Description: Sophie has lived in so many foster homes, she can hardly keep count. It isn't until she comes to Joel and Kalene's big ranch that she finally finds a home. Joel and Kalene treat her like a daughter, and even trust her to ride their most valuable Arabian mare, Aria. In spite of her fears, Sophie cannot help but hope this is forever.
Then she makes a horrible mistake and unwittingly puts Aria's life in danger. Afraid she will be sent away if her foster parents find out, Sophie conceals her mistake - and Aria - letting Joel and Kalene believe the horse has been stolen. Her elaborate plan to set everything right works, until disaster strikes.
When Sophie is hit by a car, she cannot tell her foster parents that Aria is alone in the desert. But without her, the valuable horse will surely die. Sophie is desperate until help appears from nowhere... But who is this mysterious girl who talks to horses and senses the evil danger that stalks them? Can Sophie trust her, when so much is at stake?