Greta Zargo doesn't know it, but once again she is about to unwittingly and unknowingly save the world ... Intrepid young schoolgirl-turned-reporter Greta Zargo

Perfect for fans of Mr Gum and Roald Dahl, this highly successful and widely praised series featuring a boy, a circus and a lot of silliness is now available in

Perfect for fans of Mr Gum and Roald Dahl, this highly successful and widely praised series featuring a boy, a circus and a lot of silliness is now available in

Perfect for fans of Mr Gum and Roald Dahl, this highly successful and widely praised series featuring a boy, a circus and a lot of silliness is now available in

Nobody knew it at that moment, but only three things stood in the way of the complete destruction of the Earth: one elderly parrot; one eight-year-old spelling