Lanqin was shocked and could hardly believe her ears. She stumbled to Hongli's bedside, touched his face and then his hands, and muttered to herself, "How could he be poisoned? Hongli is perfectly fine. Who poisoned him?"

Lanqin turned to everyone in the room and sternly rebuked them: "Listen up, all of you! If I discover that Hongli was poisoned by the prince, none of you will escape punishment..."

Upon hearing this, everyone was so frightened that they became incoherent, kowtowed and begged for mercy, and burst into tears.

Lanqin had never lost her temper like this before. She gritted her teeth and shouted angrily, "Shut up!"

The room fell silent for a moment. Lanqin turned to the imperial physician and said, "Summon all the physicians from the Imperial Hospital to treat me. Use the best medicines. Do everything you can to bring Hongli back to safety..."

"Yes, yes, yes... This servant will take care of it immediately..."

Lanqin was anxious, gripping Zuanli's hand tightly, repeatedly muttering to herself, "How could he be poisoned? How could he be poisoned?"

"Poisoned? Hongli has been in the palace the whole time, only going to the Prince's study and the Imperial Study. How can you say he's been poisoned?" Fourth Prince said as he pushed open the door.

Hearing the Fourth Master's voice, Lanqin felt much more at ease and looked up at him with tears streaming down her face.

The servants who were kneeling on the ground, upon hearing that it was the Fourth Prince, hurriedly turned to him and shouted, "Greetings, Your Majesty! Long live the Emperor! Long live the Emperor!"

The Fourth Prince ignored the others and went straight to Lanqin's side. He helped the heartbroken Lanqin up and comforted her, saying, "Qin'er, don't worry. I'm here. Everything will be alright..."

The Fourth Prince released Lanqin to examine Hongli, his heart sinking as he turned to ask the imperial physician, "Can Hongli be diagnosed with poisoning?"

The imperial physician hurriedly knelt on the ground, nervously replying, "Your Majesty, based on the prince's pulse, I cannot find any symptoms of illness. There is only one conclusion: poisoning. Your Majesty, please examine the prince's lips. In ordinary cases, they would only turn pale, but the prince's lips are bluish-black. It can be concluded that the prince has been poisoned..."

The Fourth Prince examined Hongli closely and found that Hongli's face was pale, his lips were bluish, and his breathing was labored; his condition was not good.

Lanqin cried incessantly, holding Hongli's hand tenderly and breathing on it repeatedly: "Hongli, wake up... please don't scare your mother... wake up..."

The Fourth Prince helped Lanqin up and found that she was trembling uncontrollably. He blamed himself and said, "It's all because I'm too late. Qin'er, you must be very anxious. I will definitely save Hongli..."

Lanqin looked at the Fourth Prince expectantly, her voice trembling as she said, "Your Majesty, I cannot lose Hongli, I cannot lose Hongli..."

The imperial physician hurriedly replied to the Fourth Prince, "Your Majesty, as long as we find out what poison the prince has been poisoned with, I will be able to prescribe the appropriate medicine..."

Upon hearing this, Lanqin grabbed Fourth Master's sleeve, choking back tears as she tried to speak to him. Fourth Master patted Lanqin comfortingly, signaling her to calm down.

The Fourth Prince coldly turned to the servant and said, "Go and investigate for me. Investigate the entire Princes' quarters and find the source of Hongli's poisoning..."

After searching for a long time, the servant returned to report that the prince's quarters had been thoroughly searched, but no abnormalities were found. Lanqin's hopes were instantly dashed.

The Fourth Prince suddenly remembered the incident of Hong Sheng's poisoning and said, "Go check the Imperial Kitchen..."

Lanqin suddenly realized that Fucha had been plotting to poison Hongsheng, but now that she was in the Cold Palace, she could no longer harm Hongli.