Japan marched into Hong Kong at the outbreak of the Pacific War on 8 December 1941. On the same day, Graham Heywood was captured by the invading Japanese near the border while carrying out duties for the Royal Observatory. He was held at various places in the New Territories before being transported to the military Prisoner-of-War camp in Sham Shui Po, Kowloon. The Japanese refused to allow Heywood and his colleague Leonard Starbuck to join the civilians at the Stanley internment camp. Heywood's illustrated diary records his three-and-a-half years of internment, telling a story of hardship, adversity, and survival of malnutrition and disease; as well as repeated hopes of liberation and disappointment. As he awaits the end of the war, his reflections upon freedom and imprisonment bring realisations about life and how to live it. "Accounts of life in the internment camp differed widely. One friend, an enthusiastic biologist, was full of his doings; he had grown champion vegetables, had seen all sort of rare birds (including vultures, after the corpses) and had run a successful yeast brewery. Altogether, he said, it had been a great experience ... a bit too long, perhaps, but not bad fun at all. Another ended up her account by saying 'Oh, Mr Heywood, it was hell on earth'. It all depended on their point of view." Heywood's highly positive attitude to life is food for thought for all of us today, in the midst of increasing consumerism but decreasing spiritual satisfaction. We have enjoyed freedom and an abundance of material wealth in the 70 years since the end of the Pacific War, but we may not always recognise our true good fortune.