Joanne Harris and Janice Hallett

Joanne Harris is the author of 22 novels, including Chocolat which was made into an Oscar-nominated movie. Her books have been published in over 50 countries and won a succession of British and international awards. Her latest novel is the compulsive A Narrow Door, the remains of a body unleash buried secrets in St Oswald’s School. Janice Hallett’s twisty debut The Appeal was the Sunday Times Crime Book of the Year and firmly established her as a writer to watch. Her bestselling new novel, The Twyford Code, is a fiendishly clever tale of a disgraced author, a missing schoolteacher and an ex-con desperate to solve a baffling, decades-old puzzle.