An Ruyou brought that strand of hair and headed towards Mr. Li Taian's residence.

Tian Lin seemed to have something to take care of and went out, leaving Li Taian alone at home.

"Master, where did Tian Lin go?"

Li Taian said, "Ever since he helped the police with their cases, he has performed very well. Now that he has been promoted, the number of cases that he is needed to assist is even greater, and now, he has gone back to handling cases."

"Tian Lin is really powerful," An Ruyou sat on the sofa and took out a strand of hair wrapped in plastic from her bag and placed it on the table. "Master, one of my friends' grandfather suddenly got sick, but to me, it seems like he was poisoned. Can you help me see the reason?"

Li Taian took that hair of his and looked at the light, then brought it under his nose to smell, "It's trace arsenic, and needs to be accumulated in the human body for it to be able to burst out. It seems that it is not too far away from the human body's critical point."

An Ruyou said, "I think so too, but I can't find out the exact cause of the poison. Master's eyes are sharp as expected, he was able to determine arsenic in one glance, it would be much easier for me to cure him."

Li Taian nodded, "For you to be able to save the world like this is truly great."

"Master, I have something that I don't quite understand."

"What is it?"

"Why didn't the hospital find out?" An Ruyou said, "I have read the hospital's diagnosis certificate, there are no toxicology related tests in there, ordinary people would not be able to understand, but the medical personnel would definitely not be able to see such clear traces of poison!"

Li Taian replied, "Actually, it's not impossible. The poison we encounter in our lives only hurts people once, and it hurts the person who takes it. Most of the doctors and nurses had never really seen what kind of harm the accumulation of micro-doses could cause to the body, so they would never think about it. Furthermore, since the patients are already old, they will naturally think first about the complications of some common geriatric diseases. "

An Ruyou nodded, "Perhaps I was overthinking it!"

Li Taian said, "The current society's medical system is very complete, with many aspects of the rules governing the hospital, it is almost impossible for them to hide anything from each other, but as for the actual situation, we are not in a position to make a decision yet, so we will wait for you to observe for a while before deciding!"

"I'll pay attention."

After obtaining the confirmation from Li Taian, An Ruyou now had complete confidence in being able to cure Old Master He's poison. She closed her eyes and carefully recalled the detoxification method in the Silver Needle Medical Arts.

An Ruyou could not help but exclaim at the greatness of the silver needles. In the books, there were different methods of detoxifying the poison according to the age and body of the infected person. The greatest method was to detoxify the poison and it would not burden the body of the infected person too much.

An Ruyou searched around and found a method that was suitable for the Old Man He's detoxification process. It was suitable for elderly people who had weak bodies, the acupoints that needed stimulation all had the effect of promoting blood circulation and dissipating blood stasis. At the same time of detoxifying the poison, it could also improve the elderly's condition.

After confirming the time with He Chengyu, An Ruyou left for the hospital.

After lunch, the nurse had four hours of rest, during which only family members were allowed into the patient's room. When An Ruyou arrived, the only people in the ward were and Old Man He.

After entering the room, An Ruyou carefully closed the door and drew the curtains. After finishing a series of tasks, she sat down beside the bed, "Gen Ho, help me hold up Grandpa He."

He Chengyu helped Grandfather up, and following An Ruyou's instructions, the back of Grandfather's neck was exposed.

The first needle had to be placed on the cervical spine, which was the only way for the brain to connect the limbs. Cleaning the toxins here first could help detoxify the body faster.

As soon as the silk-thin needle stabbed in, it became suffused with azure light.

He Chengyu naturally saw this change as well. His heart was shocked as he watched An Ruyou's following actions seriously.

Following that, An Ruyou placed the silver needle on Old Man He's palm. At his ankles and his navel, the needles that were glowing with a green light gradually turned jet black.

"What poison is this? Why is it so powerful?"

An Ruyou said, "Your grandfather had been poisoned by arsenic. Although the amount is not much every day, it has been accumulating in his body for a long time now, so this first detoxification could only be done in a part of his body. If the poison in the old man's body was directly purged, he wouldn't be able to take it."

An Ruyou removed the black silver needle, a bit of dark red blood flowing out from the wound. The red qi that had been lingering on Old Man He's face slowly disappeared.

His breathing became steady, and his heartbeat stopped beating as fast as it could.

He Chengyu extended his finger and stained it with black blood. After opening his finger, he placed it under his nose. The smell of blood was very faint, but more of a strange and sweet smell.

"Is this arsenic?"

An Ruyou nodded her head, "The only thing I can do is to draw out the poison, and then remove it bit by bit from Grandpa He's body. You might not understand, this dosage is extremely dangerous, if not for us finding out in time, I'm afraid that Grandpa He would not even have had a chance."

He Chengyu wiped his hands, "Thank you so much, Ru Lang, if not for you, we would have been kept in the dark waiting for grandfather to wake up!"

