Linda O. Johnston 
Guardian of Her Heart [EPUB ebook] 

SECRET GUARDIANHe’d been assigned to shadow Dianna Englander’s every move and keep the young widow safe from the murderer who killed her politician husband. Piece of cake if veteran cop Travis Bronson could convince the stubborn businesswoman to follow his orders. The scarred officer knew the price of carelessness and would do whatever it took to keep his beautiful charge alive-even if it meant spending days and nights together. But they were in more danger than either of them suspected, not just from unknown enemies intent on keeping Dianna quiet for good, but from a passion that knew no bounds….