Travis Davis is interviewed by Jeff Circle about his new book 'One of Four', a World War I historical fiction account through the eyes of the unknown soldier. Travis explains that he wanted to write the book in a way that was respectful of the soldier in the Tomb of the Unknown Soldier, so the main character in the book has no characteristics other than being a man, married, and having a son. The story also explores the father-son relationship and how war affects families. Travis discusses how he used essential story elements like action, suspense, and mystery to make the book engaging. He also mentions that he plans to write another World War I historical fiction thriller in the future.