After becoming pregnant, the cold-hearted nobles all went mad.

When Qing Le learned that Shen Lingyi was going to take her to rescue someone, she was surprised for a second, but then agreed.

"Your Highness, don't underestimate Qing Le."

Xu Yanqing frowned. "He's barely a teenager. Does he deserve to be called a miracle doctor?"

Qing Le stood timidly to one side, not daring to raise his head in front of such an important person; in his opinion, this showed a lack of courage.

Since bringing Qing Le back to her residence, Shen Lingyi has treated her with the utmost care in terms of food.

The beggar who used to be skinny and barely had any meat on his bones has now gained weight and his face is round. He's not old to begin with, and with such a round face, he looks even younger.

"Back then, the plague in Liangzhou was so severe that even the most experienced imperial physicians were helpless," Shen Lingyi raised an eyebrow. "Qingle resolved such a difficult situation with a single act. I wonder if His Highness the Crown Prince is worthy of such a title?"

Xu Yanqing looked surprised. He knew very well what had happened in Xuzhou, after all, he was there at the time.

However, the plague was beyond his control.

Even if Xu Yanqing wanted to make a name for himself, he wouldn't risk his life.

Later, he heard that the plague had been solved by a goddess, and he wondered for a while who this "goddess" was.

"So, he must be acquainted with that goddess of Wushan?"

"The Goddess of Wushan?"

Xu Yanqing didn't suspect her and explained calmly, "The people of Liangzhou are calling her 'Goddess,' because she solved the plague that even the imperial physicians couldn't cure. That's why she's loved by the people, and even His Majesty has personally praised her for 'having the common people in her heart and saving the world in plain clothes.'"

Shen Lingyi paused for a second or two; she really didn't know that.

According to the laws of the Great Wei Dynasty, military officers, unlike civil officials, were not required to report for duty every day. Shen Su, being afraid of trouble, only went to the palace once every two weeks.

Therefore, military officers are always the last to know any news in the imperial court.

Fortunately, Xu Yanqing knew that the most urgent matter was Princess Su, so he didn't pry too much.

Half an hour later.

In the bedroom of the Prince's mansion, Qingyue finished taking the pulse of the unconscious Princess Su and slowly lowered her hand.

Xu Yanqing asked urgently, "How is my mother now? Can you treat her? If you need anything, just tell me."

The only person who could make the usually aloof and arrogant Crown Prince become like this is Princess Su.

Qing Le was a little startled, and after sorting out her thoughts, she slowly answered his question.

"The princess's fainting spell was likely due to poisoning; I found signs of long-term poisoning in her body."

"I have never seen this poison before. Fortunately, the poisoning was not severe, so it must have been recent. It can be eradicated gradually."

This was an answer Xu Yanqing had never considered.

Princess Su herself held a high position and wielded great power. After Xu Yanqing was selected from among the princes and his name was changed to make him the crown prince, the status of the prince's mansion rose steadily.

Looking at the many powerful and prestigious families in Beijing, it wouldn't be an exaggeration to say that they were like oil being poured on a hot fire.

However, the princess, who was staying in the palace and rarely went out, was poisoned.

"I hereby order a thorough investigation of the entire Prince's residence. I want to see who dares to be so audacious."

Xu Yanqing was furious, and the servants in the mansion suffered as a result.

Everyone was summoned and questioned by the manager, especially those who had recently gone out to make purchases; they all wished they could kneel down and beg for mercy.

The steward snorted coldly, walked around in front of the crowd, and said, "Don't blame me for not warning you. Whoever did it, come out right now, or you'll be in deep trouble if the Crown Prince finds out!"

"Steward Sun," someone pointed directly at a maid, "I saw Hongxiang acting suspiciously a few days ago, so I followed her and found that she actually went to Wuyi Lane."

The maid named "Hongxiang" panicked, and a ruthless look flashed across her face.

By the time Steward Sun realized what was happening, it was too late.

Xu Yanqing looked at the corpse dragged before him by the steward and said displeasedly, "I told you to investigate properly, and this is how you investigate?"

"Your Highness, please forgive me." The steward knelt down and kowtowed, tears streaming down his face.

Everyone in the Prince's mansion knows Hongxiang, the maid. She was sold to the mansion by a slave trader a few months ago. She wasn't born into the family, but she was clever, quick-witted, and very likable. Even the Princess loved her dearly and often summoned her to tease her.

Upon hearing this, Shen Lingyi couldn't help but ask, "Did you only arrive at your residence a few months ago?"

The steward hurriedly said, "Yes, who would have thought that a little maid could be so ruthless... She's only just reached the age of marriage. If this hadn't happened, I would have been thinking of pairing her with my son."

Shen Lingyi looked at Xu Yanqing, her tone resolute.

"This person is after the Princess Consort. Your Highness should perhaps give the household a thorough purge."

Xu Yanqing had also thought of this. Since the fire, Wuyi Lane had become increasingly deserted, not to mention that it was originally inhabited by some captured bandits and criminals, and had all kinds of poisons and sleeping potions.

However, getting in is extremely difficult. Unless you have someone who knows the ropes to guide you, even if you send troops to fight, you will only find that the houses are already empty.

Hongxiang could never have entered and exited Wuyi Lane on her own, and that slave trader was also highly suspicious.

Just as he was about to severely punish Steward Sun, Princess Su woke up.

"Yan'er is back." Princess Su's voice was thick with hoarseness.

Xu Yanqing's eyes were slightly red. He squatted down by the bed, not caring that his brocade robe was dirty. "Mother, I will definitely find out who harmed you and make that person suffer a terrible death."

Prince Su has long since passed away, and Xu Yanqing has only his mother, with whom he has depended on each other for many years.

It's no wonder that this usually dignified and upright Crown Prince was so enraged upon suddenly learning that someone wanted to harm his mother.

Princess Su coughed twice, offered him a few words of comfort, and then saw Shen Lingyi waiting beside her. A look of surprise flashed in her eyes.

"Ahem, ahem, Yan'er has even invited Miss Shen the Second. Miss Shen, please have a seat. Someone, bring tea."

Xu Yanqing quickly helped her up, saying, "It's nothing, your son can handle it."

After giving instructions to the servants, he turned back and glanced at Shen Lingyi, seemingly wondering why she was getting so close to his mother.

Princess Su called Shen Lingyi over to talk, even leaving her own son aside.

Shen Lingyi, with her sweet words and ability to coax, amused the princess, who had been in a coma for many days and was in a depressed mood, and she said to Xu Yanqing, "I now realize how wrong I was before."

"If you two still have the intention, I will not stop you."

When Shen Lingyi was relentlessly pursuing Xu Yanqing, Princess Su, though she had never met her, only heard the rumors circulating in the capital and heard whispers from Shen Tingjiao, and thus disliked her quite a bit.

Several times, Shen Lingyi tried to go to the Prince's Mansion to look for someone, but was ruthlessly driven away by the Princess.

In the end, she never even saw Xu Yanqing again. At the time, the princess thought she had done the right thing, but now she regrets it.

Xu Yanqing clenched his fists, which were hanging at his knees, his eyes filled with darkness, yet he couldn't help but look forward to how Shen Lingyi would respond.

Suddenly, a servant rushed in and said, "The eldest daughter of the General's Mansion has arrived and wishes to see His Highness."