Maskerade Corgi Audio Books 1996 ISBN 0-552-14426-6 An evening’s entertainment- with murders you can really hum… 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.