I Shall Wear Midnight

Sir Terry's four hundred and zillionth Discworld book, and the fourth starring Tiffany Aching, teenage witch, who doesn't quite come from the village I grew up in, except she does.
Let's be honest. Terry Pratchett is, and despite his embuggerance, always a reliable writer, even if from time to time he becomes a bit lazy. Usually this has been manifest in a joke so funny that it gets repeated for five books in a row. Yes, Igor, I'm looking at you, standing next to that chap that said wossernames every time he appeared.
If there's a laziness in the Tiffany books, the problem is that the plots are all pretty much identical. Something becomes too aware of Tiffany, starts threatening her and more importantly all she holds dear. The more senior witches can't or won't help, mainly because the kind of witch that needs help from anyone else isn't really a proper witch. She has allie s of course, especially the Mac Nac Feegle, rumbustious scottish gnones,but in the end it's not the allies that save the day, it's Tiff's inner strength. Deep down all these preternatural bullies true power is making her doubt herself, and she's too centered for that kind of thing to last.
To a degree though none of that matters, because Sir Terry is just too good a writer. His stories have never really been about the plots, it's the characters that count, and the characters remain vibrant and engaging. I want to read about them again, even if they're all ging to have the same plot.
And to a degree, there are clear signs that the stories are evolving. In the past Tiffany was sort of not quite a hanger on to Granny Weatherwax, spun off as a Young Adult series. Shorter, less demanding books, a heroine more likely to appeal to teenage girls than Commander Vimes and the city watch. These days the books have bulked out and they're presented pretty much as normal Discworld books.
Weatherwax and Ogg do appear here, but as cameos rather than supporting characters. Tiffany is starting to form her own coven, and after several books in which she was pining after the unsuitable son of the local baron, she now has a rather more suitable young man as a romantic lead. There's growth happening. More sense that while the book's quick summary is pretty like the last one, the characters are at least going places, and so remain worth following when they do.