(Thanks: Moshaocong, Xia Xia Liangxing, and Mudi Wolf Smoke's three brothers.) ）

In Chengdu, the first heavy snowfall at the end of November was long overdue. After the snow, Chengdu is full of silver, and it is beautiful. In this beautiful scenery, the 100-day wine of Miss Wang Jiedu Mansion is lively and lively in the Sanhua Building on the bank of Sanhua Creek in the south of the city.

Wang Jiedu made the same generous gesture as usual, and set up more than 100 flowing water seats as when the eldest lady was born. Officials and celebrities from all provinces in Jiannan Province came to congratulate, Li Mi, who was far away in Yaozhou, also rushed to Chengdu to drink, and even Luo Feng, the lord of Nanzhao State, also sent someone to send a set of valuable full-body silver ornaments as a congratulatory gift. It's not that these people attach great importance to the 100th birthday of the eldest lady of Wang Jiedu, but this is a good time to get in touch with Wang Jiedu's envoy and make friends.

Wang Jiedu envoy is also very cool, but all the gifts sent will be doubled back as gifts. This move also blocked the fact that many people secretly slandered Wang Jiedu and used his daughter's birthday to collect money.

The banquet was set up for three days and three nights, and it was very lively. The troupe of Chengdu City Liyuan was also hired by the Jiedu Embassy and sang for three days and three nights in the big square in front of the Jiedu Mansion. Even in the cold winter and heavy snow, the people are bustling in the square to listen to the play. Listening to the Liyuan team singing opera is the patent of the dignitaries, how can the people have such enjoyment, but also through the light of the eldest lady of the family to see the world.

On the third night of the singing, the script was coming to an end, and it was the climax that attracted attention. The people were waiting intently for the final ending of the play. In the quiet of the night, a sudden explosion resounded through the night sky. The people watching the play in the square were frightened, and the explosion was so loud that the earth trembled, and the snow fell from the trees around the square.

"What's going on? Where's the sound? The people asked each other, and even the finale of the full moon on the stage was abandoned.

"I don't know, it seems to be a sound coming from the northwest of the city. It scared off Lao Tzu's soul, turtle son's. ”

"Look, look, there's a fire in the northwest of the city, and lo and behold, the smoke is billowing in the dust. Is it out of the water? Someone shouted pointing to the northwestern sky.

Immediately, all the people turned their faces like sunflowers to the northwestern sky, but they saw a red light in the northwestern sky. Smoke rose in the firelight, apparently a fire.

"Turtle son, isn't there a flint falling from the sky? One year the flint fell from the sky on the mountain in the west, and the whole mountain burst into flames. Some people immediately remembered the meteorite incident that fell from the sky in the west of Chengdu more than ten years ago.

When the people were talking and speculating, several streets in the northwest of Chengdu City had been quickly blocked by Jiannan soldiers and horses. Wang Yuan had already led his personal guard battalion to the northwest corner of the city. He received a report that a large explosion had occurred in a Dan furnace in the northwest corner, igniting more than a dozen houses in the surrounding area and injuring people.

When Wang Yuan rode his horse into the large courtyard of refining medicine, the scene in front of him was unbearable. A tall Dan furnace near the south side was gone, leaving only a thick granite base. The surrounding trees and houses were burning fiercely from the flames. Houses and trees were staggered and shattered by the blast of the explosion. The ground was littered with fragments of the Dan furnace, and white smoke was rising from the snow.

"Quickly put out the fire and save people, and see how the monks are doing? How many people were killed or wounded? Wang Yuan shouted loudly.

The soldiers immediately extinguished the fire, saved people, and found seven or eight corpses in the mess, and it was no longer possible to tell who was who.

Soon after, the soldiers found a man alive under the rubble rafters, who was no longer recognizable, covered in blood, and whose arm had been broken, revealing Sensen's bones. The sharp-eyed soldier recognized this person as Zhang Zhengyi.

When Wang Yuan heard the news, he hurriedly ordered someone to stop the bleeding and bandage Zhang Zhengyi, poured a decoction, and gave timely rescue. As soon as he opened his eyes, he suddenly sat up from the ground where he was lying, and let out a loud laugh from his mouth, which surprised the people around him.

"It worked, hahaha, it worked, it finally worked." Zhang Zhengyi grinned, waving his broken left arm, ignoring the pain.

