We're learn that elves on Discworld might be glamorous but they are very akin to a cat enjoying toying with a mouse. Granny Weatherwax, Nanny Ogg and Magrat Garlick have returned home to the small kingdom of Lancre. As they step back into their lives they discover that someone is letting the elves through to Discworld. Some wizards (and the Librarian!) from the Unseen University along with Casanunda enter the tale to attend a royal wedding.