"Oh, the circumstances of Cornell's and Eva's deaths were completely different. Two toxins were found at the scene. I think you, senior, are familiar with toxic chemicals, so I came to ask you for advice." Annick gave a reliable explanation.

.

"Okay, why don't you go to my own room? The reception room is a bit cold."

Deidara came up with the idea that the assassination targets were all in front of him, so he might as well take the opportunity to try it out.

"Okay, I won't disturb you."

"No, there are no classes in the afternoon anyway."

"Then excuse me, little Bell, let's set off."

As an assistant professor, he naturally has the right to live independently in a separate faculty apartment.

Annick followed Deidara through many detours to his apartment. The apartment Deidara chose was very remote, facing the school's artificial lake, and the nearest apartment was more than fifty yards away.

"Senior, your apartment is really far away."

"I usually like a quiet environment. You know the most annoying thing about being disturbed when doing experiments." Deidara explained.

"Understood, let's go in and talk."

Deidara's apartment was neater and simpler than expected. Apart from the most common furniture, there were no decorative paintings or anything like that.

A bookshelf in the hall was pushed open, revealing a wooden cover. After Deidara pulled the cover open, it revealed steps leading to the underground.

"Here, because I don't like visitors to touch my test supplies, and many chemicals are toxic and corrosive, so I put the laboratory in the basement."

Annick seemed to agree with his statement and added: "The ventilation in the basement is not convenient."

"It's okay, just keep the windows facing up."

"Okay, little Bell, please wait for me here. I will talk to Professor Deidara in half an hour and then I will talk to you in detail."

"Okay Mr. Annick."

Deidara's underground laboratory made Annick feel as if he had returned to Earth. Not only were the tables filled with familiar glass instruments such as alcohol lamps and beakers, but the wooden cabinets were filled with various medicines.

For labels, some medicines that are sensitive to light also use brown glass bottles.

Annick admired sincerely: "Wow, senior senior, not only do you have all the medicines, but they are also neatly organized."

"It's just obsessive-compulsive disorder. A chemist relies on these for a living." Deidara pulled out two high stools and sat down on one of them.

"Sit down. I'll get straight to the point and ask, what do you want to ask me?"

Annick sat on the stool and said: "Connell and Eva died in the lounge, the same lounge where Eva and you were in the night before yesterday."

Deidara took out a cigar from the drawer, lit it and started smoking. It was obvious that he was not used to this kind of tobacco, and he choked out.

"Ahem, you want to say that I am suspicious?"

Deidara put down the cigar in his hand and looked at himself seriously. Annick explained: "No, you have no motive, and I told you that I just came to ask for some professional knowledge from you, Professor."

"Ahem, then why don't you ask?"

"We investigated the scene and found a yellow-white crystalline powder in a bottle in the women's bathroom. We suspect that Eva used this substance to poison Cornell by putting it in the wine."

Deidara took a pen and paper and quickly wrote down, "Yellow-white, lens, soluble in alcohol, poisonous." After finishing writing, he said:

"There is not enough information. There are hundreds if not thousands of such substances. What was the state of Cornell's death?"

Annick recalled the condition of Cornell's body yesterday. "The eyes were closed tightly and the hand was clutching the heart, as if he had died of a heart attack."

“Are there hallucinations as a side effect of inducing heart disease?”

"I think so."

"That's organic matter and it can cause a decrease in potassium ions in the blood. I think it should be toxic glycosides, such as digoxigenin, lycoside, and digitonin."

Annick nodded, and then asked: "I understand the toxins in the wine, but there is another toxin that I may need to ask about."

"you say."

"Actually, I've already guessed what the toxin is. I just wanted to ask you how to make it." Annick pointed at the Deidara cigar and said.

"Cigar? How can this thing kill people?"

When Deidara finished saying this, Annick made a decision.

"Nicotine is very poisonous, and it can be easily produced by a professional chemistry professor."

When Deidara heard this, he put down the cigar in his hand. He walked to the medicine cabinet and took out some medicines one after another. Then he said:

"Indeed, if you don't pursue extremely high purity, you can first use sodium hydroxide solution to dissolve the nicotine solution in tobacco in the laboratory. Then extract it with ether, evaporate the ether, redissolve it, and prepare the derivative again.

Crystallization can produce higher purity nicotine salt.”

Deidara's speech just now was tantamount to self-destruction, but Annick knew very well that these alone were not enough to convict him. Any senior chemistry teacher could say these remarks. After thinking about it, Annick decided to continue with the story,

Moreover, I knew that the other party also knew the purpose of my visit this time.

"We traced these cases and came to an interesting conclusion. In the butcher's murder case last Wednesday, there was a witness disguised as a poor man at the scene. He was probably about the same height as you, old senior."

"Oh, really? But there are many people as tall as me in Eggsburg, and the word disguise is not appropriate. There is no law in the kingdom that says that all witnesses of a murder must wait for the police to come." Deidara

He replied without any fluctuation.

"Of course, witnesses are only obliged to cooperate when the police come to their door. Oh, the butcher Ernes, the coachman Jeffrey, the business tycoon Cornell, and the noble lady Eva in several consecutive cases have no imagination.

Get in touch, old senior, do you want to know?"

"No, if you want to talk, I don't mind understanding you." Deidara said while tugging on his bow tie.

Taken the bait! When people lie, they always make some subconscious little moves that they wouldn’t normally do. Annick continued:

"We discovered that this group of people, whether voluntarily or involuntarily, were playing an assassination game similar to Ouroboros. The butcher Ernes was going to assassinate the coachman Jeffrey, and the coachman Jeffrey was going to assassinate the tycoon Kang

Neil, the tycoon Cornell needs to assassinate the noble lady Eva. What’s funny is that these people were all killed for some reason. I wonder who Eva wants to assassinate?”

"Really? From Ouroboros to Reverse?"

"I think so. Following this logic, if you find out who Eva wants to assassinate, you should be able to find out who put the poisonous needle into Eva's wallet. By the way, senior senior, you only learned to smoke recently.

Bar."
Chapter completed!