A major subset of the Discworld novels of Terry Pratchett involves the witches of Lancre. The three main witches introduced in 1988's Wyrd Sisters — crone Esme Weatherwax, mother Nanny Ogg and maiden Magrat Garlick — are a spoof on the Three Witches in Shakespeare's Macbeth, and a tongue-in-cheek reinterpretation of the Neopagans' Triple Goddess. The three witches are portrayed as more sensible and realistic than the often-foolish residents of the Discworld, and Granny Weatherwax "especially tends to give voice to the major themes of Pratchett's work."