Night Watch Discworld Series, Book 29.

'The best Discworld book in the whole world ever. Until next time.' SFX The Discworld is very much like our own - if our own were to consist of a flat planet balanced on the back of four elephants which stand on the back of a giant turtle, that is . . . 'Don't put your trust in revolutions. They always come round again. That's why they're called revolutions. People die, and nothing changes.' For a policeman, there can be few things wor...