Its the night before Hogswatch. & its too quiet. Where is the big jolly fat man? Why is Death creeping down chimneys & trying to say Ho Ho Ho? The darkest night of the year is getting a lot darker... Susan the gothic governess has got to sort it out by morning otherwise there wont be a morning. Ever again... The 20th Discworld novel is a festive feast of darkness & Death (but with jolly robins & tinsel too). As they say: Youd better watch out...