Peter Mathews found a Vietnamese soldier's diary while he was serving with the U.S. Army 1st Cavalry Division during the Vietnam War. The diary was elegant, with poetry and drawings etched amid the entries. The American soldier had found it on a battlefield. For his job, for wartime strategy, the thing to do would have been to hand it over to military intelligence. But the book was too beautiful to hand over. So he had kept it, hidden away, for more than 50 years. In the space of so much time, the American vet had come to realize the book was not too beautiful to hand over. It was too beautiful to keep. So his journey to find the author’s family began.