Murder on the Lusitania book by Conrad Allen

September 1907. George Porter Dillman sets sail from Liverpool on the Lusitania's maiden voyage. Hired by the ship's captain to pose as a passenger, George is in fact a private detective for the Cunard Line. In the first days of his voyage, George only has to deal with a few petty crimes. But then an expensive piece of jewelry is reported stolen and a body is found. Working quickly to solve both crimes, George makes an unusual friend, Genevieve Masefield, and the two uncover secrets aboard the ship that prove explosive.