Cowgirl Miracle by Em Petrova

It takes a lot to impress a Dalton girl.

Family feud or deep, dark secret? Jessamine Dalton is determined to uncover the reason why one branch of the family tree broke off and headed north to Colorado decades ago. Hitting the road to visit their distant relations seems perfect—she’ll get away from her interfering sisters, and making a proper family tree will double as a Christmas gift for the entire Dalton clan, right? Trouble is, Jessamine’s expected back in time for the festivities… and well, Colorado winters are unpredictable.
Holidays always depress Jake Strahan. While everybody else on the Blackburn Ranch enjoys Christmas cheer, he’s in the barn with the horses who understand him best. So when his fellow ranch hand Gracie asks a huge favor of him—to travel to Colorado and bring her sister home in time for Christmas Eve—he figures why not? He’s got nothin’ better to do.
Now that Jessamine finds herself trapped in the very tight confines of Jake’s truck, she’s got too much time to study the quiet, rugged man. And Jake knows a spirited filly when he sees one and knows better than to try to break her. But maybe it’s the magical snow falling that has him thinking things that are far too sweet for a rough man like him. And maybe Jessamine isn’t really looking back at him with twinkle lights in her eyes.