ancient criminal minds

Rong Zhen and Lu Zheng rushed all the way to Shilipo carefully, and sure enough, they found many soldiers coming and going there, and the guards were extremely strict.It seems that they guessed correctly, King Wei's gunpowder storehouse is in this place, but how to pass so many soldiers to blow up the powder storehouse without anyone noticing is a big problem.

Afraid of being discovered by others, Rong Zhen did not let Lu Zheng approach, but asked him to wait for him at a place not far from Shilipo, and went to investigate by himself, and when he came back, Lu Zheng couldn't wait to ask: " How about it?"

Rong Zhen nodded: "My guess is correct."

Lu Zheng heaved a sigh of relief, Rong Zhen's move was too risky, if they guessed wrong, they might be in a trap.

Rong Zhen's complexion was still not very good. He did consider that King Wei would strictly guard the gunpowder storehouse, but he never expected that there would be so many guards. The king of Wei was very vigilant, so he sent more troops.

After Lu Zheng asked about the situation, he fell into deep thought.

King Wei's gunpowder depot was located in a valley. Not only was there a lot of guards in the valley, but also there were archers on both sides of the valley.

The oil in Lu Zheng's hand can probably make ten simple bombs, but if the simple bombs don't hit the gunpowder magazine, they may be useless at all, and they will expose their positions, which is not worth the candle.

Rong Zhen knew that he had miscalculated this matter, but in fact, when he thought of this idea, he had already planned for the worst.He knew that if the gunpowder depot could not be destroyed, even if Su Dai led an army into Yanjing, he would only fail in the end.Of course, he could ask Song Zhiyi or Nie Zhishu to do this. I believe that with the loyalty of the two of them, even if they know that the road ahead is dead, they will never say anything.

But he didn't make such a decision.

Rong Zhen's mentor once told him that those who really achieve great things must never have the kindness of a woman. He is ruthless to his enemies and even more ruthless to himself.Over the years, Rong Zhen always thought that he was doing a good job, but in fact, he was always the little overlord who wandered around Yanjing at the age of 15 and brought a lot of chivalry.

Having figured this out, Rong Zhen calmed down instead, his thoughts became clear, and many things that he hadn't thought of before came to mind one by one.

King Wei set up the gunpowder depot in Shilipo, is it really just the obvious reason?If not, wouldn't he have used this entire gunpowder magazine as a trap so generously?

Ye Wenguan saved them, why did he suddenly drive them away?

What's more, the piecemeal information about the truth that he got in these years, is it because someone deliberately revealed the clues, leading him step by step to the present?

Rong Zhen knew that these things might only be known by asking King Wei or going underground to find Emperor Yongning.

Now that he has figured this out, Rong Zhen doesn't intend to sit still. Since King Wei dared to use such a large amount of money to set a trap, he will let him lose more than he gains.Rong Zhen glanced at Lu Zheng beside him, his eyes showed nostalgia and struggle, he didn't know how to say goodbye to Lu Zheng, if he knew, he would be with him regardless of life and death...

Thinking of this, Rong Zhen used his hand as a knife, and when he lifted it up, he was about to chop off at the back of Lu Zheng's neck.

Lu Zheng didn't notice it, but when Rong Zhen's hand was about to touch his neck, he suddenly yelled: "There is a way!"

Rong Zhen quickly withdrew his hand, and all the force that had been removed was transmitted back to his body, which made him unstable for a moment, and he took two steps back.

Lu Zheng didn't care about this, and said excitedly, "I thought of it, I can use a hot air balloon!" Thinking that Rong Zhen couldn't understand, he quickly changed his words, "It's the Kongming Lantern!"

Rong Zhen frowned: "Kongming lanterns are only used to send distress messages when the city is under siege. How can we send simple bombs into the valley?"

Zhuge Liang invented Kongming Lanterns to call for help during the siege. Later, the principle of Kongming Lanterns became known to the public, and the military effect was not so strong. Only some businesses used it to attract children or lovers during festivals.Kongming lanterns generally use candles as fuel, so the outer shell can only be made of very light objects such as bamboo strips and paper, otherwise it cannot be lifted into the air at all.

Knowing Rong Zhen's worry, Lu Zheng quickly said, "But we have oil!" In fact, in modern times, the development of hot air balloons has been very mature. Generally, helium is used as fuel, but now they don't have such conditions at all. , can only be replaced by oil, anyway, Lu Zheng does not intend to sit on it himself.

Once Lu Zheng explained the principle, Rong Zhen understood, but he still shook his head and said: "Even if you can make your so-called hot air balloon, how can you guarantee that it will definitely fly to where you need to go? And how to ensure that simple bombs can be ignited in the air?"

Lu Zheng has already thought of these, thank him for the science he learned in high school, and thank him for not returning all his physics knowledge to the teacher.To get the hot air balloon to the right position, you need to calculate the wind speed and the speed at which the oil burns.He picked up a branch and calculated on the ground. Fortunately, when he brought the crude oil to the border town, he used his remaining chemical knowledge to desulfurize the crude oil and remove impurities, and then calculated the burning speed of the crude oil. .Nowadays, as long as the resistance caused by the wind speed and the size of the hot air balloon is used, the hot air balloon can be roughly sent to the right place according to the appropriate wind direction. Fortunately, there is no need for precise strikes, as long as the simple bomb can fall on the top of the gunpowder depot. It can have a chain reaction.

