The carriage went away.

The two led the horse back, and Liu Zhongkui asked, "How?" ”

Xie Yao's eyes sank slightly, and he said, "There is something strange. ”

"What's wrong?"

Xie Yao said, "I can only be sure of one thing now, arsenic is not the cause of death. ”

She said, "There is a foul smell in the shopkeeper's mouth, and there is a little white pus on both sides of his teeth, and most importantly, there is no other odor on his body except for the smell of corpses, and when he is poisoned by arsenic, his first reaction is nausea, vomiting, and ......" Xie Yao paused, stopped his pace, and affirmed, "Diarrhea!" It's incontinence and diarrhea, but the restaurant shopkeeper doesn't, his clothes are clean, you say that the scene has not been cleaned at all, which means that he has not vomited, let alone incontinence, he must have another cause of death! ”

Liu Zhongkui was surprised, "Where did you learn it?"

Xie Yao said vaguely, "The master taught me." ”

Liu Zhongkui was even more surprised, "It turns out that Master Wu is so powerful!" ”

Xie Yao's face suddenly became strange, Liu Zhongkui didn't know why, seeing that her face was wrong, he thought something was wrong, and asked eagerly, "What's wrong?" Is something wrong? ”

Xie Yao finally couldn't bear it anymore, and threw up by the wall with a wow, "Fuck it...... Vomit...... His mouth stinks! …… Vomit...... Auntie, I can't stand it anymore! ”

Liu Zhongkui couldn't help laughing and laughed at her, "Who told you to smell it......"

Xie Yao ignored him, at first she just leaned against the wall and retched, the more she vomited, the more she remembered the stench just now, she finally couldn't control it, and she vomited and vomited.

At nightfall, Xie Yao went to the spring restaurant where the crime occurred again, and carefully looked at the scene again, the table, teacups, chairs, and drawers...... The room was so clean that there was no trace of it, but she closed her eyes, as if the situation of that day was in front of her.

As soon as the sun rose, the shopkeeper of the restaurant was eating breakfast, and soon felt a little unwell, he couldn't help but put down the bowl and instructed Xiao Erdao, "I'm a little tired, you take care of the business, don't come to trouble me if you have nothing to do." ”

Bowl!

Xie Yao frowned, the dishes on the table.

Xiao Er nodded yes.

The shopkeeper went to the room on the second floor, closed the door, and the window was open obliquely, with a hint of breeze into the house, the shopkeeper felt a little uncomfortable, and subconsciously went to the table to pour tea.

Teapot!

Xie Yao touched the empty teapot again, it was hot in summer, how could there not be a drop of water in the pot?

No, someone poured out the tea in the pot.

The shopkeeper drank a cup of tea, his body became more and more uncomfortable, his breathing was short, and he couldn't help but sit on the chair, weak. Soon someone came from the shadows, tied his hands and feet, blocked his mouth, and when his pupils shrank and his body twitched, he took out the prepared decoction, pried open his mouth and poured it down.

That cup of tea is deadly! Although the arsenic was also drunk, it was too late to attack, and the shopkeeper of the restaurant was already dead.

Arsenic is a medicine that every pharmacy has, the price is cheap, ordinary people often buy it to repel insects, for this reason the government has also made it clear that each household is not allowed to buy more than five dollars of arsenic per month, and the use must be explained when buying, and it must be registered in the register.

Therefore, investigating the source of arsenic is like looking for a needle in a haystack.

The people in the dark clearly want to take advantage of this.

Xie Yao pushed open the window, and the cold wind hit at night, and the entire bamboo forest was quiet.

She jumped down and stepped on the grass as she landed.

Someone above me shouted, "Grandma, why did you come by yourself?" ”

Xie Yao looked up, and by the window on the second floor, the two brothers, Liu Zhongyuan and Liu Zhongkui, were huddled together.

