All is not well in the Ankh-Morpork Opera House. A ghost stalks the dark corridors, leaving strange letters for the management and ... killing people. Granny Weatherwax and Nanny Ogg, two Lancre witches, investigate, and are soon involved in all kinds of skulduggery, mayhem and ear-splittingly loud singing.Quirky and original characters, a labyrinthine plot and numerous witty one-liners make this a treat for Discworld fans and 'uninitiated' theatregoers alike.