Once there was a farmer’s wife—I can’t tell you which one—who was a witch. Now these folks used to have a feast every Eve of St. Philip and St. James. As soon as they began to burn the brooms she couldn’t rest: go she must. So she stripped her clothes off, and, standing under the chimney, she anointed herself with some ointment. When she had finished, she said: “Fly, but don’t touch anything.” And away she flew in the twinkling of an eye. Yes, that was just how it was.

But the farmhand was watching all this from the stables, and he watched carefully w............