Tiffany is a little girl still in mourning over the death of her beloved witch grandmother, when she learns that she is also witch. Tiffany then encounters the Wee Free Men, small people who love fighting, acting drunk, aren't too bright and have a serious case of Kleptomania. When her little brother is kidnapped by an evil queen, they go off on an adventure to distant wondrous lands and strange exotic dreams. 
 This is my second Terry Pratchett/Discworld book. The prose, word play and humour are what I've come to expect from him. The Wee Free Men have a Scottish like accent that I found more annoying trying to interpret than charming, but I did get the hang of it by about half way. 
 Personally I started to lose interest in the story about half way through. It is definitely aimed at a young audience and kids should have fun with it.