Ancient Legends, Mystic Charms, and Superstitions of Ireland: How to go Invisible

How to Go Invisible Get a raven's heart, split it open with a black-hafted knife; make three cuts and place a black bean in each cut. Then plant it, and when the beans sprout put one in your mouth and say-- "By virtue of Satan's heart, And by strength of my great art, I desire to be invisible." And so it will be as long as the bean is kept in the mouth.