Wyrd Sisters continues the story of Granny Weatherwax, who we first met in the Discworld novel Equal Rites. In this book, Granny Weatherwax and Nanny Ogg have joined with another witch, Magrat, new to the Discworld novels, to form a coven. Magrat has some odd ideas of what witchcraft involves, such as rituals, candles, and herbs, but the other two humor her. We also get a visit from our old friend Death. We also get introduced to some new characters. The old ruler of the kingdom, Verence, was murdered and is stuck being a ghost, bound to the stones of the castle. Hwel is a playwright given the job of writing a play to make the current evil ruler and his wife look better in the eyes of the people. The witches get involved in the royal intrigue, despite wanting to not get involved in matters outside of the coven. The land is unhappy with the new ruler, and the witches know it. Wyrd Sisters abounds with references to Shakespeare, namely MacBeth. Filled with witty dialogue and amusing parodies, the Discworld novels keep getting better and better.