An unusual form of divination based on the observation of mice or rats (especially being overrun by them or devastation caused by them), or the sounds made by them. Usually an indicator of evil.
Readers, please enjoy this guest blog post by Sandra Kynes, author of several books, including The Herb Gardener's Essential Guide, Plant Magic, and the new Witches' Encyclopedia of Magical Plants, among many others.
Although a few old books...