Fumo Xiaowei Zhen Chun was slightly stunned, while Zuo Daoxing and Yu Yunhuang, who were confronting each other, exchanged glances. They had not noticed these dust particles before.
Previously, everyone's attention had been on the deceased chef and the several Neishi who had died from poisoning.
After the three of them left, Li Xuan dissected Fei Yuan's chest to examine the food in his stomach. All kinds of pastries inside were not digested, confirming that Fei Yuan had indeed consumed them about two hours ago.
Li Xuan conducted a poison test and found a potent toxin.
Then he asked, "Was there anyone else present at the scene besides Crown Prince? I need to inquire about the situation at the time of the incident."
"There were two Neijian accompanying the Crown Prince, as well as Neishi Xi Huaien, the head eunuch of the Ciqing Palace." Yu Yunhuang coldly replied, "They are all currently being detained in a room in Eastern Palace."