The Romance of the Red Triangle is a historical novel written by Arthur Keysall Yapp in 1918. The book is set during World War I and tells the story of a young British soldier named Jack who becomes involved with the YMCA (Young Men's Christian Association) and its efforts to provide support and aid to soldiers on the front lines. The Red Triangle is the symbol of the YMCA, and the book details the organization's work in providing everything from...