As ponygirl trainers, the Master and the Mistress are ideally matched: she, with the steely will to handle big, strong ponies of power and character, and train them to bear loads and riders; he, unmatched in his skill at breaking younger, daintier things, lashing them with measured relish as he transforms them into carriage and show ponies beyond compare. All agree that the stables of the Master and the Mistress are home to some of the finest ponies in the county.

And yet, though the ponies they train for sale turn a tidy profit, and both take a craftsman's satisfaction in the creation of such glittering diamonds of purpose and practicality from the basest materials, the Master and the Mistress never allow business to come before pleasure...