Sitting in a hut at the bottom of his garden, surrounded by odd bits and pieces such as a suitcase (used as a footrest), his own hipbone (which he'd had replaced) and a heavy ball of metal foil (made from years' worth of chocolate wrappers), Roald Dahl wrote some of the world's best-loved stories including Charlie and the Chocolate Factory, The Twits, The Witches, The BFG, Fantastic Mr Fox, James and the Giant Peach and lots more.