Yin Shu

Variations: Tien-schu, Tin-schu, Tyn-schu, Yn-schu


In Siberia, mammoth fossils were seen as the remains of giant mole-like creatures that lived and moved underground. These subterannean monsters tore up riverbanks as they tunneled, but died in broad daylight.

In China, numerous sources, including the treatise Ly-Ki, tell of the Yin Shu, the “Hidden Rodent” or “Hidden Mouse” that dwells in dark caves. The yin shu grows from the size of a buffalo to as big as an elephant in Manchurian manuscripts, but otherwise looks mouselike. It has a no tail (or a short tail), is dark in color, and has short legs, a short neck, and small eyes. Yin shu are dim-witted, slow, and extremely powerful, digging out caves in areas with the roots of the fu-kia plant. They have shown up when rivers flooded plains, and die instantly when exposed to sunlight.

Until recently, mammoth bones in drugstores were labeled as yin shu.


Buel, J. W. (1887) Sea and Land. Historical Publishing Company, Philadelphia.

Laufer, B. and Pelliot, P. (1913) Arabic and Chinese Trade in Walrus and Narwhal Ivory. T’Oung Pao, Second Series, v. 14, no. 3, pp. 315-370.

Pouchet, F. A. (1865) L’Univers. Librairie de L. Hachette et Cie, Paris.