The Undead Are Fat at Night and Thin in the Day 僵尸夜肥晝瘦

俞蒼石先生云：凡僵尸夜出攫人者，貌多豐腴，與生人無異；晝開其棺，則枯瘦如人腊矣；焚之，有啾啾作聲者。

Mr Yu Cangshi tells, “The undead all go out at night to seize and eat people, gradually becoming exceedingly plump in appearance, but they are unlike the living; when their coffins are opened in daylight they are emaciated like human jerky, and they make a chirping sound.

Yuan Mei 袁枚, Wang Yingzhi 王英志 (ed.), Yuan Mei Quanji 袁枚全集 [The Collected Works of Yuan Mei] (Nanjing: Jiangsu Guji Chubanshe, 1993), Volume 4: Zi Bu Yu 子不語, juan 24, p. 495.