This is the true story of a British soldier who marched willingly into Buna-Monowitz, the concentration camp known as Auschwitz III. In the summer of 1944, Denis Avey was being held in a POW labour camp nearby. He had heard of the brutality meted out to the prisoners there and was determined to witness what he could. He hatched a plan to swap places with a Jewish inmate and smuggled himself into a sector of the camp where he experienced at first-hand the cruelty of the Nazis. Astonishingly he survived and after his own long trek across central Europe he was repatriated to Britain. It’s a tale as gripping as it is moving and has taught me much more about a subject I thought I knew a lot about.