Old Bones by Aaron Elkins

Forensic anthropologist Gideon Oliver is called to France to examine the remains of a resistance hero murdered during World War II. But when new evidence points to a modern crime concealed beneath decades of history, Gideon uncovers a web of deceit linking the past to the present — and a killer willing to do anything to keep those secrets buried.

Blending history, science, and psychological intrigue, Old Bones showcases Aaron Elkins at his finest — a master of precision, tension, and elegant storytelling.