Nightwatcher

A quarter of an hour later, two yamen servants brought the things in and placed them in the hall.

The three adults glanced at the equipment, then turned to look at Xu Qi'an.

Chen Fu Yin said in a deep voice: "Everything you want is here, you must give me a satisfactory answer."

His attitude has changed.

For a quarter of an hour, this fourth-rank official racked his brains for a long time, and had to admit that Xu Qi'an's deduction was very reasonable, but there were still many mysteries that had not been solved, such as the fact that Tax Yin fell into the river.

What is the mystery in it, he can't understand it.

"If the grass-roots people help you solve this case, can you write to the saint to exonerate my Xu family from the crimes?"

Dafeng attaches great importance to the inheritance of father and son, and the son will take the place of the father, and can also perform crimes and meritorious deeds for the father.

"Naturally." Chen Fuyin nodded.

Xu Qi'an nodded, and squatted down in front of the utensils. The utensils in front of him were candles, salt, porcelain cups, and iron wire.

What he has to do is simple, high school chemistry knowledge: extract metal sodium.

In ancient times, it was impossible to extract this thing. There are two difficulties: electricity and the melting point of sodium chloride.

But in this world, Xu Qi'an knew that there was a profession that could do this.

The Sixth Rank of Sitianjian Warlock: Alchemist!

Alchemists are well-known occupations in Dafeng, and their various inventions and creations have long been integrated into the lives of ordinary people.

Xu Qi'an is not sure that the tax silver that exploded must be sodium metal, this is not important, what is important is to open up a way of thinking to explain the phenomenon of tax silver explosion.

In the process of deciding a case, bold assumptions and rigorous reasoning are necessary work in the early stage. The last thing is to verify and collect evidence.

In his previous life, he had encountered a murder case that was still fresh in his memory. The criminal police stayed up all night, opened up their minds based on clues, and made several conjectures about the course of the case. Based on this, they went to collect evidence.

Then they all overturned and re-reasoned.

It is also possible that tax silver is not sodium metal, alchemists can do that anyway.

This is enough.

Finding the right direction for several adults, this is what he has to do.

If the direction is right, you can follow the clues to investigate, and it is not difficult to find out who is behind the scenes.

If you are still struggling with the idea of ​​monsters making trouble, the case will never be solved. Even if the case is solved in the future, he will have already sent you to the court: send you away, thousands of miles away!

He melted the coarse salt with water, and after stirring, covered the mouth of the cup with raw rice, and slowly poured the salt water into it.

After filtering, the porcelain cup holder is roasted on a candle and stirred continuously with a bamboo skewer.

After a while, the brine in the cup evaporated to dryness, and the crystals precipitated in it were sodium chloride.

The essence is to further purify the salt.

Chen Fuyin, the middle-aged man, and the super-looking girl in the yellow skirt, the three of them stood on the sidelines and watched intently.

Xu Qi'an raised his head and grinned at the girl in the yellow skirt: "My lord is the disciple of Si Tianjian, right?"

He noticed the feng shui dish on his waist, no one except Si Tianjian's disciples would use this thing.

The girl in the yellow skirt gave an 'hmm' and said with a smile: "The master is Si Tianjian."

The delicate and bright oval face is like a shelled egg, white and flawless.

It doesn't matter what the breasts of the disciple of the supervisor are. Xu Qi'an said softly, "Sister, please melt these crystals for me."

The melting point of sodium chloride is about 800 degrees Celsius.

The girl in the yellow skirt pursed her mouth: "Controlling fire is an ability only an alchemist can do. I'm just a Feng Shui master."

"However, my master gave me a magic weapon." She changed the subject, took off the Feng Shui tray at her waist, fiddled with it a few times with her green fingers, input the air mechanism, and the word "fire" lit up.

"Stand back!"

Xu Qi'an immediately backed away, and the next moment, a tongue of bright and dazzling fire spewed out, submerging the porcelain cup.

"Stop!" Xu Qi'an yelled to stop immediately, then quickly inserted two iron wires into the porcelain cup, and asked, "Is it electrified? It's Leifa! Be careful to control the voltage. Well, this step is very difficult, and you may fail many times."

She turned the feng shui dish, and the green onion jade finger lit up the word 'thunder', and several arcs of electricity flashed in the void and touched the wire.

The molten sodium chloride of 'Zizi' undergoes a violent chemical reaction.

