Northern Song Dynasty: The City of Qingquan Mystery Case

The blue-clothed strange thief walked with his face masked, walking around the mansion silently like a ghost.

So far, Xia Qianqing is the only person who has seen the true face of the Tsing Yi Robber.In an instant, the nervousness was swept away, replaced by excitement.He poked his head slightly, wanting to see more clearly.Don't look at it now, but you won't see it in the future—even the current emperor can't see the true face of the blue-clothed thief!

No one lit lanterns in the entire Yongcheng government office, and the tall trees cast mottled shadows under the moonlight. In addition, only a few stone lamps in the yard were still burning brightly.The strange thief in Tsing Yi walked from the front door to the back door in a majestic way, from the darkness to the light, no one stopped him at all.

Qianqing thought to himself, there was some kind of medicine on the handkerchief he was covering his mouth and nose, maybe it was the same medicine that stunned Chuuxue last time.

The wind and the clouds move, and the sky changes again.

The wind-blown windows flapped and creaked, and there was a slightly damp earthy smell in the air.Qianqing knew that the weather was fickle, and it might rain again.He picked up the gourd on the table and stuck it to the window, so that the window was always open and would not close suddenly.The arrow was on the string, but Ganqing dared not light the lamp, and aimed at the courtyard by the moonlight.

He had to choose the moment to release the arrow—the sky should not be covered by dark clouds, the blue-clothed thief must be completely exposed to his vision, and there should be no trees between the arrows.

Gan Qing watched with bated breath, waiting for the opportunity.But I saw the strange thief in blue running to the water tank in the corner of the yard.

Startled, Ganqing slowly put down the bowstring, only then did he remember the problem with the water tank!

According to the two adults, the water tank is used by Yixiang Spring to hold water and prevent fire.Xiang Quan personally sent someone to deliver one jar of water in the morning, and three jars of water in the afternoon—and the three jars of water this afternoon were undoubtedly sent by the Tsing Yi Robber.Two of the three vats are full of ants and have been broken; then, there is only one water vat left.

That's a tank of salt water!Qian Qing opened it himself.

Gan Qing watched as the blue-clothed bandit lifted the lid of the water tank, gathered the rhinoceros bones not far away, and threw them into the water tank in handfuls.

With a chill in Qian Qing's heart, he immediately understood.This is an ancient way of identifying objects.

Iron blocks and logs of the same size are thrown into the water, one sinks and the other floats.The same is true for rhinoceros.Xiangquan didn't weigh them carefully when making counterfeit products, but used bones of similar materials to imitate the size and shape, and the density naturally differed.

Using density to distinguish authenticity, the method of Tsing Yi Thief is as simple as that.Using the analogy of a stone and an egg, people put a stone and an egg of the same size into the water, and both will sink; but if they are placed in a certain concentration of salt water, the egg will float, while the stone will still sink.This is similar to the principle of the rhinoceros bone. The ups and downs of the genuine product and the fake product are different, so that the authenticity can be distinguished.

Qianqing shook his head, feeling incredible.I asked Xiangquan last night, if the real and fake products were thrown into the water, would one float up and the other sink?Xiang Quan's answer was that he tried, and they all sank.

From this, Qianqing knew that Xiangquan had definitely thought about the point about density.It's just that the rhinoceros bones are extremely small in mass, similar in size, and similar in material, so the density is not much different at all.It is precisely because this difference is too small that Xiangquan simply uses clean water to simply rule out the possibility of density identification.

Clear water is indistinguishable, but salt water is discernible.It is precisely this that makes Qian Qing feel strange. There is a fatal drawback in the identification of the density of salt water.

If you put a spoonful of salt in a tank of water, neither the real product nor the fake will float; if you add a tank of salt to a tank of water, both the real product and the fake will float—the ratio of salt to water determines the concentration of salt water.The densities of real and fake rhinoceros are almost the same. To distinguish them, the concentration of salt water must be extremely precise, so that ten thousand roots sink and two rise.

