The Opera House, Ankh-Morpork... a huge, rambling building, where innocent young sopranos are lured to their destiny by a strangely-familiar evil mastermind in a hideously-deformed evening dress... At least, he hopes so. But Granny Weatherwax, Discworld`s most famous witch, is in the audience. And she doesn`t hold with that sort of thing. So there`s going to be trouble (but nevertheless a good evening`s entertainment with murders you can really hum).