After moving to Florida, an "expedition" to a nearby lake turns up a little nixie with a giant problem and it's up to Nick and his siblings to save the day.
As giants start waking up and destroying everything around their Florida neighborhood, Nick, Laurie, Jules, and Cindy work frantically to find a solution.
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.