C1184 Why Should the Decoction be Urgent

It was already late at night, and most of the people in the Eastern Palace had already fallen asleep. However, Crown Prince Zhao Fan was still reading by night in the Eastern Palace's study room when he suddenly heard a light knock on the door.

The crown prince, Zhao Zhen, seemed to know who it was. Upon hearing the knocking sound, he put down the book in his hands and said to the person outside