Elle James 
Cowboy Brigade [EPUB ebook] 

Agent Wade Coltrane, ex-Army Special Forces, has returned home to Freedom, Texas, for his next assignment: infiltrate the Long K Ranch and bust the owner for attempted murder. The obstacle: Lindsay Kemp, his high school sweetheart-and his target’s granddaughter.Wade never expected Lindsay to still be living on the struggling ranch, let alone be a single mother to precious twin girls. Each day he spends undercover only intensifies his lingering desire for Lindsay and rouses his protective instincts. And he’ll need them, for there’s a killer on the ranch, and he’s set his vengeful sights on Lindsay….