Night Over Water by Ken Follett

Set against the backdrop of the onset of World War II, the novel follows a diverse group of passengers aboard the luxurious transatlantic flying boat, the Pan American Clipper, on its final flight from England to the United States. As tensions rise both in the world and among the passengers, secrets unravel and personal dramas unfold, including espionage, romance, and betrayal. The story intricately weaves together the lives of aristocrats, refugees, and criminals, highlighting their struggles and desires as they navigate the uncertainty of a world on the brink of war.