Nikumizu

Nikuzumi are small and grublike, and approximately the size of a man's forefinger. They can be found in dark, moist crevasses, amongst rocks, in swamps or dead trees in the Shadowlands. They are worm-like, with a brittle shell that can be easily crushed. Their mouths are designed to pierce flesh, and if it manages to get beneath the skin it begins to feed on the muscle tissue of its victim. It moves through the body at a rate of approximately three inches a minute, causing extreme pain to the target. The use of the areas it has passed through become useless, and will be permanently so unless treated magically. (3E p. 282)