Starlight's Shooting Star begins with Miranda's first day of sixth grade and a new fresh-out-of-college teacher, Miss Hopper. Miranda doesn't like her much when she gives Miranda detention on the second day of school. Miranda hates anything that keeps her from Starlight! As the teacher slowly lose control of her classroom, parents begin to complain. When Miss Hopper takes the kids on a field trip and loses them inside a cave, the school board takes action.
More excitement is in store for the reader when Queen foals prematurely. Doctor Talbot is able to save the tiny filly's life. Chris and Miranda name her Shooting Star. To Miranda it seems that when a really important wish is made on this Shooting Star, it comes true.
Will her wish to make Starlight all her own ever come true? She is afraid it won't if he wins all the races Mr. Taylor has planned for him. The more he wins, the less say Miranda will have in what happens to him, and the less time she will be able to spend with him.
Mr Taylor hires a jockey and orders Miranda to teach him to win Starlight's acceptance and ride him as she does. Up to now, Starlight has refused to run for other jockeys, bucking them off, when they try to control him. Miranda likes being the only one Starlight will give his all to. She would like to have it stay that way, but what can she do?