On Halloween night, Nelly Huggett's mother chases her through the woods, screaming venom, knife in hand. Gillian isn't a nice woman, but this is different. is different, strange, not herself. Nelly's father has been acting odd, too, and her brother... So Nelly does what any other precocious ten-year-old would do-she calls supernatural investigators and sisters Hyla and Lizeth Frontenac, in the hopes they might find out what happened to her family. But in the Huggett house, perched on the rugged Maine coast, the sisters discover that nothing is what it seems. Not the Huggetts and certainly not Nelly. Is she just spirited? Misunderstood? Or is she a liar, like everyone says? She is a dangerous foe, this little girl, with a devious imagination and a dark secret. A dangerous foe whose deception just might ensnare the sisters forever.