In the days when strange things used to happen in the world, and the devil himself used sometimes to walk about in it in a bare-faced fashion, he came to a very small town where he resolved to stay a while to play some of his tricks.
On the stone, at the dead hour of the night, might be discerned a female figure wrapped in a grey cloak. She was incessantly knock, knock, knocking, in a fruitless endeavour to split the impenetrable rock.
Spider's cousin, while hunting one morning, had discovered a wonderful stone that ground flour of its own accord. Not being a greedy man, he took away with him only enough for his family's needs.