Wild Ride to Heaven — Leander Watts

Something strange is out in the woods. Something Hannah has never seen before. Good or evil, she can't tell. But she knows she must go out and meet it.
Hannah lives in the lonely frontier backwoods. Her mother has abandoned her for reasons she can only guess. And her father spends all his time hunting for some mythical treasure she knows he'll never find. So for food and shelter and the warmth of a fire, Hannah must do all the work.
Then her father sells her to be a house servant and she is sent away. For a whole year she's condemned to work like a slave for the brutal, cruel Barrow brothers.
There, in the dead of night, she sees a strange white figure. And she begins a curious friendship and starts her adventure of escape, discovery, and reclaiming what is rightfully hers.