I sat in my study reading The Times. The news from Europe was not good: Adolf Hitler’s Third Reich was threatening to engulf Europe in war once again, less than twenty years after the end of The Great War of 1914-1918. I felt that my recent retirement as Headmaster at a very exclusive girls’ boarding school was unlikely to be as quiet and restful as I had hoped if it was to be overshadowed by the horrors of war, of which...