On the surface, it was Xuanyuan Yu's men who were investigating. However, the people from the 12 Divisions had also secretly contributed a lot.
Any suspicious medicinal ingredients that were found would be sent to Bun so that he could determine if it was the Heavenly Demon Poison.
The two groups of people had almost turned the entire Eldest Princess's residence upside down. Other than the Sky Demon Poison in the sachet on Shen Yu's body, there was no trace of the Sky Demon Poison anywhere else.
However, the secret guards found something shady in the Prince Consort's study and handed it to Yun Ran.
Yun Ran took the rolled-up painting and was slightly stunned.
"Why? Is there a problem with this painting?"
The secret guard could not say much about the painting on the scroll. He only replied in a low voice, "Miss Yun, open it yourself and take a look."
Was it that mysterious?
