Discworld 19: Feet of Clay by Terry Pratchett

Premium mass market paperback format.  <-- appears to be out of print in this format

It's murder in Discworld! -- which ordinarily is no big deal. But what bothers Watch Commander Sir Sam Vimes is that the unusual deaths of three elderly Ankh-Morporkians do not bear the clean, efficient marks of the Assassins' Guild. An apparent lack of any motive is also quitetroubling. All Vimes has are some tracks of white clay and more of those bothersome "clue" things that only serve to muck up an investigation.

The anger of a fearful populace is already being dangerously channeled toward the city's small community of golems -- the mindless, absurdlyindustrious creatures of baked clay who can occasionally be found toiling in the city's factories. And certain highly placed personages are using the unrest as an excuse to resurrect a monarchy -- which would be bad enough even if the "king" they were grooming wasn't as empty-headed as your typical animated pottery.