Emmy has just moved from the country and had to leave her beloved horse behind, but Belle, an American quarter horse on which she takes riding lessons, helps her to get used to the noise and bustle of big city life.
Meg, Jill, and Annie, having learned a lot since they started taking riding lessons, decide to take a trail ride by themselves and realize they are not prepared for such an adventure.
Meg, spending the weekend with Annie at their friend Jill's house, learns a lesson about being careful after one of the girls forgets to latch a pony's stall and it escapes.
"Engaging images accompany information about the Spanish mustang. The combination of high-interest subject matter and narrative text is intended for students in grades 3 through 7"--Provided by publisher.