When twelve-year-old Emma Morgan's grandparents, Irene and Joseph, inherit Willow Creek in Ashbury, Georgia, she has plenty to explore at the old mansion. When Emma discovers she can see the spirit of a girl her own age, she becomes embroiled in a mystery that has plagued the children of Willow Creek for over a hundred years. What happened to the children? Why were they never found-dead or alive? And is the diary of a young girl who died many years...