The new fast sword fire boy, wearing the knife at his side, Yu Xiu walked out of the secret room with a calm face, he saw that the outside world was dark and gloomy, and guessed that it was not yet dawn.

When he walked out of the stone house, Yu Xiu found that the night outside the house was really as dark as ink, and the fire on the mine was dotted, not extinguished, but much darker.

He said to himself: "It's better to rest in the stone house first, and then set off after dawn." ”

Immediately, Yu Xiu carried a knife and walked into the stone house, ready to be examined, so as not to disturb him while he was resting, and also to loot his belongings.

After walking around a few times, Yu Xiu found a lot of talisman coins, totaling sixty or seventy thousand yuan, all of which were locked in a secret cabinet and difficult for ordinary people to open.

As for the rest, they have already been stolen by the miners, family members and others who stole into the stone house. At the same time, he also found a lot of blood stains on the ground, and there was obviously a lot of fighting.

Fortunately, the most precious thing in the mine has been obtained by him, and Yu Xiu didn't care too much. But among the newly found items, there was still something that caught his eye.

Yu Xiu stood in a room, stretched out his fingers and dipped a little bright yellow powder, rubbed his fingertips a few times, put it between his nose and sniffed lightly, and a strong smell of sulfur immediately hit his nose.

"Sunlight and sulfur. He looked at the bright yellow powder in front of him, and a word popped into his head.

"I didn't expect that there was such pure sulfur in the hands of the Yin Owl Daoist. ”

This kind of sulfur is the best grade of sulfur, and it is rumored that this product is produced overseas, and it is transported by Dongying dealers across the sea, and its impurities are very few, and it has the effect of increasing the effectiveness of Cheng Dan medicine.

The people of Dongying regard their country as the country of the rising sun, so they have given this kind of sulfur a name, called "sunlight sulfur".

Yu Xiu had seen this kind of sulfur in the ghost market, and its price was more expensive than the yellow paper he bought, and it was already counted as an immortal material, not comparable to ordinary sulfur in the world.

Yu Xiu measured the amount of sulfur and found that it was not much, and the amount was just enough to hold a copper furnace, barely able to refine gunpowder three or four times.

At the same time, there are also prepared saltpeter, charcoal powder and other materials on the table, which are all materials for refining gunpowder, and there are also some strange things.

Obviously, this room was used by the Yin Owl Taoist priest to specialize in the formulation of gunpowder. Yu Xiu counted the types and amounts of medicinal materials, and was slightly happy in his heart.

If these materials are purchased with money, they will cost at least seventy or eighty thousand talismans. But the most important thing is that some of these things are rare in the market, and you have to go to a place like a ghost market to buy them. The nearby ghost market has just ended, and Yu Xiu has no way to buy it.

"It can be used to try to refine seven-grade gunpowder, white powder. He thought to himself.

However, Yu Xiu suddenly sighed softly: "The boy has left, what is the use of these things for me......

Without the help of the fire boy, these things fell into his hands, as if they were still in the hands of the Yin Owl Taoist, and the pearl was secretly cast.

Although in the past, when refining gunpowder, Yu Xiu was not lazy, but seized the time to study, and his ability to control the fire was better than day by day. But after only a dozen days of hard work, he is not a genius in alchemy, where can he learn it?

With his current skills, it is estimated that he can only refine nine-grade black powder, and whether it can be made into a furnace overnight is a question. Even if sunlight sulfur is used, at most, it can only barely refine the eight-grade gunpowder, and it will be the inferior of the eight-grade.

Slightly distracted, Yu Xiu still took a bag and put all the medicinal materials into the bag. Although the boy is not there, he still has to continue his cultivation, but in the future, he will have to refine all the gunpowder by himself.

The looting was complete, the night was still very thick, and there was still a little time before sunrise. After closing the doors and windows, Yu Xiu lay down on the ready-made bed and took a nap.

He killed and refined weapons in the middle of the night, and his body was already tired, so he could hurry up after resting, and he could seize the time to look through the newly harvested memories in the jade cicada.

