This is the fourteenth book in Terry Pratchett's series on the Discworld - a flat world, supported on the backs of four massive elephants riding on the back of a planet-sized turtle. Anything hilarious can happen here, and eventually does.
With Magrat's marriage to Verence, King of Lancre, coming up, what could possibly go wrong? Actually, a lot! The border between realities is getting thin, and someone is trying to come through - the elves. Everyone remembers elves - beautiful, regal, powerful, etc. - but what they don't remember is that they are also vicious, murderous and completely unscrupulous. But, the witches remember; they remember a time when men went out hunting and never returned, and when babies disappeared from cradles. And now it is up to Granny Weatherwax and Nanny Ogg, plus any help that they can recruit to save the (disc)world!
This is another *great* Terry Pratchett book, one of his best! I have been a fan of this author for a long time, and this book does not let you down. As is often the case in Discworld books, a couple of "regulars" put in an appearance (Archchancellor Ridcully, the Librarian, Casanunda the World's Second Greatest Lover, and of course DEATH), but this is definitely a witch book. This is a great story, one that will inexplicably keep you on the edge of your seat and rolling on the floor laughing, both at the same time! This is a great Discworld book, one that I highly recommend.