Racing Against Time by Suzanne Weyn
Wildwood Stables really is a place where dreams come true. All of Taylor's hard work with Prince Albert is finally paying off, and both she and the horse feel at home at Wildwood Stables. But spiled Plum Mason is still causing problems, overtraining her new horse, Shafir. Can Taylor and the other Wildwood girls protect Shafir from his reckless rider?