At a picnic in the mountains in 1891, three children run into the forest to play and are never seen again. More than a hundred years later, Mogi Franklin and his sister, Jennifer, discover a series of clues that bring them to the brink of solving the mystery, only to be thwarted by a resort-building billionaire eager to sacrifice an entire town to build a playground for the rich. The Mogi Franklin Mystery Series features a new kind of twenty-first-century hero for Middle-Grade readers as the young adventurer uses his unique problem-solving skills to battle legends of the past while solving the mysteries of today.