Wang Yuan looked at him blankly and said, "Zhang Zhenren, what succeeded?" ”

Zhang Zhengyi also recognized Wang Yuan, grabbed Wang Yuan's arm and shouted: "Wang Jiedu, I finally lived up to the trust, and the ambush fire side was successfully refined." You see, the entire Dan furnace has exploded, are you still satisfied with the power? ”

Wang Yuan smiled bitterly: "Everything here turned out to be done by you. ”

Zhang Zhengyi smiled and said, "Who else is it not me?" I finally found the recipe, but the amount was too large and I didn't have time to control it, so much so that it exploded the Dan furnace. I already know the recipe, though. Bring me pen and paper, I'm going to write it to you. ”

Wang Yuan was also very happy in his heart, but seeing the blood oozing from Zhang Zhengyi's broken arm, it was obvious that Zhang Zhengyi's toss had aggravated the injury, and he hurriedly said: "Don't be busy first, it's better to heal first." You have a broken arm, you know? ”

Zhang Zhengyi said nonchalantly: "If it's broken, it's broken, so what's there?" The key is that the fire side has finally been practiced. If I don't write it down now, what if I die? The only person other than me who knows the prescription is Jiang Zhenren, but I have seen him blown to pieces with my own eyes, and now I am the only one who knows it. ”

Wang Yuan was right to think about it, so he ordered someone to bring a pen and paper, and Zhang Zheng shook his hand and wrote down the prescription crookedly, and finally felt relieved. Wang Yuan hurriedly ordered someone to carry him away for treatment and ordered someone to clean up the scene. Fortunately, the sulfur saltpeter and charcoal in the refining place are stored separately, which is also required by Wang Yuan, for fear of accidents. Therefore, this accident did not cause a chain reaction, but only destroyed the southwest edge of the entire alchemy. Regardless of the damage caused by this accident, Wang Yuan was also very satisfied with the power of the explosion. The explosion spread within a radius of dozens of paces, and although it was not the destruction of the explosion itself, the shock wave and the fire and collapse caused by the explosion were also part of the power.

Wang Yuan, who got the ambush party, was actually not sure if this thing could be used, and the explosion was obviously because it was not controlled. Uncontrolled gunpowder may not be available yet, but after all, this is a great step forward. The follow-up will need to be consulted by Zhang Zhengyi, who may be able to explain why such an uncontrolled explosion occurred.

A few days later, Zhang Zhengyi's injuries were stabilized under medical treatment, but his left arm could not be saved, because it was broken too completely, and Lang Zhong had to suggest that it be cut off. As for the multiple injuries on his body, there is nothing to worry about. After he was already conscious and able to eat, Wang Yuan went to visit him personally.

Zhang Zhengyi, who was on the sickbed, was still excited about the explosion and explained the cause of the explosion. It turned out that this explosion was an accident. Originally, after the mixing of drugs, it was necessary to take out the furnace and cool it, and then mix the ignition test. But this time, the boy of the Dan furnace forgot to take out the medicine in the furnace when it was decomposed into saltpeter with gem nitrate. As a result, a large mixture of saltpeter and gemstone nitrate was directly mixed in the subsequent sulfur and charcoal mixing. By the time Zhang Zhengyi found out, it was already too late. The high temperature of the furnace fire directly led to this catastrophic explosion, because the amount of medicine refined alone was relatively large, and the power of this explosion was also earth-shattering.

But because of this, Zhang Zhengyi understood that the problem was saltpeter. The mixture of saltpeter and gem nitrate is what triggers the violent explosion along with the sulphur charcoal. The reason is unknown. But it turned out that the ratio of pure saltpeter and sulfur charcoal mixture produced an explosion with too little power. Wang Yuan didn't understand why this was the result, maybe the quality of the medicines in these years was not pure, and in the salt lake, the big gem nitrate produced some kind of catalyst in the process of refining saltpeter, so that these impure drugs had a violent reaction under the violent catalytic action. In short, Wang Yuan didn't want to delve into these things, as long as it worked, he could do anything.

In order to verify this truth, Zhang Zhengyi instructed a ratio on the sickbed, pouring a bamboo tube with a mixture of gem nitrate, saltpeter and sulfur charcoal. In the yard, he lit it with an oil-soaked rope, and after a long time, there was a loud bang, and the bamboo pieces flew out, and after the choking smoke had passed, he went to inspect again, and a mud puddle of feet in the ground exploded.

Wang Yuan was overjoyed, the gunpowder he dreamed of had finally been practiced, and it seemed that it could be directly applied with a little adjustment. Wang Yuan didn't think about what kind of tight weapons could be made into this gunpowder for the time being, Wang Yuan only wanted to be able to make grenades thrown with Shenwu cannons. Imagine what it would be like for a ball filled with gunpowder to explode in an enemy army or city. Not to mention the addition of arsenic to the sphere. Frost, broken iron, small iron balls, etc.

The only problem is the cost. Whether you have the financial resources to support the cost of these gunpowders is the big question. But small-scale equipment should not be a problem.

This explosion shocked not only the people of Chengdu, but also opened a new beginning. A kind of gunpowder that can be used in war, at the end of the sixth year of Datang Tianbao, it revealed its true face. It's hard to imagine what kind of changes this will bring to this era. Whether this is a divine weapon or a flood beast, no one can tell.

Wang Yuan himself could not estimate the significance of this matter, but he knew that even if he opened Pandora's box, it would only be too early, even if he didn't do it, with the development of history, this devil would still be released from the world. Since the devil will be born sooner or later, why don't you take advantage of it sooner? What's more, I need it to deal with the coming chaos in the world.