The Tattooist of Auschwitz: is it ok to fictionalise the Holocaust?

Is it ever appropriate to fictionalise the Holocaust? That's a question highlighted by the controversies surrounding The Tattooist of Auschwitz, a 2018 novel by Heather Morris, which sold millions across the globe but also received criticism from some in the historical community for the way it represents the reality of Auschwitz. As a new TV adaptation arrives on Sky, Professor Richard J Evans speaks to Rob Attar about the book and the challenges facing all writers and film-makers seeking to tell stories about one of the darkest episodes in history.