"stop!"

Xu Qi'an held his breath, and leaned over the mouth of the cup to look. A lump of bright silver metal was formed, and the edges were some untransformed crystals and impurities.

It turned out to be a success in one go, the voltage was just right and Xu Qi'an was pleasantly surprised.

Sodium metal is produced by electrolysis, and the voltage is about 6-15 volts. He is prepared for repeated failures.

Unexpectedly, the Ouhuang possessed his body, and it was done in one go.

Chen Fuyin and the middle-aged man couldn't wait to look over their heads. Inside the cup was a lump of silver metal. At first glance, it was quite similar to silver.

Chen Fuyin's pupils shrank, his heart was extremely shocked.

Li Yuchun clenched his fists tightly, staring blankly at the silver metal block, as if lightning struck in his mind, splitting all the fog.

"My lords, please take a look," Xu Qi'an poured out the sodium metal, wrapped it in rice paper, and weighed it in his hand:

"This thing is much, much lighter than silver, but its appearance is extremely similar. If someone uses this thing to pass off as silver, can it be mistaken for real? Several adults can also weigh it."

He handed the sodium metal to Chen Fuyin, at this time, the color of the sodium metal gradually turned dark, almost exactly the same as silver.

The middle-aged man took it and weighed it. His eyes sparkled, and he said repeatedly: "Sure enough, it is much lighter. If it is this thing that is being transported, it would be reasonable. Miss Caiwei, try it."

The girl in the yellow skirt took it, weighed it carefully, and then stared at Xu Qi'an with strange eyes: "You, are you an alchemist?"

No, I'm not, I'm just a chemical porter.

Scholars are more active in thinking after all. After Chen Fuyin was overjoyed, he suddenly shook his head and said in a deep voice: "No, no, even if the silver is replaced like this. What happened to the explosion? If it wasn't for the monster hidden in the river, the fake silver entered the water How could it explode."

Xu Qi'an didn't answer, he reached out to take the sodium metal, walked to the desk, and threw it into the pen washing bowl.

The blazing fire was lit, and the smoke billowed.

"boom!"

The sodium metal reacted violently in the water, and the pen washing tank burst into fine cracks.

"This, this..." Chen Fuyin was stunned.

"This fake silver will explode when it encounters water. This can explain why such a violent explosion will occur after the silver falls into the water." Xu Qi'an explained.

The middle-aged man murmured: "From the very beginning, we were misled. The behind-the-scenes mastermind used the explosion and the evil wind to make us think that it was a monster. The focus of the investigation was on tracking and hunting."

"No wonder Qin Tianjian's qi-watching technique can't detect monsters."

Xu Qi'an added: "After the tax money fell into the water, the soldiers only recovered more than a thousand taels of silver. If I guessed correctly, the silver was spread on the top floor to hide."

It fit perfectly, and all abnormalities were aligned.

"Xu Qi'an!" The middle-aged man's eyes were full of approval: "Okay, you're fine."

A frown suddenly frowned, froze at Xu Qi'an's crooked neckline, and Li Yuchun continued to pat his shoulders to help him straighten his neckline.

Xu Qi'an was flattered that this adult appreciated him so much.

Chen Fuyin frowned and said: "Since the money is fake, where did the real money go?"

The girl in the yellow skirt also showed a dignified expression when she heard the words: "The tax money goes out of the warehouse and enters Beijing, and it changes hands layer by layer. If you want to question the crime, a large number of officials will have to be imprisoned. The difficulty of recovering the money is like looking for a needle in a haystack. And this matter has surpassed us. The scope of the authority must be reported to His Majesty."

Chen Fuyin nodded, that's what he meant.

The middle-aged man had a different opinion, and his voice was low: "The tax bank was escorted all the way into Beijing, and changed hands layer by layer. If it was fake, it should have been discovered long ago. The only possibility is that it was recently dropped."

Chen Fuyin's eyes lit up, this greatly narrowed the scope of the investigation.

"Come here, prepare the sedan chair, prepare the sedan chair quickly, I want to go out." Chen Fuyin rushed out of the inner hall eagerly.

Middle-aged men followed closely behind.

Xu Qi'an hurriedly shouted: "Master Fu Yin, don't forget your promise to the grassroots."

Ha, metal sodium will burn when it meets water, making a roar. What will be the effect of throwing hundreds of kilograms of sodium metal into the river? I feel like dynamite.