At the end of Interesting Times, the wizards of the Unseen university return the barking dog to the Agetean empire, but, by some strange perchance, Rincewind is not reutned in it's place. instead, he gets moved to a thrid point on the disc, while something from there is moved onto the UU. Rincewind has been transported to the land of XXXX, the last continent. it is strange place, where the rain doesn't come and kangeroos roam the red desert. Rincewind survives by finding plates of sandwiches under rocks and generally being looked after by some deity while he invents vegemite drinks beer and inspires a very Australian folk tune. Meanwhile, the wizards are looking for a fellow professor, who should know all about the continent of XXXX, but he appears to be missing. Instead, they find a wormhole to a desert island where a mysterious God works wonders with tiny tools, but has yet to discovere how sex can aid reproduction. Due to an unfortunate accident, the wormhole closes and they travel to the continent of XXXX, which is still in the process of formation. they meet to local creator and, well, lets just say they cause havoc with a great many things. An interesting tale of culture shock that is not really set in Australia it just looks a lot like Oz does to us Poms.