Bodyguard Under Fire (Covert Cowboys, Inc. Book 3)

A Special Forces soldier meets the baby girl he never knew existed in this book in Elle James's Covert Cowboys, Inc. series. 

In a small town in Texas, everyone has a secret. Especially Chuck Bolton. Formerly a Special Forces soldier, Chuck now poses as a ranch handyman. His real mission? To protect his ex-fiancée, and the baby girl he never knew they'd created, from a malevolent masked man. 

Who is behind the attack—and what could they possibly want with Peggy Jane ("PJ") Franks? While the answer remains unclear, one thing is certain: Chuck never stopped loving PJ after she left him. And PJ, afraid of falling for the same man who broke her heart, doesn't want to repeat history. But that's the least of her worries when her enemy's motive is finally revealed.