Danger Rising by Katie Reus

She’s going after what’s hers.
When Lana’s mom died, she was heartbroken. And when her mom’s business partner stole a priceless family heirloom, she vowed to get it back. The former thief has no problem taking what’s hers—except this time she ends up stealing more than she bargained for. Now Lana is in possession of dangerous information, the kind that could get her and anyone she cares about killed. When the man who broke her heart shows up offering to help—a man she thought was dead—she accepts. But only because she needs a trained partner to pull off her next job. And this time she’ll protect her heart at all costs. Teague already broke it once. She won’t let him in again, no matter how much he tempts her.

And it could get her killed.
Black Ops agent Teague has been watching Lana from the shadows for months. It killed him to keep his distance but he couldn’t let her know he was alive until he was sure it was safe—until his enemies were dead. But now she’s in grave danger and she’s his to protect, always has been. He never got over Lana; she’s in his blood. He’s just got to prove she can trust him—and convince her to give him a second chance. But first they’ll have to work together to stop a monster—and outrun the people who want them dead.