All the imperial doctors in the Imperial Hospital and many coroners have verified that Zhuan'er was not assassinated but indeed died suddenly.
Prince An also sent people to investigate and there was no sign that anyone had entered Zhuan'er's room that night, nor were there any signs of outsiders visiting the Prince An's Mansion. Even the wet nurse was not involved.
However, the wet nurse and the maid who were in charge of Zhuan'er could not escape responsibility. They did not even know when Zhuan'er start vomiting blood.
Shangguan Wanru locked herself in her room for three days and three nights. No matter how much Prince An and the Princess consort advised, she would not come out. She just continued to play her flute without stopping.
She seemed determined to play the flute until the end of the world.
