Ruth Galloway13 books in series
The Crossing Places Summary
The bones turn out to be two thousand years old, and DCI Harry Nelson, who called on Ruth for help, is disappointed. He'd hoped they would be the bones of a child called Lucy who's been missing for ten years; he's been getting letters about her ever since. Then a second girl goes missing and Nelson receives more letters.
Soon it becomes clear that Ruth is in grave danger from a killer who knows that her expert knowledge is being used to help the police with their enquiries.