In the novel "The Haunted Monastery", on which this movie is based, Jade Mirror is the name of the dead, embalmed former abbot. In the movie, this name is given as that of Judge Dee's first wife. In the 16 Judge Dee books written by Robert van Gulik, Dee's first and second wives' names are never mentioned. His third wife is only mentioned by her family name, (Miss) Tsao, prior to her marriage to the magistrate. Her personal name is never given.