Therefore, this is simply impossible, and the Tsing Yi Bandit simply cannot predict in advance the proportion of salt water that can screen rhinoceros.Add a few more spoonfuls and you can go wrong.Qianqing guarantees with his head that he will never succeed.

Ganqing sneered, raised his bow and arrow.He also thought how clever the Tsing Yi Bandit was.

Every time the strange thief in Tsing Yi throws a handful of chopsticks into the water tank, he will check for a while to see if any genuine chopsticks come up, and then he will grab another handful.Suddenly, he paused, as if he had "identified" one, picked it up from the water tank and put it in his arms.

Qian Qing was a little panicked, how could this be possible?

I don't know whether it is true or false, and I don't care whether it is true or false.He was just waiting for his chance to shoot.The water tank is in the corner, and the corner is dark and difficult to shoot arrows.The rhinoceros bones are piled up all over the courtyard, and the water tank is in the east corner, so keep an eye on them, and wait until the strange thief in blue has received the last few handfuls of rhino bones before releasing arrows.It was in the west corner, with no shelter except a ginkgo tree, and the light was good.

At this moment, the wind suddenly blew, and the window creaked and blew open.With this shaking, the gourd rolled over, the stopper fell off, and the tea in the gourd dripped onto the window eaves and flowed down the wall outside.

This sound is not small, if someone is within a few feet, they can definitely hear it clearly.Ganqing hurriedly lifted the gourd, plugged it in, pulled the window back, and then picked up the oil lamp on the table and pinned it under the window.Gan Qing subconsciously glanced at the Tsing Yi Bandit, fortunately the distance was far and the wind was loud, so it was impossible for the Tsing Yi Bandit to notice the movement here.

He silently said God's blessing, and set up his bow and arrow again.The strange bandit in Tsing Yi has collected most of the rhinoceros bones in the courtyard of Yongcheng government office into the water tank.Ganqing tightened his bowstring, feeling excited, he was about to reach the ginkgo tree.

Just a little bit, just a little bit!

But the Tsing Yi Raider slowed down.This time, he looked at the water tank for a long time, and finally picked up a rhinoceros and put it in his arms.Gan Qing was stunned, and secretly screamed that it was not good—the two rhinoceros bones had been found, or rather, the Tsing Yi Bandit thought he had found them all.Regardless of whether the Tsing Yi Pirate got the real thing or not, he would go back home immediately.It's all over!

The speed of the Tsing Yi Raider is fast, and he will never keep things soon after he gets them!

Can't wait any longer, it's now!Whether it is well lit or not!

Gan Qing was highly nervous, calmed his breath, pulled back the bow and arrow, let go of his two fingers suddenly, and with a sound of "咻", the arrow flew out!

This shot was too fast, Qianqing felt numbness from his scalp to his arms, and saw the arrow brushing past the left leg of the Tsing Yi Bandit, Qianqing was secretly annoyed - there was wind today, he originally wanted to shoot through His legs can't move like this, just deviate a little to the right!

The blue-clothed bandit immediately dodges, saying it's too late, then hurry up, and make a decisive decision to shoot another arrow!There was another sound of "咻", the arrow had left the string, and the bowstring was still trembling, but the arrow shot into the left leg of the Tsing Yi Bandit!

Qing Qing was overjoyed, the second arrow could not be said to be in the middle, but it also achieved its goal.The blue-clothed bandit made a small noise, quickly bowed his body, dragged his legs and retreated into the shadows, leaving a small pool of blood behind.Gan Qing's head was buzzing, and the strange thief in Tsing Yi couldn't escape!He was too excited to hear a slight creak in the corridor.

It was the sound of people walking by.

Ganqing ran out quickly with a bow and arrow on his back, he was ecstatic, a wise man would make a mistake, and the Tsing Yi thief was about to be caught!Really going to be caught!Xia Qianqing finally felt elated!

After clearing his head, he stepped out of the room.

At this moment, a black shadow sprang out from the corner.

I didn't see anything clearly, I didn't know why and ran forward!In an instant, something hit him hard on the back of the head.It was pitch black before Qianqing's eyes, and he lost consciousness in an instant.

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