Doing things seriously, being serious and almost extreme, is one of Ruan Zun's great characteristics.

This was true when I was studying in my previous life, and it was the same when I was cultivating in this world. When he practiced the Six Styles of Devouring Souls, he was in retreat and ascetic, but he was only dedicated to cultivation, and his heart was not distracted, so that when he went out, when others saw his appearance, they thought they had seen a ghost.

After carefully considering and revising Ling Zhen's design drawing, confirming that he had reached the level he wanted, and naming the thing depicted on this drawing as the Forgotten Worry Flower, he fell asleep with peace of mind, and at this time, the night was already deep.

The next day, he moved again. There is no way, making iron by himself has already seriously affected the work of the Fengwen Branch, and now he is preparing to make the kind of thistle terrestris that he named the anxiety relief flower, which is really not suitable in a crowded place in the city. Fortunately, he still had some spare money in his hand, so he bought a farmhouse on the outskirts of the city, found a mason to strengthen it overnight, and moved the blacksmith shop. Then it took two more days to dig an underground warehouse.

This move is really laborious. Murong Qianqian was also worried that because it was outside the city, it might not be safe. But in the past few years, Ruan Zun has walked a lot between life and death, and he is not afraid of things. Except for taking Luan Tingyu to guard himself and do chores, no one brought him.

Murong Qianqian couldn't, so she had to go back and beg Murong Yanda. The latter was begged, so he had to send a group of soldiers to set up camp near the courtyard three miles away in the name of preventing bandits, and sent two teams of banner spirits from the Demon Suppression Temple, also in the name of guarding against bandits, to patrol around.

For the kindness of the Murong family, Ruan Zun can only accept it.

instructed Luan Tingyu to be in charge of his own diet, deliver food to himself, and then take care of the door, and then the information obtained by the Lingwen branch every day was also conveyed by him. Others, except for Murong Qianqian, no one else is allowed to enter. If someone comes to the door to provoke or challenge, they all agree on a period of one month, and fight again after a month.

Himself, he devoted himself to making the painstakingly designed killer grenade to forget the worries.

Some of the gunpowder ingredients entrusted to Luan Tingyu to buy, sulfur, black charcoal, saltpeter, etc., have been put in place, mash them, and mix them together in the appropriate proportions, which can form the black powder that is now widely used in the military of the Song Kingdom. But both Ruan Zun and Ling Zhen knew that the damage of such black powder to the spirit warrior was almost zero.

He first tried to make a melon grenade similar to his previous life out of ordinary iron sheets, which he now called the Forget-Worry Flower. There is a safety tab, but no firing mechanism, just an activation circle carved into it. After pulling off the pull ring, the spiritual power is used, and the formation is activated to produce flame heat, and after a delay of about three seconds, the heat reaches the built-in temperature, and an explosion can be generated. After the explosion, the shattered iron sheets, built-in bullets, and iron sheets scattered in all directions, causing a wide range of damage. The principle is feasible, but unfortunately the power is not enough to kill the spirit.

Then put this black powder into a piece of forgetfulness made of fine iron sheets. The black powder exploded inside the fine iron sheet, and the fine iron sheet did not even crack the skin. Obviously, the power is not good.

Therefore, the most important thing that Ruan Zun is doing now is to refine and sublimate gunpowder into explosives.

Black powder is one of the four great inventions of China, but the origin of modern TNT explosives, which is far more powerful than it, comes from the great Nobel. The main basic ingredients of explosives in the previous life were nitroglycerin and dried diatomaceous earth. If this highly refined and improved gunpowder were to be used as the source of the explosion of the Forgetfulness Flower, the power of the fine iron fragments and projectiles would be far more than ten times greater than that of black powder, and the power and speed would be enough to make the spirits unable to react.

The explosive commonly used in military grenades in the last generation was TNT.

