Mystery at Shadow Pond Author:Mary C. Jane Why were Grandpa's latters so important to old Mr. Willey, to the strangers in the flash red car, and to the writer at Shadow Pond Park? Margie and her brother, Neale, know that the mysterios letters may help save their beach and feils-and, most important, their beloved horse. But the letters are gone! Who could have taken them? And why?