The two quickly jumped down, and Liu Zhongkui hurriedly said, "Grandma, you are a girl's family, if something happens to you, how can we explain to Aunt Ming!" ”

Xie Yao said, "Don't talk nonsense when you come." ”

Liu Zhongyuan looked around, it was pitch black, the moonlight was shining, and he could barely see, he asked, "What did you find?" ”

"Looking."

Xie Yao looked down, there was a weed under her feet, she pulled the fire fold, and when she got closer, the upper part of the middle bush had all withered and yellowed, and the breath of death was spreading downward, reaching the rhizome, and the sides were verdant and green, and the growth was gratifying.

"Any of you take off your clothes and dig up this piece of mud, and I'm going to take it back."

Liu Zhongkui asked while undressing quickly, "Why?" What do you want this mud to do? ”

Liu Zhongyuan said, "What do you suspect?" ”

Xie Yao said, "I suspect that this is a long-planned murder. She glanced at it and saw that Liu Zhongkui was about to use his hands to plan, and hurriedly stopped, "Don't use your hands!" With a dagger or something. ”

Liu Zhongkui nodded and took out the dagger he carried with him.

It was the third watch when she returned home, her aunt left the door for her, and the three of them nested in the firewood room, Xie Yao found a basin, and rinsed the soil brought back with water repeatedly, and then all six eyes stared at the basin of water, Xie Yao found a piece of clean gauze, filtered it carefully, and then covered it, and said, "When you come over early tomorrow morning, buy some sulfur powder." ”

"Let's go back, it's almost four watches, and I have to go to the county government tomorrow."

The Liu brothers left, Xie Yao was busy for a day, hurriedly took a bath, and also fell asleep.

Before dawn the next day, the Liu brothers came, Xie Yao had just changed into a fast hunting suit, saw the two of them, and asked, "Did you bring it?" ”

"Brought it, brought it." Liu Zhongkui threw it to her and asked, "What should I do next?" ”

The three of them entered the firewood room and took out the basin of water, Xie Yao poured two packets of sulfur powder into it, and stared at the basin of water with six eyes.

There were tiny droplets of water floating on the water, and the more the water droplets floated, the water gradually changed color, and after a while, it completely turned into a basin of reddish water.

The Liu brothers looked at her in shock, waiting for her to explain.

Xie Yao said, "The soil I brought back yesterday contains a large number of Ming Xiao, which fell down from the second floor and was mixed in the soil. ”

"Mingxiao? You mean ......"

Xie Yao nodded, "That's right, the real cause of death of the restaurant shopkeeper was death from an overdose of Ming Xiao, arsenic is just a trick, so that everything can be explained, the teapot of the restaurant shopkeeper was poured into a large amount of Ming Xiao in advance, and the shopkeeper went upstairs to drink tea, and when Ming Xiao was poisoned, he was poured arsenic again, and the arsenic was just about to attack, and the person died, so the master did not see the clues when he performed the autopsy." ”

Liu Zhongkui said, "Then what if the shopkeeper doesn't drink tea upstairs?" ”

"Nope! He would have drunk it, and the breakfast that day would have been unpalatable, or very salty......"

Liu Zhongyuan suddenly understood, "You mean, someone moved for breakfast?"

Xie Yao stood up, put on his hat, and said, "Not only did he move his hands and feet, but this person who did his hands and feet was quite familiar with the daily life of the shopkeeper and knew that he liked to drink tea." ”

Liu Zhongkui nodded and agreed, "Indeed, when I went that day, I saw that there were six or seven jars of good tea in his house, and two of them were opened, so he must like to drink tea very much on weekdays." ”

While the three of them were talking, a middle-aged woman with slightly dark skin and a slender figure came out of the kitchen, saw the two of them, and said with a smile, "Zhongyuan Zhongkui is here, have you eaten breakfast?" My aunt cooked porridge and pickles. ”

Liu Zhongyuan said, "No, Aunt Ming, we still have urgent matters to rush to the county office, and we will come back to try my aunt's craftsmanship when we have time." ”

Xie Yao hurriedly took the saber and said as he ran, "Auntie, I'll go first, don't wait for me for dinner." ”