Fearless: a romantic thriller (Agents and Assassins #1)
Denise Wells

The man who holds my heart, Mack Murphy, is a federal agent trained to bring down people exactly like me. While he stalks bad guys, I send them to sleep with the fishes.
I keep what I do a secret. You could say that creates a bit of tension in our relationship. At least for me. Because, Mack? He doesn’t realize there’s a problem.
At least not yet.