Watchers of Time — Charles Todd

In a marshy Norfolk backwater, a priest is brutally murdered after giving a dying man last rites. For Scotland Yard's Ian Rutledge, an ex-officer still 'recovering from the trauma of war, it looks to be a simple case. Yet the Inspector finds himself uncovering secrets that the local authorities would prefer not to see explored. Rutledge pares away layers of deception to piece together a chain of events that stretches from the brooding marshes to one of the greatest sea disasters in history--the sinking of the Titanic. Who is the mysterious woman who may have boarded that ship -- and who is the secretive woman who survived it? Only. Rutledge can answer those questions. . .and prevent a killer who'll stop at nothing from striking again.