The Assassin's Heart (Hostages, #3)

A web of lies. An assassination. A fake bride. Real feelings.
She was in the wrong place at the wrong time. Simple as that. I should pull the trigger. No witnesses. It's cleaner that way.
I keep her alive. Who knows why. She's everything I always wanted, and never deserved. But now she belongs to me. I need her obedience.
She needs to pretend to be my wife. If she can get me close to my target, I'll spare her life.
It's a dangerous game, but I've already won my prize.