Barbara Harper-Nelson was once the nineteen-year-old girlfriend of twenty-two-year-old French airman Francis Usai, who served in the RAF Bomber Command. Amazingly, she still possesses the letters she received from this witty and amusing young Frenchman, exiled from his conquered country but still fighting for freedom and undertaking nightly missions into the horrendous firestorm that was the Battle of the Ruhr. Together with her own diaries, these...