The Xuyiji 續異記 "Continued records on extraordinary matters" is an early collection of stories compiled by an unknown author during the Southern and Northern Dynasties period 南北朝 (300~600). It is not recorded in ancient bibliographies but quoted in the encyclopedias Chuxueji 初學記, Bai-Kong liutie 白孔六帖, Taiping guangji 太平廣記, Taiping yulan 太平御覽 and Shilei fu zhu 事類賦注. It includes stories about strange events from the Han 漢 (206 BCE-220 CE)
to the Liang period 梁 (502-557), and it is therefore quite probable that it was compiled in the late Southern Dynasties period. The Republican writer Lu Xun 魯迅 assembled fragments of the Xuyiji in his reprint series Gu xiaoshuo gouchen 古小說鉤沉.
Source: Li Xueqin 李學勤, Lü Wenyu 呂文鬰 (1996). Siku da cidian 四庫大辭典, vol. 2, p. 2172. Changchun: Jilin daxue chubanshe.