On the morning of August 4th, 1944, Anne Frank’s life would change forever. Few of us can begin to imagine what was going through her mind as SS officer Karl Silberbauer and his two Dutch Nazi henchmen marched into the front doors of Amsterdam’s Prinsengracht 263. They were looking for the eight people who had been hiding there for the past two years, in the secret annex located at the back of the building. Known today as the site of the ‘Anne Frank house’, back then it was a warehouse for Opekta Ltd, a European pectin and spice company. It...