Raising Steam by Terry Pratchett

I’d not read his last Diskworld novel yet, and figured a little light reading was what the doctor ordered.

Creative but uncontrolled—I’m afraid he was slipping. Characters get preachy, and inconsistent, and Pratchett tried to explain too much. It violates the Chekhov’s Gun principle “If in the first act you have hung a pistol on the wall, then in the following one it should be fired. Otherwise don't put it there.” Don’t bother.