 The series then became focused on Christina and Melanie and their horses Wonder's Star, Perfect Image, and Hi Jinx.Allie Avery, the final main character of "Thoroughbred", was introduced at the very end of the series as the daughter of Craig and Jilly Avery; Craig and Jilly had been removed from the series early on, but were brought back to make the introduction of a new character possible.Allie was both interested in eventing and racing, bringing together the two disciplines in the "Thoroughbred" series, although she ultimately decided upon becoming a jockey.