In Wudu there was a man who transformed into a woman, beautiful and elegant. This woman was an elemental. The prince of Shu accepted her as a concubine, but she was not accustomed to the climate, so wished to leave. Her host, wishing to keep her, played songs from Dongping to cheer her up. Before long, however, she had passed away. The prince mourned her, and sent five strong fellows to Wudu, picking up earth to make a grave mound for his concubine. The earth mound covered several mu (a mu equals 6.67 acres), and rose seven zhang in height (about 25m), and upon it there was a stone mirror. Today this is Wudan, at the north edge of Chengdu.
Li Fang 李昉, et al., Taiping guangji 太平廣記 (Extensive Gleanings from the Era of Great Harmony), 10 vols (Beijing: Zhonghua shuju, 1961), viii, 359.2839:
 The character used here is jing 精, which carries a wide range of meanings, including ‘spirit’, ‘goblin’ and ‘demon’. Possibly overstating a distinction between gui 鬼 and jing, I had originally opted for ’demon’ here, but reconsidered this after the ever-helpful Ofer Waldman suggested that ‘spirit’ was less likely to be confused with the yao 妖 ‘demon’ of the chapter heading. After consulting Schafer’s translation of the Taiping guangji table of contents, I have decided (with reservations) to follow his ‘elemental’ reading for jing 精, in order to avoid involving a connotation of evil to the character. See Edward Schafer, ‘The Table of Contents of the “T’ai p’ing kuang chi”,’ CLEAR 2 (1980), 258-63 (262).