ps1. It is indicated below that gunpowder and other things are weak!!

Li Wei and Kai saw the three Vikings walking towards the third floor. They looked at each other, nodded secretly, and then began their plans.

At this time, a sharp-eyed Viking saw a black shadow flashing across the third floor, and immediately pointed in that direction and shouted: "Look, where is the black shadow?"

Hearing him say this, the other two Vikings hurriedly held up the torches and shone in that direction, but to their surprise, the place was empty and there was no shadow.

At this time, Viking B blamed the Viking C who pointed out the shadow and said, "There is nothing there! Did you make a mistake because you were in a hurry to avenge them?"

Viking C said confidently: "I read it right, there was indeed a black shadow there just now. I swear in the name of the great god Odin that if I read it wrong, I will not die well."

At this time, Viking A spoke, "Since he swears in the name of the great god Odin, then this matter should be true. Let's go there and take a look. It is very likely that those who killed our partners will hide there."

Speaking of this, the Viking Armor held the weapon in his hand tightly and said with a ferocious expression: "We must tear those people apart, and actually used these dirty methods to attack these dirty tricks to kill us great warriors."

When the other two Vikings thought of the tragic situation of their dead companions, they still clasped the weapons in their hands silently, obviously agreeing with the words of Viking Ar.

When Viking A saw that his companions agreed with him, he felt a little proud, then took the torch, took a step forward, and said, "Then, let's go over there and take a look!"

So, these three people walked towards the direction where the black shadow appeared just now.

Li Wei, who was hiding in the dark, sneered at it after hearing the words of the Vikings A. You are robbers, why do you want to pretend to be a warrior? Isn’t this to be a bitch and a archway? Since you miss your companions so much, I’ll send you to see them this time!

Thinking of this, Li Wei touched the crossbow in his hand, then quietly hung it behind the three Vikings, and walked towards the place he and Kai planned.

The three Vikings had no idea of ​​Li Wei's follow, but just walked in the direction where the black shadow appeared.

Among them, the black shadow kept appearing in front of the three Vikings, not concealing his traces at all, as if he was deliberately leading the Vikings to a place.

The Vikings didn't think so much, and kept chasing the dark shadow in the direction where the shadow appeared, not caring at all why the dark shadow kept appearing in front of them.

Finally, these Vikings came to the end of the road.

When the Vikings came here, they found that the black shadow had disappeared, and quickly raised the torch to look around. After careful observation, they found that there were rooms on both sides of the aisle, but the doors of the room were tightly closed.

However, at the end of the road, the door was opened, and it looked like it was too hasty and did not close the door.

At this time, the three Vikings looked at each other, wondering if they should go to the room. After all, the Vikings who were burned to death on the second floor gave them too much excitement. They didn't know if they would be burned to death by unknown enemies like the unlucky Vikings.

Therefore, no one of these three Vikings was willing to take the first step and walk towards the room that was close to you.

Finally, Viking A stood up and said to his two hesitant partners: "The enemy is in that room. As long as we attack, we can catch those who killed our companions and avenge them. What are you still hesitating about?"

Vikings B and C hesitated for a moment, but refused to step forward. After all, neither of them knew what the enemy was behind the room was like, nor did they know what trap the enemy had designed for them.

At this time, Viking A spoke again and said, "Since we are all afraid of that enemy, why don't we go to that room together. I think even the powerful enemy is impossible to kill us all in an instant. In this way, as long as we take care of each other, our safety will be guaranteed."

After hearing Viking A's words, Viking B and Viking C looked at each other and felt that only this method could ensure their safety, so they agreed with Viking A's idea.

Seeing that the three Vikings had already made up their minds and began to walk towards the half-open room, Li Wei couldn't help but smile as he succeeded in his plan, but when he thought of what the Vikings were about to encounter, Li Wei couldn't help but distance himself from those Vikings and hid his whole body in the corner.

Li Wei estimated for a moment and found that he did this to avoid the coming damage. He couldn't help but breathe a sigh of relief. At this time, he was worried that Kai, who was bait, and he said silently in his heart: Kai, you have to hide well, because the attack that appears next will be more violent than imagined.

Where was Kai at this time? To the surprise of the Vikings, the dark shadow they had been chasing for a long time, not hiding in the half-open room as they thought, but in one of the rooms on both sides of the aisle. Moreover, Kai was hiding under the bed.

Kai hid under the bed in his room, and could not understand why Li Wei asked him to hide it all, nor did he understand what the arrangement he and Li Wei had made on the third floor before were useful. But when Li Wei told him, he still did the serious expression on his face.

Through the crack of the door, Kai saw the light constantly moving towards the room carefully arranged by him and Li Wei, and knew that the Vikings were walking towards the trap step by step.

However, Kai, the hunter who set up the trap, didn't know how powerful the trap he set up was. And when he thought of the items he and Li Wei used to set up, he was puzzled, is that thing really lethal?

