Collateral Damage. Hightower Security, #6

He'll protect her. Or die trying. Dr. Ava Morrison dedicates her free time to helping soldiers recover from the invisible wounds of war. But when a patient's flattery turns to obsession, she realizes too late that he isn't just in need of medical intervention-he's a loaded weapon, and she's the one in his sights. An isolated safe house.24/7 close protection. Silas Hightower swore he'd never work a "lone wolf" op again-not after the last one ended in blood.
But when a special forces-trained predator targets Ava and his team is out of reach, he's facing his worst-case scenario: alone, cut off, and shielding Ava from a hunter anticipating his every move. Guard her at all costs. Stay frosty. Don't fall in love.