The London House

Caroline Payne is a young woman in Boston whose day job gets interrupted by a call from Mat Hammond, an old college friend and historian. He’s found evidence that Caroline’s great-aunt—her namesake—didn’t die of polio as a child, but may have run off with a Nazi lover in 1941 and betrayed her country. Shaken and desperate to know the truth, Caroline heads to her family’s London house to dig into old letters and diaries. The story moves between Caroline’s present-day search and the lives of the Waite sisters in the interwar years, with scenes in London, World War II Britain, and glamorous 1930s Paris. It’s historical fiction with a light, clean romantic thread, focused more on family secrets, questions of loyalty, and how the past shapes the future than on any explicit content. If you like dual timelines, wartime mysteries, and character-driven stories, this is a good fit.