M. L. Buchman 
Guardian of the Heart [EPUB ebook] 

-a Night Stalkers CSAR romance novella-
The most dangerous mission of all…CSAR. Combat Search and Rescue.
Noreen Wallace cares about only two things: saving lives, and her family. Following in her big brother’s path, she flies into battle armed with a stretcher and a med kit.
Xavier Jones only family is the Army. No point in believing anything more exists—until he saves the Guardian of the Heart.