However, Yu Xiu still went out of his body first, and wandered around for a while, and then fell asleep with peace of mind.

For a moment, he once again entered a bizarre dream.

There are many dreams this time, he is a middle-aged warrior who plays with knives and sticks for a while, and a young Taoist priest who asks for alchemy and medicine for a while, there are four of them.

Among them, what impressed him the most was the memory of the young Taoist priest.

The Taoist priest was born in a family of eunuchs, but he was not a descendant, but a concubine, and could not be vigorously cultivated by his family, and it was difficult to learn even the high-grade martial arts techniques.

So the Taoist priest simply worshipped the new immortal scholar in the family as a teacher and learned the immortal way, in order to get ahead......

A big dream, and the rest of the rest wakes up leisurely. When he woke up, he thought back to the dream he had just had, and his eyes showed a look of enlightenment.

Just as he dreamed, the Yin Owl Taoist was the son of the Duan family of Cangjun, because he couldn't get the high-grade martial arts practice at home, he simply worshipped the Five Ghost Taoist of the Witch Ghost Dao as a teacher and practiced immortal learning.

The reason why the Taoist priest came to the mine was mainly to obey the master's orders and painstakingly refine the blood-patterned steel, preparing it as a congratulatory gift for the birthday banquet later, and on the other hand, he also wanted to use the sulfur and other materials in the mine to refine gunpowder and accelerate his cultivation.

As for the fire boy, although the Taoist priest used the grievances of the mine slaves to cultivate, he did not raise them single-handedly, but his master Five Ghost Taoist priests first planted the relevant prohibitions on the mine, and then he tortured and tortured the mine slaves to collect the grievances and souls, so he cultivated it.

Thinking about it carefully, Yu Xiu sighed slightly in his heart. It is no wonder that the fire boy chooses to return to heaven and earth on his own after his obsession dissipates.

Because the fire boy is not born, it is artificially raised, and there are some drawbacks, similar to the earth-bound spirit, which cannot leave the mine for a long time, and needs to be nourished by the resentment in the mine every day to maintain his obsession, otherwise it will be dispersed immediately.

And when there was turmoil in the mine, the mine slaves escaped, and the Taoist priest died, the resentment of the mine had begun to subside. Once the resentment is completely gone, the fire boy will inevitably disperse.

Unless Yu Xiu can take advantage of the resentment in the mine, he will arrest the mine slaves again, torture and kill them, and use their grievances to raise ghosts, so that it is possible to maintain the fire boy.

But this method ...... I'm afraid that even if he wanted to, the fire boy wouldn't be willing.

After carefully sorting it out, Yu Xiupan sat up, closed his eyes slightly, and began to use the memories of the Yin Owl Taoist priest in the jade cicada.

After more than a dozen breaths, he opened his eyes, and his eyes flashed, revealing joy.

Yu Xiu looked at the bag in front of him and said, "The medicinal herbs are useful!"

It turned out that in the memory of the Taoist priest, he obtained the experience of the Taoist priest in refining blood pattern steel and specializing in gunpowder, especially the latter.

Refining gunpowder is the most persistent memory of the Yin Owl Taoist before he died.

In fact, the reason why the Taoist priest's master planted the fire boy in the mine was to allow the Taoist priest to get the help of the fire boy and control the fire so that it could be easier to refine the blood pattern steel.

But the Taoist priest had no other mind. He simply refined the blood-streaked steel by himself to prevaricate others, and let the fire boy refine the medicine and study the gunpowder formula for him.

Who knew that the Yin Owl Taoist was quite talented in refining medicine in the furnace, and his kung fu was correct, not only refining the blood pattern steel by himself, but also dispensing inferior gunpowder according to the residual formula.

It's just that the formula and technique of genuine gunpowder are too complicated, and even the most inferior nine-grade gunpowder will not succeed overnight.

Yu Xiu reviewed the process of the Yin Owl Taoist priest studying the gunpowder formula, and found that the other party was thoughtful and active, and suddenly thought secretly: "If you give him a little more time, I am afraid that he will really succeed......"