I am the Holy Poisoner, the Empress advised me to calm down

Chen Tianhua held the teacup and looked at the young man in front of him in a fancy suit, and couldn't help laughing.

"Are you sure he is a detective?" Chen Tianhua asked Lin Hao in a low voice.

Lin Hao coughed awkwardly: "He...he does have a license."

The guy in front of me who calls himself the "Gold Medal Detective" is named Zhao Dahai. He is in his twenties, wearing a pair of gold-rimmed glasses without prescription, holding a magnifying glass in his hand, and is "professionally" examining the teacup on the table.

"This teacup is very suspicious," Zhao Dahai said seriously. "Judging from the distribution of the tea stains, the murderer must be left-handed and has mysophobia."

Chen Tianhua rolled his eyes: "That's what I left from drinking tea just now."

"Huh?" Zhao Dahai was stunned for a moment, then immediately adjusted his attitude. "I mean, this shows that the murderer is very cunning and deliberately created an illusion to confuse us."

Lin Hao was practically losing his temper. He'd originally wanted to find a real detective, but through connections, he'd found this guy. Later, he learned that Zhao Dahai was actually the son of a certain corporate boss. He'd opened his detective agency purely as a hobby, and his main business was finding lost pets.

"Detective Zhao, we are talking about someone poisoning in the hospital, not the teacup case." Chen Tianhua reminded patiently.

"Right, right, right." Zhao Dahai quickly put away the magnifying glass and took out a small notebook. "I've been investigating for three days and have made a significant discovery."

"What discovery?"

"The murderer... should be a person."

Chen Tianhua almost choked on his tea: "Nonsense!"

"Moreover," Zhao Dahai continued proudly, "this person is likely to poison."

Lin Hao couldn't bear to watch it any longer: "Da Hai, can you say something useful?"

Zhao Dahai scratched his head. "I checked the hospital's surveillance footage, but there were so many that it made me dizzy. Then I asked the security guards, and they said they hadn't seen any suspicious people recently. I also checked the hospital's employee files, but there were so many people that I couldn't even count them all."

"So what have you done in the past three days?" Chen Tianhua asked.

"I'm thinking." Zhao Dahai said seriously, "Detective work requires inspiration, not impatience. I even went to a temple yesterday, hoping the Buddha can give me some clues."

Chen Tianhua was completely speechless. This guy wasn't a detective, he was just a clown.

"Forget it, let's investigate on our own." Chen Tianhua stood up. "Thank you for your help, Detective Zhao."

"Don't be impatient." Zhao Dahai quickly stopped him, "I still have an important clue that I haven't told you yet."

"What clue?"

“I found there were many doctors in the hospital.”

"..."

Lin Hao patted his forehead and said, "Dahai, go back. I'll treat you to a meal some other day."

"You really don't need me anymore?" Zhao Dahai said reluctantly, "I think I'm about to solve the case."

"No need." Chen Tianhua said firmly.

After sending this unreliable detective away, Chen Tianhua and Lin Hao looked at each other in bewilderment.

"Where did you find this funny guy?" Chen Tianhua couldn't help asking.

"His dad is a friend of my dad's. He said his son is a detective, so I..." Lin Hao was also helpless. "I thought a rich second-generation detective should have some skills."

"A talented second-generation rich kid wants to be a detective?" Chen Tianhua shook his head. "Unless he has a mental problem."

As the two were talking, the head nurse, Sister Wang, came over.

"Doctor Chen, what are you talking about?"

"Nothing, just looking for someone to help investigate the poisoning case." Chen Tianhua said truthfully.

"Investigation?" Sister Wang frowned. "Actually, I think this matter might not be that complicated."

"How to say?"

"I've been observing for the past few days and have noticed a strange phenomenon." Sister Wang lowered her voice, "Before every incident, there's always a security guard hanging around nearby."

"Which security guard?"

"It's the new guy, Li Xiaoshan," Sister Wang said. "He always shows up at critical moments, and his expression is strange."

Chen Tianhua's eyes lit up: "This clue is very important."

"I think so too." Sister Wang nodded, "But I'm not sure. What if a good person is wrongly accused?"

"Let's observe first." Chen Tianhua thought for a moment, "If it's really him, he'll reveal his true colors."

In the afternoon, Chen Tianhua deliberately wandered around the hospital, trying to find the security guard named Li Xiaoshan.

Finally, at the door of the emergency department, he saw a thin security guard standing there in a daze.

"Hello, are you Li Xiaoshan?" Chen Tianhua took the initiative to step forward.

The security guard raised his head, revealing a very young face, but with an indescribable melancholy in his eyes.

"Yes, what's up, doctor?"

"Nothing, I just want to know about the hospital's security situation." Chen Tianhua said casually, "Have you seen anyone suspicious recently?"

When he heard this question, Li Xiaoshan's expression changed obviously, but soon returned to normal.

"No, everything is normal."

"That's good." Chen Tianhua observed his expression. "How long have you been working here?"

"Three months." Li Xiaoshan's answer was brief.

"Where is home?"

"Yunnan and Guizhou."

Yunnan and Guizhou! Chen Tianhua's heart moved, but he didn't show it on the surface.

"It's a beautiful place with beautiful mountains and rivers." Chen Tianhua said with a smile, "What made you want to work here?"

Li Xiaoshan's eyes flickered: "Looking for a job is the same everywhere."

"That's right." Chen Tianhua nodded. "Then you go ahead and do your work. I'll go see the patient."

Back in the office, Chen Tianhua immediately looked up some information. Yunnan and Guizhou regions do have many people who understand poisons, as the area is home to numerous poisonous insects and plants, and traditional folk medicine holds a wealth of relevant knowledge.

"Could it be this Li Xiaoshan?" Chen Tianhua began to have doubts in his mind.

But suspicion alone is not enough, we need to find solid evidence.

Over the next few days, Chen Tianhua began to secretly observe Li Xiaoshan. He discovered that this security guard was indeed somewhat unusual. He always appeared at critical moments, and every time he looked at the doctor, he had an inexplicable hostility in his eyes.

"I think we should ask him directly." Lin Hao suggested.

"No, what if we alert the enemy?" Chen Tianhua shook his head. "We need more evidence."

The opportunity came soon.

That night, Chen Tianhua was on night shift. Around 2 a.m., he saw Li Xiaoshan walking past the emergency department with a small bottle in his hand.

"What is he doing?" Chen Tianhua followed quietly.

Li Xiaoshan walked to the hospital pharmacy, looked around, then took out a key and opened the door of the pharmacy.

"How does he have the key?" Chen Tianhua was even more confused.

A few minutes later, Li Xiaoshan came out of the pharmacy with the bottle in his hand obviously changed.

Chen Tianhua didn't act immediately. Instead, he waited until Li Xiaoshan left before entering the pharmacy to check. Sure enough, he found that the labels of several commonly used medicines had been tampered with, and the drug ingredients inside had been replaced.

"I see." Chen Tianhua understood the method of poisoning. "He achieved his goal by replacing the drugs."