My first encounter with Charles Todd as an author was a hit! An Unmarked Grave is a "Bess Crawford Mystery" which means almost nothing to me as I've never read a Bess Crawford Mystery nor have I ever heard of them. But now I have and you can be sure I am on the lookout! This is a wonderful mystery set in 1918 - I loved the history AND the plot. Bess Crawford is a battlefield nurse that is drawn into a baffling mystery because people she worked closely with are now dying or being killed - she has to decide which. Because of Bess' family background and inability to leave a mystery alone, she is determined to get to the bottom of this rash of deaths. It was suspenseful and well-written - great World War I intrigue and history to boot!!