Season of ponies

From the hardcover book flap: The day began as June days are supposed to, in a burst of sunshine; but before noon, dark clouds were sweeping across the sky. And just before nightfall, a strange swirling ground fog, heavy and white, swept through the valley. It started out to be the day that Pamela was to leave Oak Farm, where she lived with her two aunts. It ended as the day she was left behind again, while her father went without her, as he had many times before. Nothing, Pamela felt, could relieve the gloom of such a day, not even the old amulet her father had given her. But then, out of the fog there came a boy--a boy with a flute and a herd of weirdly beautiful, misty-colored ponies. With them a summer began that changed everything for Pamela. For the ponies, so like the glass ponies on her shelf, and Ponyboy, a strange, wild companion, brought magic, mystery, and fearful adventure. A special book for those who love horses, and for those who dream of secret and stirring events.