The story opens weeks after the events of Interesting Times, in which Rincewind is magically transported to the continent of XXXX. Here he meets the magical kangaroo Scrappy, who explains to Rincewind that he is fated to bring back the rain, and end the eons-long drought.
Meanwhile, the senior wizards are trying to find a cure for the Librarian's magical malady, which causes him to transform into a native object, such as a book when near a library, whenever he sneezes. The Lecturer in Recent Runes suggests they interrogate Rincewind, as he once worked closely with the Librarian and seemed to know more about him than anyone else.