'I thought: opera, how hard can it be? Songs. Pretty girls dancing. Nice scenery. Lots of people handing over cash. Got to be better than the cut-throat world of yoghurt, I thought. Now everwhere I go there's...' Death, to be precise. And plenty of it. In unpleasant variations. This isn't real life it s worse. This is 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 mask and evening ...