Sylvia is fourteen but stuck with the body of an eight-year-old. This might not be such a problem if Grandpa hadn't promised to buy her the horse she's always wanted, but only when she grows as tall as his shoulder.
Sylvia has begun medical treatment for her genetic condition, but as usual not all goes according to plan. Sylvia must develop a deeper understanding of what "normal" means, and decide how important it is to get there.
Some people are unstoppable, even when saddled with family secrets and missing an X chromosome.
When Sylvia’s equestrian plans are reined in after she’s accused of dangerous riding, she realizes she’s been ignoring an important personal decision.