Book excerpt: Flight Lieutenant Frank Clark died in a fiery collision between two Spitfires in the war-torn skies over Normandy. He left behind a one-year-old son and a thirteen-year-old brother. These two had an intense interest in trying to piece together the life and times of Frank Clark. However, there was no stash of photographs, no neat pile of letters, no log book, no diary. Then serendipity stepped in. A dozen photographs of Frank came to light and a cache of 50 letters written to his best friend. These letters revealed a colourful, flesh and blood person whose youth, vitality and good humour sprang out from the pages. This book is that story.