Its Phantom of the Opera Discworld style when an aspiring singer and parttime witch wins a part in the big city opera and quickly learns of a shadowyfigure haun... » 

Its Phantom of the Opera Discworld style when an aspiring singer and parttime witch wins a part in the big city opera and quickly learns of a shadowyfigure haunting the house. Now her sorceress companions Granny Weatherwax andNanny Ogg must come to her aid before the fat lady sings her last rites «