The bad husband wanted to bring his second wife into the house, so I turned around and became his st

She took a deep breath, and the air was filled with a faint scent of sandalwood and a barely perceptible medicinal fragrance.

Lin Wanqing's eyes flickered over Su Yao's face before continuing, "My mother-in-law has been ill lately. I'm worried someone may have secretly poisoned her."

As soon as Lin Wanqing finished speaking, a look of surprise appeared on Su Yao's face, but it disappeared in an instant.

"Chronic poison?" Su Yao repeated softly.

She stood up, walked to the window, and pushed open the exquisitely carved wooden window. Outside the window was a bustling city scene, with people coming and going on the bustling streets, the hawkers' cries, and the children's laughter, forming a vivid picture of life.

"Yes, it's a chronic poison." Lin Wanqing nodded, his eyes filled with anxiety. "Senior, you are highly respected. I know that you are a skilled doctor, so I would like to ask for your help in investigating this matter."

Su Yao turned around and looked at Lin Wanqing.

A complex light flashed in her eyes, but was instantly covered by calmness.

Su Yao walked up to Lin Wanqing and said calmly, "Princess Sheng, you know that things in this world are often caused by karma. Since you have stepped into the disputes of this world, you must bear the corresponding consequences."

Lin Wanqing was stunned when she heard this. She didn't expect Su Yao to say such words to her, but the surprise only lasted for a moment, and Lin Wanqing returned to normal.

"What you said is true. Since I'm married to Lu Shengyuan, the old lady is my elder. Although I'm not related by blood, I feel like I'm her mother." Lin Wanqing said slowly, neither humble nor arrogant. "No matter what the cost, I will find out the truth."

Her words spoke loud and clear.

Su Yao looked at Lin Wanqing's calm face, and the corners of her mouth rose slightly.

"Princess Sheng is a blessed person. How about this, since you've given me so many gifts, I'll go with you." Su Yao walked to the door and suddenly turned around. "But I have to make it clear that there is a consultation fee."

Lin Wanqing was overjoyed upon hearing this. She didn't care about anything else and hurriedly bowed and saluted: "Thank you very much for your help, senior!"

Lin Wanqing returned to the palace with the vegetarian medicine.

Along the way, Lu Shengyuan and Lin Wanqing were extremely respectful to Su Yao and did not look down on her at all because of her simple clothes.

The carriage stopped in front of the palace. Lin Wanqing got off first, then personally reached out to support Su Yao.

Su Yao was not polite and took Lin Wanqing's hand and slowly got out of the car, looking up at the magnificent palace.

An imperceptible emotion flashed in her eyes, and a playful smile appeared at the corner of her mouth.

"This palace is quite magnificent." Su Yao said lightly.

Lin Wanqing's heart tightened, fearing that Su Yao might be dissatisfied, so he quickly explained, "Please don't blame me, Senior. I just hope that you can live more comfortably in this palace."

Su Yao glanced at her and said with a half-smile, "Princess Sheng, don't be nervous. I don't mean anything else."

After saying this, she looked up at the sky and said, "It's getting late. I'm new here, so I'd like to take a look around. I wonder where the palace's kitchen is?"

When Lin Wanqing heard this, his heart moved and he immediately understood Su Yao's intention.

She wanted to start with the diet and look for clues of poisoning.

"Senior, please follow me." Lin Wanqing led the way and headed towards the kitchen with the vegetarian medicine.

In the kitchen, the fire is burning brightly and the aroma is everywhere.

Su Yao walked in slowly, her eyes swept over the ingredients on the chopping board and the stew in the pot, and her brows furrowed slightly.

"These ingredients look fresh." Su Yao said lightly.

When the cooks and maids in the kitchen saw the princess bringing in a strange woman, they all looked at her curiously. When they heard Su Yao speak, they all lowered their heads and dared not say anything.

Lin Wanqing explained, "Senior, these ingredients are changed every day, and I personally check them."

Su Yao didn't comment. She reached out and picked up the soup spoon beside her, gently stirring the soup in the pot. Her nose twitched slightly, as if she was sniffing something.

Suddenly, she stopped and her eyes fell on a piece of medicinal herb at the bottom of the soup.

"What is this?" Su Yao picked up the piece of medicinal material with a spoon and looked at it carefully.

Lin Wanqing took a closer look and her face changed slightly: "This is... This is the nourishing herbal medicine I prepared for my mother-in-law."

"A tonic herb?" Su Yao sneered, "If used improperly, this herb can become a chronic poison."

Lin Wanqing's heart tightened. She didn't expect that there would be problems with the medicinal herbs she prepared herself.

"Senior, I prepared these herbs according to the medical book, how could it be..." Lin Wanqing was interrupted by Su Yao before he could finish his words.

"Medical books? Even medical books have mistakes and omissions." Su Yao put down the herbs and looked at Lin Wanqing sharply. "Although you have good intentions, you may not understand medicine."

When Lin Wanqing heard this, she felt guilty. She really didn't have a deep understanding of medicinal materials. She just followed the prescriptions in the medical books and didn't expect that there would be problems.

"Senior, what should we do now?" Lin Wanqing asked anxiously.

Su Yao pondered for a moment and said, "Stop using this herb for now. I want to personally take the old lady's pulse and diagnose her."

Lin Wanqing felt relieved when she heard this. As long as there was vegetarian medicine, she believed that her mother-in-law's illness could be cured.

At that moment, Lin Wanqing's brows were filled with solemnity. Without hesitation, she ordered the maid beside her: "Quickly ask the old lady to come to the kitchen and tell her that there is something important to discuss."

The maidservant responded and left in a hurry.

Su Yao stood there like a stone sculpture, her deep eyes scanning the kitchen, as if she wanted to carve every detail of every corner into her heart.

In the kitchen, the fire flickered slightly and the pots and pans were arranged neatly.

However, beneath this tranquil surface, there seems to be an unknown undercurrent hidden.

Su Yao's gaze lingered on the herbs for a long time, her nostrils flaring slightly, as if she was sniffing every breath in the air.

Soon, the old lady was carefully supported by two maids and walked into the kitchen.

Her face was pale, and her eyes revealed a trace of fatigue and weakness. It was obvious that she was suffering from the illness. Seeing Lin Wanqing, the old lady forced a smile on her face: "Wanqing, you called me here in such a hurry, is there something wrong?"

Lin Wanqing hurried over, holding the old lady's other side with both hands, and said with concern: "Mother, please sit down and rest for a while. This is Senior Su Yao, she is a well-known doctor in the world, and she has come here specially to treat you."

The old lady didn't say much, but just nodded slightly and gestured to Su Yao.

Su Yao walked forward, her fingers gently placed on the old lady's wrist, she closed her eyes and concentrated. The kitchen was silent, with only the occasional crackling sound of the fire.

Everyone held their breath, afraid of disturbing Su Yao.

After a moment, Su Yao opened her eyes, her brows slightly furrowed, as if she was thinking about something. She turned her head to look at the medicinal herbs, and a sharp light flashed in her eyes.

"These herbs are actually top-grade warming and tonic herbs, but if taken long-term in a specific order and proportion, they will form chronic toxins." Su Yao's voice was low and powerful. "If it's an ordinary prescription, there will be no problem."