published in 1988
The wind howled. Lightning stabbed at the earth erratically, like an inefficient assassin. Thunder rolled back and forth across the dark, rain-lashed hills.
The night was as black as the inside of a cat. It was the kind of night, you could believe, on which gods moved men as though they were pawns on the chessboard of fate. In the middle of this elemental storm a fire gleamed among the dripping furze bushes like the madness in a weasel’s eye. It illuminated three hunched figures. As the cauldron bubbled an eldritch voice shrieked: ‘When shall we three meet again?
There was a pause.
Finally another voice said, in for more ordinary tones: ‘Well, I can do next Tuesday’.
The opening paragraphs of Wyrd Sisters are a good indication of the rest of the book. This is MacBeth: Discworld style and the witches do not intend to stick to the script. That’s because Granny Weatherwax and Nanny Ogg are sensible witches and while the third member of the coven is a bit wet — as in, she actually believes in such things like covens — Magrat Garlick still has a steel core of good Lancrian common sense. They know better than to meddle in affairs (well, mostly) or dance with demons, never mind doing it skyclad. Yet when the king is murdered, his baby heir disappears and the usurper duke turns out not be just a bit evil, but actually uncaring about the land, they’re dragged into meddling against their own will.