Book 1 Mystic and the Midnight Ride Stacy Gregg

Issie loves horses and is a member of the Ghevalier Point Pony Club, where she looks after her pony Mystic, trains for gymkhanas and hangs out with her best frends. When Issie is asked to train Blaze, an abandoned pony, her riding skills are put to the test. Can she tame the spirited new horses? And is Blaze really out if danger?