This is the first book in the Discworld series that really gives you a sense of what the series will become, because as well as being a hilarious adventure set in a bizarre fantasy world, it tackles real issues in our own world - namely, equal rights for women, and the arbitrary nature of gender roles. Consequently, it feels much more focused and satisfying than the previous two books. Good stuff.

This is the first book in the "witches" sub-series, and introduces the character Granny Weatherwax. Unfortunately I don't think we ever meet Esk again.