There was an eighth son of an eighth son. He was, quite naturally, a wizard. And there it should have ended.
However (for reasons we’d better not go into), he had seven sons. And then he had an eighth son… a wizard squared… a source of magic… a Sourcerer.
Sourcery sees the return of Rincewind and the Luggage as the Discworld faces its greatest – and funniest – challenge yet.