A mythic stone that supposedly has magical powers, it is found in the head of a large toad. It supposedly can be used to detect poison by changing its color. It can also protect newborns and their mothers from the powers of fairies.
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...