"Let's start with the three people in the teahouse, this is just one side of this case. Zhao Wu'an spread out the account book, lowered his brows, and said unexpectedly.

"First of all, Cheng Lu. As the running hall of the teahouse, since three o'clock in the afternoon, the water room has been in and out of the front and back yards to bring tea to the tea guests. The other two runners had been serving the guests, but they had never entered the backyard. It can be said that you are the only one who has the opportunity to poison Jiang Longyi's Gu Zhu purple bamboo shoots and put the tea in front of him. ”

The young man who was named was suddenly stunned, and then raised his hand in panic, and cried: "It's not me, it's me!"

"Of course, it won't be you. Zhao Wu'an shook his head.

Cheng Lu was stunned again, his eyes widened in a daze, and he didn't understand what Zhao Wu'an meant for a while.

"You're just the one who has the best chance of being poisoned, but you're the one who has the least time to poison. Although there are few customers in this shop, there are only three people in the hall, and you are the only one who goes in and out of the backyard to get tea. Judging from the testimonies of others, you did not disappear for no reason between 3 o'clock in the afternoon and 5 o'clock in the afternoon, and almost all the guests received the tea they had ordered. If you want to take another cup of Gu Zhu's purple bamboo shoots from the shopkeeper Jiang without attracting the attention of the two people in the water room, and then go to a place where no one is paying attention to poison, then hand it to the shopkeeper, and then return to the teahouse, the time it will take will definitely not be short, and there will be no chance of poisoning. ”

The head of the chamber frowned and said, "It's that simple, if he is quicker, it is possible that he will be poisoned unnoticed, right?"

"No, it won't. The water room was only covered by mist, but two of them were not blind. In order for Cheng Lu to get the tea as soon as possible, they would definitely bring the things that the guests wanted to the door, and Cheng Lu would take it and leave—and at this moment, it was impossible for Cheng Lu to take away the Gu Zhu purple bamboo shoots on the table.

Taking a step back, even if Cheng Lu took the tea, he must be holding the tray in both hands at this time, and if he wants to poison the cup, he has to find a place to put things down. There was no trace of anyone entering the two utility rooms opposite, and Cheng Lu could only put the tray on the ground at most, and at this time, he only needed to see if there was any dust on the back of the plate in his hand. Even if he could wipe the bottom of the plate clean with the cloth on his shoulder, he would not have time to wash the cloth. In any case, traces are bound to be left behind. ”

Zhao Wu'an tilted his head slightly, and the head of the carriage quickly reacted, and ordered a Jin Wuwei standing next to Cheng Lu: "Go and check!"

That Jin Wuwei was ordered to untie the cloth on Cheng Lu's shoulder, and after checking it several times, he shook his head.

Cheng Lu breathed a sigh of relief, and Zhao Wu'an had already continued: "In the same way, Zhang Chu and Lu Shuangquan have no time to commit crimes. It has nothing to do with whether the fog in the water room is thick or not, and whether they have time to poison it. In fact, it was Cheng Lu who helped them eliminate suspicion. ”

Everyone turned their eyes to Cheng Lu, and Cheng Lu, who had just breathed a sigh of relief, suddenly became nervous again: "Me?"

"Why did you find the shopkeeper's body in the first place?" asked Zhao Wu'an.

Cheng Lu said nervously: "I, that is, there was a guest who wanted to add some tea, so I ran to the backyard, and when I passed by the door of the shopkeeper, I found that the shopkeeper was sitting on a chair, his head tilted to the side, and his appearance was a little weird." I shouted twice and there was no answer, so I went up and probed, only to find that the shopkeeper had ......."

"Then you went straight back to the bookkeeper. Zhao Wu'an said unhurriedly.

"Yes, yes. Cheng Lu nodded hurriedly.

"Throughout the case, Cheng Lu has always been the person who enters and exits the yard most frequently, and the two people in the water room don't know when he will come in, so they don't have enough time to commit the crime, which is one of them. Second, and most importantly, when Cheng Lu went, the door of the shopkeeper's room was open. ”

Zhao Wu'an reached out and dipped it in the tea, drew a square on the table with one side opening, and drew a narrow and long square in it. Next to the large square, he drew an open square with a similar shape.

"This one represents the water room, and the one in it is a stove with eight cauldrons. Zhao Wu'an ordered the narrow rectangle he had just drawn, "Zhang Chu is an old man in the teahouse, and he has been busy making tea cakes all day long. After he made Gu Zhu's purple bamboo shoots, he put them a little outside, hoping that Lu Shuangquan could send them after they were a little warmer. I found a round stain in the water room, which means that there is indeed a cup of tea that has been sitting there for a long time. From the perspective of poisoning, Zhang Chu and Lu Shuangquan both had the opportunity to do it, and it stands to reason that Lu Shuangquan should have given the tea directly to Jiang Longyi, but coincidentally, neither of them admitted that they had ever sent the tea out. The implication is nothing more than that this tea ran to Jiang Longyi's table. ”

"This ......"

The people in the teahouse looked at each other.

"Of course, tea can't grow legs on its own. And the unclosed door proves that this cup of tea was not sent by them. That said, I don't think they're lying. Zhao Wu'an said seriously, "The person who really took this tea is Jiang Longyi himself." Soon after he ordered Zhang Chu to make tea, he returned to the water room, and the busy two did not notice him, so he took the tea that was placed on the outermost part of the stove and returned to his room. The so-called process of 'tea cup disappearing' is actually as simple as that. ”

The head of the box was puzzled: "How do you know that Jiang Longyi took it himself?"

