Tracie Peterson 
Touching the Sky (Land of the Lone Star Book #2) 

Romantic Adventure from Tracie Peterson! When Laura Marquardt first meets Brandon Reid, their encounter is anything but pleasant. But when the two are seated together at a dinner party, they soon find that they share similar interests–Laura desires to educate blacks, and Brandon, as a white officer over colored troops, eagerly supports her cause.When Laura’s sister, Carissa, marries her Confederate beau, Laura finds herself in a difficult situation when she overhears plots to kill Union soldiers. Though in her heart she feels she should share this information with Brandon, Laura fears she will betray her sister’s trust and possibly endanger her sister’s life. And when Brandon’s motives for pursuing her come into question, her heart is even more conflicted. Where is God leading her?