Rattlesnake Rock by Angela Dorsey
Series: Horse Guardian, Book 7.
Approx. 36,160 words.
Published on July 11, 2011 by
Enchanted Pony Books.
Rosa is faced with a terrible choice. Senor Garcia has offered her a dream job and a mustang colt of her own. If she accepts, five of the twelve mustangs in the herd get to live, her parents keep their jobs, and her friend gets a new assistant. Almost everyone wins. Almost. Seven unwanted mustangs will be sent to slaughter. Can she let that happen? But what choice does she have?