"If I were any of the three trying to poison my boss, I would have closed the door after the tea had been brought to his bedroom. First, it is a sign of respect for the shopkeeper so that I will not be suspicious of the person I want to poison, and secondly, it will prolong the time for him to be discovered, so that I can make myself safer. Jiang Longyi's bedroom is very well lit, and the large window is facing the small courtyard, and any of his subordinates should close the door when they send the tea. There can only be one reason for not closing the door, that is, Jiang Longyi entered the room with tea in both hands, and there was no time to close the door. ”

"But even if it was Jiang Longyi who took the tea, Zhang Chu and Lu Shuangquan would have plenty of time to poison it!"

"Yes, but if they want to poison them, they must hide them beforehand. Both of them did not move half a step in the water room, and they only had to search their bodies and thoroughly inspect the water room to determine whether they were carrying a container containing drugs. If they can't find it, then it's not them who poisoned it. ”

"Container?" the chamber chief was stunned.

"The poison added to Gu Zhu's purple bamboo shoots can cause plants and trees to wither, and it is common sense to think that it will probably be a poison like 'paraquat', but after taking paraquat, it is not the reaction of the shopkeeper, he died too quietly. Zhao Wu'an said, "The shopkeeper died of another strange poison called 'Red Crisp Hand', and the poisoned person will be surprisingly quiet at first, and then slowly lose his breath, and finally show the symptoms of bleeding from the seven orifices. After the toxins circulate around the body, they gather and pour into the fingertips, making the ten fingers blood-red, so they are called red crisp hands. This poison is a liquid, which can only be contained in a porcelain bottle, and cannot be easily disposed of, so I said that it will definitely leave traces. ”

Everyone was dumbfounded, and the head of the box was surprised: "How do you know this?"

"I've drunk it before, but I didn't die by luck. Zhao Wu'an calmly overshadowed everyone's surprise.

"It was precisely because the door of the shopkeeper's room was open that all this was established, and I shifted my attention from the three most suspicious miscellaneous people to others. Zhao Wu'an continued, "Bai Xinyi, Liang Shi, Lu Zhongzhou, all three of you entered the backyard during the time period when the shopkeeper died, and the reason was that you all went to the thatched house. I still don't know much about the poison of the red crisp hand, nor do I understand how long it will take effect, so I can only assume that you are all equal suspicions. In this case, I can't tell who the murderer is, but there are some clues that point to someone who makes me suspicious. Before that, I plan to restore the truth about the period before the death of the shopkeeper Jiang.

"Jiang Longyi's bedroom is simply furnished, but it is not simple. Obviously, it is more convenient to sit at the table and do anything, but his golden silk nanmu chair is a distance away from the table, and he has to reach out hard to touch the tea on the table. For no reason, he certainly wouldn't have placed his chair so far away from the square table. Also, knowing that this was the busiest time for the teahouse, he even ordered the two teahouses to spare their hands to make him a cup of tea, which seems a little unsympathetic, right?"

The elderly Zhang Chu bit his dry lip, shook his head and said, "That's not what I said, the old man usually doesn't ask us for tea......

"Yes, so why did he suddenly ask for a cup of tea at this time, but he refused to put it in his hand?" Zhao Wu'an spread out his hand and said lightly, "Compared to the table, his chair is closer to the bed. If suppose his wife sat on the edge of the bed and talked to him, the scene suddenly made sense. The only thing that is unreasonable is that he only needs a cup of tea, right? Generally speaking, the shopkeeper Jiang should always make another cup for the guests. ”

"......Guest?" the captain gasped.

"That's right. The reason why Jiang Longyi suddenly asked for tea and personally brought the tea away, before he closed his door, he specially moved the chair to a place that was not very convenient for him. All indications tell me that in the last moments of his life, he was not alone in that room. Moreover, in order not to let the people in the courtyard see, he sat on the edge of the bed, and Jiang Longyi used his chair to block the view from the courtyard for him. In this way, they realized a small secret conversation. And when the visitor pushed the door open again, Jiang Longyi had already died of the poison in his tea. ”

"This can't be! Even if a guest comes, how can you poison him in front of him?" the captain shook his head suddenly.

"This has to do with what the secret conversation is about, and what is the existence of this guest to Jiang Longyi. Zhao Wu'an said word by word.

"What do you mean?"

Suddenly, a crisp female voice participated, Zhao Wu'an was stunned, looked in the direction where the voice came from, and found that Bai Xinyi, the eldest lady of the Bai family, who had been bored looking around before, was actually staring at him intently at this time.

These so-called eldest ladies of the boudoir show are much more upright than he imagined.

Zhao Wu'an couldn't cry or laugh, so he had to continue: "If it were an ordinary guest, Jiang Long would be the shopkeeper of the teahouse, so he would not be reluctant to even give up a cup of tea for the guests, right? ”

Bai Xinyi excitedly waited for Zhao Wu'an's next words, and the Jin Wuwei who were present did not dare to breathe loudly.

Or both. Zhao Wu'an's voice was so cold and hard that it didn't fluctuate.