At this moment, Kai could only pray that the traps they set were really as powerful as Li Wei said.

In this way, under Li Wei's expectation and Kai's prayer, the three Vikings walked towards the half-open room step by step.

Before coming to the door, the three Vikings stopped involuntarily. They looked at each other and then turned their eyes to the door. At this moment, these Vikings were still worried that there would be some demon moth behind the door, which would make them killed unknownly like their previous partners.

After hesitating for a while, Viking A came up with a method. He said to B and C: "Why don't we count one, two, and three, and then rush in together?"

Vikings B and C both agreed, so Vikings A said in a countdown: "One, two, three. Fight!" After saying that, these three Vikings really rushed to the room together, and there was no one cheating.

When the Vikings rushed into the room, they realized that the room was so narrow that the three of them had to squeeze together.

Vikings A glanced around and couldn't help but breathe a sigh of relief, because the fourth person could not be hidden in such a narrow room, so they didn't have to face those mysterious enemies.

Vikings B and C also realized this, and their faces improved, with relief on their faces.

Just as Vikings A was about to say something, a light suddenly appeared in the narrow room. The light was so close that it quickly swallowed the three Vikings.

Before the Vikings could react, a loud noise suddenly broke out in the narrow room, and the heat waves blew the Vikings to pieces. Even Li Wei, who was hiding in the corner and was ready, felt the heat waves coming from the room.

Kai, who was hiding under the bed, heard a loud noise, and then the entire mansion swayed for two or three seconds. He couldn't help but be curious about what the Vikings had encountered.

At this time, Kai heard Li Wei calling his name in the aisle, and couldn't help but crawl out of the bed and prepare to walk out to meet Li Wei. Who knew that when he got out of the bed, he found that his room had completely changed. The thick wooden door was blown away, and the things in the room were messed up.

Kai looked at all this blankly, not understanding why his room was originally pretty good. At this time, he suddenly remembered Li Wei's words: "Kai, do you mind if I burn your house?" He couldn't help but wonder, could all this be caused by Li Wei.

Thinking of this, Kai immediately ran out of the room where he was hiding and came to the aisle. On the aisle, he couldn't believe what he saw. It turned out that the room he and Li Wei designed to ambush the Vikings, somehow it turned into big hollows. The rooms on both sides of the aisle were the same as the room where Kai was hiding. The wooden door disappeared and the room in the room became messy.

At this time, Li Wei walked to Kai and saw Kai staring at all this. He couldn't help but ask anxiously: "Kai, what's wrong with you? Did you get injured by the explosion?"

Kai saw Li Wei and came to his senses, then asked Li Wei anxiously: "Li Wei, where are those Vikings? And why did my room become like this? And, what happened to the loud noise just now and the shaking of the whole house?"

Seeing that there were no obvious scars on Kai's body, Li Wei breathed a sigh of relief. Fortunately, the mansion he had created did not involve Kai, but the power of the explosion was really strong.

Seeing that Li Wei did not answer his question, Kai stood there and thought deeply, and couldn't help asking Li Wei again: "Li Wei, what's going on?"

Li Wei came to his senses and said apologetically to Kai: "Sorry, I was distracted just now. As for what happened just now, don't you know? Have you forgotten? Didn't I set up with you in that room for a long time? Those Vikings stepped on the trap, so it turned out like this."

"That room?" Kai asked in confusion. He remembered that he did have some things arranged in that room with Li Wei, but those things did not have such power.

So Kai directly expressed his question: "Yes, Li Wei, we did have arranged it in that room. But we just kept sprinkling flour that we could eat for three months there. Could it be that the flour we eat every day would have such great power? An explosion would occur? And, what about those Vikings? Why did their bodies disappear? Even the bodies disappeared?"

"Uh? This..." Li Wei couldn't help but smile bitterly. He pointed to the red minced meat on the ground, then pointed to the disappeared room, and said, "Some of those Vikings have become these minced meat. In addition, I think they should have fallen."

"As for the question of flour explosion..." Li Wei then told Kai about the principle of flour explosion.

While explaining to Kai, Li Wei remembered the scene when the chemistry teacher burned the flour powder while he was doing experiments at school.

Unexpectedly, the power of flour explosion in a narrow room was so amazing. No wonder the teacher kept telling us not to do this experiment privately.

Sure enough, the chemistry teacher is on board!

PS2 explosion principle

The reason why dust becomes "explosive" is because the dust has a large surface area. Compared with blocky substances, dust has strong chemical activity, large contact area, many oxygen molecules adsorbing, and fast oxidation and heat release process. When the conditions are appropriate, if one of the dust particles is ignited by fire, a chain reaction will occur like an atomic bomb, and an explosion will occur.

(Don't imitate, you will bear the consequences)
Chapter completed!