My sister Susan,” answered Peter shortly and gravely, “is no longer a friend of Narnia.”

Philip Pullman and JK Rowling have both criticised the way CS Lewis treated Susan at the end of the Narnia. Author David Marshall defends Lewis’ decision not to have Susan enter heaven in the ‘The Case for Aslan: Evidence for Jesus in the land of Narnia’ and writes his own imagined next steps for Susan in the real world.