The second best of the Tiffany Aching series, mainly thanks to the wee free people (let's not forget the Kelda). It's not as grounded in Disc World social (or even geographical) dynamics as many of the Disc World series is & I think the 'for young adults' label is a bit of a cop-out. It didn't come across as being for specifically any age group; many 'seriously' adult readers despise fantasy anyway (don't know why - if it's all fiction anyway, why not let fly with witches & a war-like clan whose individuals are 6 inches high?). I find the Aching series a bit preachy, almost as if Pratchett was trading magic for philosophy. It still manages to come up with a plot (not as well paced as early Disc) and a reasonable array of characters.