Inside The Lines (1915)

Set against the backdrop of World War I, the novel follows Allan Steele, a young American spy tasked with gathering intelligence on the German army. Initially reluctant, Steele becomes immersed in espionage, gaining the trust of German officers while grappling with his duty to his country. His mission becomes even more complicated when he falls in love with a French woman named Louise. The story delves into themes of love, duty, and patriotism, offering a captivating glimpse into the world of wartime espionage.