Feet Of Clay: Terry Pratchett

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 . . .
`Sorry?` said Carrot. If it`s just a thing, how can it commit murder? A sword is a thing` - he drew his own sword; it made an almost silken sound - `and of course you can`t blame a sword if someone thrust it at you, sir.`
For Commander Vimes, Head of Ankh-Morpork City Watch, life consists of troubling times, linked together by...well, more troubling times.
Right now, it`s the latter. There`s a werewolf with pre-lunar tension in the city, and a dwarf with attitude and a golem who`s begun to think for itself, but that`s just ordinary trouble. The real problem is more puzzling - people are being murdered, but there`s no trace of anything alive having been at the crime scene.
So Vimes not only has to find out whodunit, but howdunit too. He`s not even sure what they dun. But soon as he knows what the questions are, he`s going to want some answers.