As for the simple bomb method, Lu Zheng put all the materials into the bamboo tube, plugged it tightly with a plug, leaving only one lead wire tied to the bamboo tube, and then coated the bamboo tube and the lead wire with white phosphorus, when the time comes the fuel for the hot air balloon After one o'clock, when the bamboo tube fell rapidly, the heat generated by atmospheric friction was enough to ignite the white phosphorus.

Lu Zheng had already prepared the things for making simple bombs, and now they are all hanging on the horse, but there is no white phosphorus. Fortunately, both of them brought fire pockets, and white phosphorus was placed in the fire pockets, which are only used for the fuses. That place is enough.

In fact, they have no other choice right now, and Rong Zhen can only trust Lu Zheng, not to mention that since they met, Lu Zheng has brought him enough surprises, and this matter sounds feasible. It was very high, so he agreed.

The weather is still hot now, and the most suitable time is actually in the evening. The two of them are lucky. The southerly wind has been blowing recently, and the direction happens to be towards the valley at Shilipo.

The two didn't delay any longer, and made a simple hot air balloon out of cloth and leather. Although the final product looked very shabby, after Lu Zheng's experiment, there were no major problems.

Now just wait for the evening.

The waiting time was a bit long, Rong Zhen checked the hot air balloon again, Lu Zheng was not at ease, and checked again, finally arrived in the evening, the summer evening was a bit dark, the setting sun hung on the top of the mountain and refused to set, the air A mildly hot wind blows in, as if it wants to take away the heat.

Lu Zheng and Rong Zhen came to a high ground. From here, they could see the silence in the valley, but weapons and low voices could be heard faintly. Because there was a gunpowder magazine in the valley, there was no fire, only the valleys on both sides There are soldiers with torches walking around on the ground to prevent someone from attacking at night.

What Lu Zheng held in his hand was a hot air balloon that had already been prepared and tied with a simple bomb. His hands were trembling, and his heart was beating wildly. He knew that this was their only chance. If the gunpowder could not be destroyed Ku, he and Rong Zhen are afraid that they will die, so even if he knows that the valley is full of lives, he can only force himself to be cruel.Now he is only worried about whether the hot air balloon can complete the task. After all, he only has theory so far and has never practiced it.

Lu Zheng put his warm palm on the cold back of his hand, and Rong Zhen's firm voice sounded in his ear: "Don't be afraid, believe in yourself and me."

His voice was as calm and powerful as ever, as if they were not taking such a risky gamble, but a battle with a sure chance of winning.Lu Zheng's heart suddenly settled down. He didn't look back at Rong Zhen, but carefully applied white phosphorous to and around the lead wire, and then ignited the fuel under the hot air balloon.

As the bright flame illuminated Lu Zheng and Rong Zhen's face behind him, the airbag continued to inflate, and finally, with Lu Zheng's light push, it swayed towards the direction of the valley.

Lu Zheng nervously watched the hot air balloon getting closer and closer to the destination, his heart almost jumped into his throat.It’s just that the wind speed was too strong or the fuel was put in too much. When the hot air balloon reached the top of the valley, it continued to fly forward, and finally flew directly over the valley.

Disadvantages of apprenticeship!

Lu Zheng's heart was raised again, because the materials were limited, and oil was reserved for fuel besides making simple bombs, so they didn't make many hot air balloons, but only made three.But now that the first chance fails, if the next hot air balloon fails again, I am afraid that this matter will be suspended.

Lu Zheng calmed down, carefully measured the wind speed again, and then scooped out some fuel for the second hot air balloon. He was afraid that there would be no wind after a while, so he didn't dare to dawdle any longer, and repeated the first step. Once again the hot air balloon was sent to the sky.

As the hot air balloon continued to approach the destination, Lu Zheng's heart became more and more nervous. His hand was only held by Rong Zhen in the palm of his hand. He could feel Rong Zhen's comfort, but this made him even more eager to hope that this time he could success.

I don't know if the old man really heard Lu Zheng's voice or his half-baked physics knowledge played a role. This time, the hot air balloon was flying to the top of the valley, and suddenly the flames went out in a flash. Without power, the simple bomb quickly flew towards the sky. go down.

Because of the darkness, Lu Zheng couldn't see the dropping process of the simple bomb, but he saw a flash of fire in mid-air, and then, a huge fireball exploded above the valley, and the scattered sparks and oil instantly ignited the entire valley Suddenly, the valley was full of voices and panic.

The flames shot up quickly, and from their place they could hear faintly terrified calls for firefighting from below, but it was too late. With a loud noise, the valley was like an earthquake, and there were loud noises and tragic fires one after another. Howling, against the background of the fire, it is like hell.

Lu Zheng was so excited that he couldn't help turning around and hugging Rong Zhen directly: "We succeeded!"

Rong Zhen also showed a gentle smile. He put his hands around Lu Zheng who was too excited, so that he would not fall off the cliff when he got excited. He never thought that Lu Zheng could really succeed. This little guy always seems to be on the mountain. The place where the poor water returns appears, bringing him a bright future.

And just when both of them were immersed in joy, Rong Zhen's complexion suddenly changed, and he rolled to the side with Lu Zheng in his arms.

Only a few sounds of "咻咻" were heard, and a few sharp arrows pierced where they were standing before. Rong Zhen's horse did not dodge in time, and was directly stabbed in the stomach by an arrow, neighing, and fell to the ground .

Rong Zhen stopped Lu Zheng behind him, looked at the place where the sharp arrow was shot, and a figure slowly walked out.

"Han Zhu!"