A mysterious figure who is the subject of Qi Yanzhou's investigation. The Ghost Thief left a golden nanmu box containing the root of Lord De's descendants for Qi Yanzhou, apparently helping him gain leverage against Lord De. The Ghost Thief also drugged Xu Kang, likely because someone took a girl from him. Ye Chutang disguised herself as the Ghost Thief on this occasion. Qi Yanzhou had a portrait painted of him based on the girls' descriptions.
