Terry Pratchett's story writing continues to grow in skill, with an even more compelling story while still maintaining the trademark humor. A Sourcerer - a wizard who's a source of magic, and vastly more powerful - appears in Discword, and threatens the balance of the world. Of course, Rincewind gets involved, and expected hijinks ensue.

I found myself wanting to read it to see what happens in the story as much as the humor (unlike the earlier Rincewind novels, which was only the former). Excellent book.