For a fleeting instant maria thought she saw a little white horse with a flowing mane and tail, head raised, poised, halted in mid-flight, as though it had seen her and was glad. Maria Merryweather, a stranger to moonacre, is fascinated by the mysterious story of the long lost moon princess and the magical little white horse. before long she is determined to restore peace and happiness to the valley. And Maria usually gets her way ....