Twelve-year-old Miranda Stevens is late for her parents' wedding because of an early-morning mishap while riding her beloved black stallion, Starlight. Her family has grown with the miraculous return of her father and the addition of two foster children who have been left in her mother's care. Miranda and her foster sister, Margot go with Margot's father for a birthday surprise that turns ominous. In an unexpected call for help, Miranda goes to Texas, is reunited with Starlight, and, through a not-so-wise escapade, learns that Mr. Taylor has secrets. He's subject to human frailties, after all, Miranda decides, as she gains greater understanding and compassion for him.