When does George's Marvellous Medicine return?

George's Marvellous Medicine was written by Roald Dahl and illustrated by Quentin Blake in 1981. It features George Kranky, an eight-year-old boy who concocts his own miracle elixir to replace his tyrannical grandmother's regular prescription medicine. In 2003, it was listed at number 134 on the BBC's The Big Read poll.