"Have you thought of anyone suspicious?"

He Chengyu shook his head in distress, "I've checked them one by one, ever since they entered the He Family, I can't find anyone that could possibly hurt Grandfather."

An Ruyou said, "Maybe we should change our perspective. Have you thought about it, maybe someone knew that one of them worked for the He Family, so they placed this kind of thing in items or food that he was in charge of purchasing, allowing the Grandpa He to inhale them when he didn't know it."

He Chengyu said, "If that is the case, then maybe among them, there will be people who had a reaction after inhaling, but their body functions are better than Grandfather's, so they have not displayed any symptoms."

"You're right. Perhaps if I were to meet them, I'll be able to see what's going on." An Ruyou agreed with He Chengyu's words very much.

"Come visit me at home after work today!"

"Alright."

On the same day, after closing time, in order to complete the set, He Chengyu specially went to An Ruyou's office to make an invitation. Although An Ruyou wanted to laugh, she still solemnly agreed to his invitation and sat in He Chengyu's car to leave the company.

Kong Xiaomi was dumbstruck, "Anzhong and Gen Ho, are they just getting closer to a good thing? I have a feeling that there is a strange atmosphere around them. "

Zhang Minzhi also looked thoughtfully at their departing figures, "They might be in love! That's why they have such tacit understanding. "

Kong Xiaomi nodded her head vigorously, "I think so too, Anzhong is beautiful, and also extremely capable, more than enough to match with Gen Ho."

This was the first time An Ruyou had seen the legendary He clan.

This villa was almost located in one of the most valuable areas of the city. It looked to be very low-key, with a thick and heavy wall like a tiger wrapping around one-third of the walls. When He Chengyu's car got closer, the door automatically opened.

He stopped the car, and immediately a servant came to receive He Chengyu's briefcase, "Young master has brought a guest here, why didn't you say so earlier, we can prepare some food that a girl would like."

An Ruyou laughed and said, "No need, I'm not picky with food."

He Chengyu explained, "My grandfather's blood sugar is a little high, so my family doesn't eat sugar."

An Ruyou said, "This method is really healthy."

He walked deeper into the villa. The antique pear wood furniture exuded a faint wooden fragrance. The room was burning with a fresh incense that was giving off faint smoke.

"What kind of fragrance is this? It smells like I'm in a pine forest."

He Chengyu said, "This incense is called Hundred Li Pine Forest, if you like it, I'll get someone to bring it back for you later."

"Sure." An Ruyou promised. This incense's smell was fresh, but it was not cold. It carried a hint of sweetness with it.

Using the reason of visiting the house, An Ruyou walked a large circle around the house. When He Chengyu asked her if she had found anything, An Ruyou just shook her head: "It's too weird, the house is very clean, there isn't even a trace of arsenic."

He Chengyu frowned, "Let's go to the kitchen to see what we have to eat today!"

"Sure."

"Why did the young master bring the customer to the kitchen?" A fat aunt said.

"Let's see what we can eat later. Please don't mind us. Let's continue cooking!"

An Ruyou could tell from the water, but water was still normal water. Furthermore, because she had a water purifier on her body, it was even cleaner than normal water.

The fruits and vegetables were only exuding a healthy scent, so there was nothing strange about them.

"That's impossible!" An Ruyou almost doubted her previous guess.

"Young master, it's time to eat. Quickly bring the guests to the dining hall!"

He Chengyu and An Ruyou could only walk towards the dining hall.

Passing by the censer case, He Chengyu suddenly stopped, and said, "If grandfather is there, he would personally serve the incense before every meal."

An Ruyou looked at the few remaining joss sticks left, "Come and give us some incense, you can't just leave the joss stick empty, there's an old saying that there's no end to it!"

He Chengyu said, "Alright!"

He picked up the small scissors on the case and cut off the incense before extinguishing it. He Chengyu then used a small spoon to dig out the incense and threw it into the trash can beside him.

The subtle changes in the airflow brought about a strange smell.

"Don't move!" An Ruyou took the spoon and put it under her nose to smell the familiar smell of arsenic.

"Will the cinders always be changed?"

Looking at An Ruyou's nervous expression, He Chengyu basically understood what she was feeling nervous about, "Yes, the scented dust is lighter, cleaning is extremely troublesome, and if someone came over, they would bring the scented dust, so grandfather bought some flower soil to place in the censer."

An Ruyou nodded her head, "The thing we are looking for, is in the flower grounds."

He Chengyu's expression turned serious as he said in a low voice, "Normally, only grandfather would do such a thing, which means that this person not only has a clear target for Grandfather, he also has a very good understanding of my family's situation."

An Ruyou comforted him, "Perhaps I came here occasionally, and it wouldn't be difficult for me to notice this habit of the Grandpa He's.