A hilarious, touching and extraordinary fable from David Walliams, number one bestseller and fastest growing children's author in the country.Joe has a lot of reasons to be happy. About a billion of them, in fact. You see, Joe's rich. Really, really rich. Joe's got his own bowling alley, his own cinema, even his own butler who is also an orangutan. He's the wealthiest twelve-year-old in the land.But Joe isn't happy. Why not? Because he's got a billion pounds... and not a single friend. But then ...