Some Kind of Hero by Suzanne Brockmann

Navy men don’t come tougher than Lieutenant Peter Greene. Every day he whips hotshot SEAL wannabes into elite fighters. So why can’t he handle one fifteen-year-old girl? His ex’s death left him a single dad overnight, and very unprepared. Though he can’t relate to an angsty teen, he can at least keep Maddie safe—until the day she disappears. Though Pete’s lacking in fatherly intuition, his instinct for detecting danger is razor sharp. Maddie’s in trouble. Now he needs the Troubleshooters team at his back, along with an unconventional ally.

Romance writer Shayla Whitman never expected to be drawn into a real-world thriller—or to meet a hero who makes her pulse pound. Action on the page is one thing. Actually living it is another story. Shay’s not as bold as her heroines, but she’s a mother. She sees the panic in her new neighbor’s usually fearless blue eyes—and knows there’s no greater terror for a parent than having a child at risk. It’s an ordeal Shay won’t let Pete face alone. She’s no highly trained operative, but she’s smart, resourceful, and knows what makes teenagers tick.

Still, working alongside Pete has its own perils—like letting the heat between them rise out of control. Intimate emotions could mean dangerous, even deadly, consequences for their mission. No matter what, they must be on top of their game, and playing for keeps . . . or else Pete’s daughter may be gone for good.