upper Taoist child suffers a few more, and the immortal is also disabled.

On top of the "Divine Fire Flying Crow", there is also a firearm called "Fire Dragon Out of the Water", which can fly farther, and can also be pounced in the water.

This thing is the firearm in "Lead and Mercury Flying Fire Arcana Collection" that is enough to seriously injure the Eight Rank Daoists, and even kill them. Converted to the monster, it is enough to kill the spirit of the seventh grade, which is already on par with the Qiwu paper man rune paper that Yu Lie used at the beginning!

It's a pity that its production is also more difficult, more dangerous, and the control of medicinal materials is more strict, making it difficult for ordinary people to get it.

However, Yu Lie pondered, gritted his teeth, and said secretly:

"Such a killer! Even if it's hard to get, you have to get two or three sticks in your hand as a precaution! ”

He must have thought about where to get the ingredients.

Friendship push: "I'm immortal in the world of Liaozhai"

(End of chapter)