On this day, the sunset in Flint City was particularly red, and Duan Xiaofei, Miao Ke and Lin stood on the Flint Mountain, and in front of them was a bulging tomb. Pen "Fun" Pavilion www.biquge.info

"Teacher, it's strange that I don't come to see you often, I will help you fulfill your wishes, you ...... Rest in peace. ”

Miao Ke knelt down on her knees in front of the grave, two tears streaming down her cheeks, Miao Ke stood up and bowed deeply to the teacher's grave.

"Rest in peace. Duan Xiaofei also bowed to the tombstone.

"There's a magic array I've set up here, and no one will come to disturb your teacher. Lin patted Miaoke on the shoulder and said, "Your teacher is a respectable person. ”

"Thank you. Miao Ke wiped away her tears and stared at the tombstone engraved with "The Tomb of the Flint Old Man" in front of her for a long time.

"It's getting dark, so let's go back to Flint City first. Duan Xiaofei said.

"Hmm. ”

Miao Ke nodded slightly, and the group of three went down the strange stream on the Flint Mountain, and Duan Xiaofei had only now seen the appearance of this stream that would precipitate crystals.

This creek is only less than two meters wide, and the current is not turbulent, and on both sides of the stream, there is a dense layer of crystalline crystals, which are naturally called "fire crystals".

"Is this the raw material you used to make gunpowder?" asked Lynn as she crouched down by the stream, gently picking off a small piece of hedrons.

"That's right, fire crystal is one of the three raw materials of gunpowder. Duan Xiaofei nodded.

"It's not something rare. Lynn threw the spar back into the stream and said, "This spar increases the intensity of the flame's burning, and can turn the yellow flame into purple." ”

"Of course, the thermal decomposition of potassium nitrate produces oxygen, which can support combustion, and it contains potassium, and the flame reaction of potassium is purple. Duan Xiaofei said casually.

"Potassium nitrate, oxygen, what's that?" Lynn wondered.

"Uh...... Well, it's a word from another world. Duan Xiaofei thought about it, and had to explain it so simply, although he knew the composition of air, knew that oxygen could fuel combustion, and knew what the flame reaction was, but if he wanted to explain it clearly to the natives of this world, he couldn't do it - even if the other party was a powerful magician.

"So, you first follow your recipe and reconfigure the gunpowder. Lin pulled Duan Xiaofei and ran back to Teacher Miaoke's old mansion, ignoring the two clusters of vines oozing blood, and said excitedly, "I've also thought about this recipe for a long time, but no matter how you mix it, you need at least one magic material. ”

"Okay......"

Duan Xiaofei saw that Lin was so enthusiastic, so he had to mix and grind sulfur powder, charcoal and fire spar according to the ratio of gunpowder he had configured before, and after seeing Duan Xiaofei pour out the black powder that had been configured, Lin immediately took out a magic weapon used to make fire from the magic storage belt.

"Wait!" Duan Xiaofei saw that Lin wanted to ignite these gunpowder directly, he suddenly became anxious and immediately stopped it, "You can't light it here!"

Duan Xiaofei found a yellowed piece of paper in the room, poured some gunpowder on the paper, and rolled the paper into a paper tube.

"Go outside, don't set the house on fire. Duan Xiaofei opened the door and put the paper tube on the ground.

"I'll do it. ”

Miao Ke just wanted to throw a small fireball spell into the paper tube, but was stopped by Lin: "Don't use fire magic, let me do some." ”

Lin summoned a vine with the tip of the vine wrapped around the magic weapon that made the fire, and the three of them stood three meters away, Lin carefully let the flame on the magic weapon touch the paper tube.

Rumble!

The moment the paper tube was ignited, a half-meter-high flame burst up, and then thick smoke poured out.

Duan Xiaofei had wrapped a large dose of gunpowder in the paper ball just now, and looking at this formation, it could definitely be compared to an intermediate fireball technique.

It was also the first time that Lynn had seen gunpowder ignite, and she was shocked, "You can produce such an effect using only three common materials and no magic potions......

"Although I can achieve three times the power of adding a magic plant like Flame Grass and using fusion magic at the same time during the preparation process, this kind of gunpowder of yours can be done even by ordinary people who can't do magic!" Lin's emotions were a little excited, she said, "Your recipe must not be leaked! If the army gets gunpowder, I am afraid that there will be a new war on the mainland." ”

"Understood. Duan Xiaofei nodded and said, "I won't say it." ”

In the world in which he originally lived, that is, on Earth, gunpowder was definitely one of the final inventions in the history of human progress, but the number of people who died under the invention of gunpowder must also be counted in billions.

In the current world, that is, the Fertile Continent, there is a magical civilization here, and the civilization level of the society is not high, because of the existence of magic, a small number of powerful magicians check and balance each other, and the continent maintains a delicate balance.

But if humans suddenly get their hands on "gunpowder", something that allows ordinary people to fight against magicians, then this balance may be upset.

Even if an ordinary person uses gunpowder, the power can only reach the level of intermediate magic, and this level of power is nothing in front of a high-level or even more powerful magician, but the number of ordinary people is a thousand times or even ten thousand times that of a magician! A high-level magician can parry two or three intermediate-level magic-level attacks, so what about ten or hundred? Even the most powerful magician will run out of mana.

But well...... Although Duan Xiaofei would not announce the formula of gunpowder, he didn't say that he wouldn't use it himself, as a traverser, of course he had to make good use of the benefits of his "traverser" status, not to mention, although Lin promised to teach him magic, Duan Xiaofei didn't have the ability to protect himself now, and some things were good for self-defense.

So, Duan Xiaofei worked in this old mansion all night, and he didn't stop until all the raw materials were used up.

Although it is impossible to make guns and cannons under the current conditions, it is not difficult to make a gunpowder bag like the one just now, so that Duan Xiaofei has thirty more gunpowder rolls in his bag, and he has also created a simple lead to insert in the gunpowder roll, as long as the lead is ignited and the gunpowder roll is thrown out, it is a simple bomb.

This "bomb" does not explode, but only a fireball, but it is enough.

Not to mention the high temperature when the fireball burns, in this world, when have those indigenous people seen this kind of thing? When they see the fireball that can be thrown, the first thing they think of must be magic, and the identity of a magician is a hundred times tried and tested on the Rich Continent, and ordinary people know that they are facing a magician, ninety percent of them will immediately beg for mercy, and the remaining one percent will be frightened and faint.

There is a famous saying in this world that it is better to offend a king than a magician.