The Treacherous Dead: Historical mystery set in the lead up to World War 1 (Dr Margaret Demeray)

I had no idea that anyone was carrying on the same dirty little tricks after all this time. Now I do. But if I don't move faster, they'll get me, before I can get them.

How can a long dead traitor destroy the man who uncovered his crimes?

London Summer 1912. Busy with the pressures of work and new motherhood, Margaret Demeray wonders if she will ever be free to help Fox again. When she hears of an unlikely spy plot, she expects Fox to be incredulous, but something reminds him of a case from 1...