The original nitroglycerin is derived from the treatment of glycerin with nitric acid and sulfuric acid, and then after a certain process of treatment, it becomes a solid powder. It is also the primary means used by tomb robbers to blast open solid tombs. It was difficult to buy them directly from the market, so the tomb robbers made their own. Ruan Zun also learned some of the production process from an old tomb robber who was proficient in this way. The principle is simple, but the production process and proportions must be rigorous and error-free.

He made a long list of all the things he needed to refine nitroglycerin, and added a lot of things he didn't need, indicating various dosages, before handing them over to Luan Tingyu for purchase. The purpose of this is not to let the formula get around. If this recipe is obtained by someone with ulterior motives for some reason, and because of the dozens of extra substances on it, it is difficult to determine the true ingredients in the Forgetfulness Flower.

Luan Tingyu didn't talk much, Ruan Zun asked him to do whatever he wanted. As a native of Honzhou, he was very familiar with the ground in Qingzhou, hired a carriage to go out, and in half a day, he purchased all the things that Ruan Zun needed. Qingzhou is an important town in Shandong, rich in products, there are many merchants from the south to the north, and the things that Ruan Zun needs are not unpopular things, so they can be purchased quickly.

"Lord Luan. Ruan Zun Zhengse said to him, "In the next few days, I will make a secret weapon in the basement with all my might." During the production process, no one should be disturbed. Prepare me dry food and water for five days. And no matter what's going on underground, whether it's an explosion or anything, you're not allowed to come in. ”

"The subordinates obeyed. Luan Tingyu said.

"If someone snoops around this courtyard, you and I will go to Qingzhou Mansion, and I don't know anything else. If there are any more people who don't know what to do, notify the nearby Demon Suppression Hall and the garrison as soon as possible. ”

"Yes. Luan Tingyu said, but still asked, "Listening to the tone of the young master, it is very dangerous to make this kind of secret weapon, if the young master is in danger, is it not allowed for his subordinates to go down to save him?"

"Absolutely not!" Ruan Zun said firmly, "Lord Luan, you have to believe that I will not joke with my life! After all, there is a delicate eldest sister waiting for me to marry in the palace, how can I be willing to go to the west?"

"The subordinate understood. Let's do it. ”

In the next few days, Ruan Zun entered the basement with a large amount of purchased things, food and water, locked the iron door from the inside, and only concentrated on extracting the explosives ingredients.

On the ground, after Luan Tingyu did everything he should do, he stuck to the courtyard day or night, and did not dare to slack off in the slightest. The earth dog Bean is also kept in the yard, and with its high alertness and keen sense of smell, it helps him to patrol.

Murong Qianqian had been instructed by Ruan Zun, so she didn't come back these days. Zhen Sanshan Huang Xin came again and threatened to compete with Ruan Zun in the spirit soldier and spiritual skills, but Luan Tingyu only told him that Ruan Zun was not there when he went out a few days ago. Huang Xin didn't believe it, because he already felt the sound of beating in the courtyard, and there was a strange feeling for the young man.

However, since Ruan Zun arrived in Qingzhou Mansion, he has never avoided a war, and he declared that he was not there at this time, maybe there was a real reason. Huang Xin is not a person who is difficult for a strong man, and the last time he fought with Ruan Zun, he even had a sense of sympathy, so when he heard this, he just went back home.

There are also a few people who come to the door. However, most of these people are self-conscious, and they were directly sent back by Luan Tingyu. Now, his strength has also returned to the level of a high-level spiritual warrior.

However, there are still quite a few people who don't open their eyes. On this day, a team of high-spirited people came on the road, looking at the costumes are all officers and soldiers, and there is a military general immediately, whose rank is not low, and the nearby Demon Suppression Hall and the guards of the government did not dare to stop them.

The military general rode his horse to the outside of the courtyard and shouted inside: "What is the son of Ruan Zun to come out for me! Your grandfather, Liu Jian, the guard of Qingfeng Village, specially came to break your dog's legs! The eldest sister of the Murong family, it is also a slut like you who can fight the will!" (To be continued. )