The City Watch needs MEN!
And they need all the help they can get, because someone in Ankh-Morpork has been getting dangerous ideas – about crowns and legendary swords, and destiny. And the problem with destiny is, of course, that she is not always careful where she points her finger.
One minute you might be minding your own business on a normal if not spectacular career path, the next you might be in the frame for the big job, like saving the world.
Another great Discworld novel by Terry Pratchett