'There's a kind of magic in masks. Masks conceal one face, but they reveal another. The one that only comes out in darkness . . .'

The Opera House in Ankh-Morpork is home to music, theatrics and a harmless masked Ghost who lurks behind the scenes. But now a set of mysterious backstage murders may just stop the show.

Agnes Nitt has left her rural home of Lancre in the hopes of launching a successful singing career in the big city. The only problem is, she doesn't quite look the ...