"Ruth of the U. S. A." by Edwin Balmer is a novel written in the early 20th century, specifically around the end of World War I. The story centers on Ruth Alden, a young woman in Chicago navigating her way through the tumultuous atmosphere of war while harboring feelings for a soldier named Gerry Hull. As Ruth grapples with her mundane life working in real estate, her encounters with Gerry and the impact of the ongoing war lead her to contemplate her own role in the war effort. At the start of the book, Ruth awakens on an important day, anticipating the return of Gerry Hull from France. The opening chapters introduce readers to Ruth's feelings of admiration and guilt as she observes people around her, including a street beggar, while reflecting on the state of war and her longing to contribute. A series of unexpected events, including her impulsive purchase from the beggar, leads to her discovering a passport and a significant amount of money, setting the stage for a dramatic turn in her life. As she learns more about the identity of the passport holder, Ruth realizes she may have a vital role to play, possibly as a spy, which challenges her sense of duty and personal ambition amidst the chaos of a world at war. (This is an automatically generated summary.)