Sister Yun bursts into action knowing she will soon be identified as Pu Yang Ying's disciple. She is captured but not before wounding Ping Jing with her poisoned knife. Ping Jing sees the tattoo behind her neck and remembers where he has seen it before. He and Ping Zhang rush to the palace and inform Fei Zhan that one of Pu Yang Yang's disciples has infiltrated the Eastern Palace. The lives of the crown prince and Ping Jing hang in the balance. (Source: frankly at MyDramaList)