Unseen (Will Trent #7) Karin Slaughter

Special Agent Will Trent has something to hide.

Something he doesn't want Dr Sara Linton - the woman he loves - to find out.

He's gone undercover in Macon, Georgia and put his life at risk. And he knows Sara will never forgive him if she discovers the truth.

But when a young patrolman is shot and left for dead, Sara is forced to confront the past and a woman she hoped never to see again.

Without even knowing it, she becomes involved in the same case Will is working on.

And now both their lives are in danger...