When Dad Chambers brings a wild pinto mustang named Rebel home to Keystone Stables from the auction, Skye and Chad try their best to train the horse, but find Rebel doesn't want to be tamed. At the same time, a tough, pool-shooting gang member named Wanda Stallord has moved to the foster home. Skye feels God wants her to befriend Wanda, but the new girl wants nothing to do with her and starts causing havoc instead. With God's help, Skye reaches out to help both Rebel and Wanda.

Book three in the Keystone Stables fiction series---girls ages 10 and up Skye and Morgan have their hands full trying to share God's love and the preciousness of life with Tanya Bell, an African-American girl and a runaway who becomes a foster child in the Chambers' household. Tanya is a veteran shoplifter. But when one of the mares dies giving birth to a foal, Tanya is transformed as she takes responsibility for the foal.

This summer, Skye, Chad, and Morgan are planning on teaching four special needs children the art of riding and handling horses, and are especially excited to teach Katie Thomas, a girl who went blind in a car accident four years ago. Not only is Katie blind, but her parents are also getting divorced, something Katie blames on her loss of sight, making her bitter at the world, and at God. With the help of Skye, Katie's faith begins to grow, and she gets swept up in the world of the stable, soon becoming a skilled barrel racer.But as the summer goes on, her parent's divorce, and her disability, begin to wear on Katie, and she spends more time in her room with her talking computer. Through friendship, Skye tries her best to show Katie that her parents still love her, and that God is always there, no matter what happens.

Skye has been a foster girl as long as she can remember, and although she yearns to know something about her birth parents, there is no information available that tells her anything about her biological family. But while on a trip to South Carolina for a horse competition, Skye, by chance, meets an aunt she never knew she had, and Skye's quest to discover her roots begins. As her quest comes to completion, Skye gets the surprise of her life.

Skye finally accepts Christ, only to have her faith tested and deepened when her friend Sooze comes to live with her and is diagnosed with brain cancer. Through Skye's efforts, Sooze learns to care for and show horses and learns that true peace comes only by accepting Christ into her life.

Skye, Chad, and Morgan look forward to another summer at Keystone Stables, teaching special-needs children how to ride and handle horses. Skye is especially excited to help Katie Thomas, a girl who went blind in a car accident four years ago. As Skye shares God's love, Katie's faith begins to grow, and she gets swept up in the world of horses. After bonding with one horse, a brown and white pinto named Boomerang, Katie soon learns to barrel race and with Skye's help, deals with the threat of her parents' divorce.

Joey Klingerman, a visitor at Keystone Stables, has Down syndrome and is very outgoing and talkative. He immediately takes a special liking to Skye, constantly calling her his girlfriend. Embarrassed and furious, Skye begins to treat Joey harshly, but when Bucky, his buckskin horse, comes up lame right before the county fair, Skye is forced to make a big decision. Should she let Joey ride Champ, even though she promised herself no one but her would ever ride him? Skye has to listen to God's promptings in order to share his love with Joey.

In the fourth book of the series, Skye and her school friend Chad work at special needs Camp Tioga. When one of the campers, who is deaf, disappears on horseback, they lead the rescue to find him.