At Gaojun's request, Shouxue investigates the ghost possessing the jade earring. The owner of the earring was Ban Yingnü. Ten years ago, she was suspected of poisoning the Third Consort and hanged herself. In order to discover the truth about her death, Shouxue heads to the wash house with her lady-in-waiting Jiu-Jiu where Ban Yingnü's personal attendant Su Hongqiao resides. However, Su Hongqiao is unable to speak to them as her tongue has been cut out.

The ghost of a skylark visits Shouxue, which leads to her hearing the tale of the Skylark Princess and her tragic death.

Shouxue searches the storehouse for the ghost's gemstone, while Gaojun investigates the Raven Consort's secrets.

Yi Siha, a eunuch serving Feiyan Palace, visits Ye Ming Palace. He has seen the ghost of a boy holding a blue swallow feather and asks Shouxue to help him. During her investigation, Shouxue comes across Yi Siha being caned by some older eunuchs. When she stops the punishment, Yi Siha's mentor Kang Lan trembles with fear. In Shouxue's eyes he saw a horrifying monster.