Hannah Lewis was just seven years old when she watched a Nazi death squad execute her mother. Her family was rounded up by Adolf Hitler's forces and forced to march to a labour camp in the Polish village of Adampol in 1943. Hannah's father Adam escaped the camp to join the partisans - a Jewish resistance movement during the Second World War - and returned to warn of an imminent Nazi raid, the night before his wife's death. Hannah's mother Haya refused to flee, fearing her daughter - who had fallen ill with a high temperature and suspected typhoid -...