The Gunslinger's Vow — Amy Sandas

Three runaway brides
Determined to escape their fates
Flee West to find freedom that can only be had in a cowboy's arms...

Alexandra Brighton spent the last five years in Boston, erasing all evidence of the wild frontier girl she used to be. Before she settles, she's determined to visit her childhood home one final time. But when she finds herself stranded far from civilization, she has no choice but to trust her safety to the tall, dark and decidedly dangerous bounty hunter, Malcolm Kincaid.

Now that Malcolm finally has the location of his brother's killer, he has no intention of wasting time protecting a pampered Eastern lady. But something about Alexandra speaks to the heart he long thought frozen--and her slow transformation from proper miss to wild-eyed beauty leaves him shaken. By the time they reach Montana, Malcolm must decide if seeking justice for past wrongs is worth losing a future with the woman he never expected to need...