Pratchett Terry: Sourcery (Discworld Novel #5)
Autor : Terry Pratchett, All this books and stuff, that isn't what it should all be about. What we need is real wizardry.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 ...a dál?