When the Grace children go to stay at their Great Aunt Lucinda's worn Victorian house, they discover a field guide to fairies and other creatures and begin to have some unusual experiences.
The Grace children --13-year-old Mallory and 9-year-old twins Jared and Simon--who with their mother move into the dilapidated Spiderwick Estate only to quickly find themselves sucked into a dark and fascinating world of faeries.