Guards! Guards!

Guards! Guards! - Terry Pratchett ¡Guardias!¡Guardias! reseña en español ----> Click aquí

I can't rate any Pratchett novel with less than five stars, sorry. I had a great time reading this book, it was wonderful to get to know the situation of the city guard before the arrival of Carrot, the human raised by dwarfs.
Another marvellous thing on this book was the city's librarian: a monkey which gets really pissed off when a mysterious (and really stupid) secret society steals a book in order to summon a dragon and overthrow the city's government.

This is a great book to start reading Pratchett's discworld series, he somehow combines a bunch of ridiculous and extremely funny situations to create a wonderful and coherent story, with a great message that criticise the reality.