Virginia Vaughan 
Deadly Christmas Duty [EPUB ebook] 

This Christmas could be her last…Unless Covert Operatives shield her Prosecutor and single mom Melinda Steele thought her nightmare ended when her abusive husband died, but now someone wants her dead by Christmas. Navy SEAL turned security operative Noah Cason needs her to get justice in his sister’s disappearance, but first he’ll have to keep her alive. And his mission shifts from difficult to almost impossible when Melinda reveals who she suspects is really after her.