Ride the River: The Sacketts (Audiobook) by Louis L'Amour, Jamie Rose

Alone in the big city, a fierce young frontierswoman must outsmart a dangerous con man before she can stake her claim to the family fortune.
 
Sixteen-year-old Echo Sackett has never been far from her Tennessee home—until she makes the long trek to Philadelphia to collect her inheritance. In the wilderness Echo can take care of herself as well as any man, but she never imagined the challenge that awaits: a crooked city lawyer who intends to take advantage of her by any means necessary. Echo will need all of her wits to best this scoundrel and make it back home in one piece.