Just when it seemed the book had closed on the Spiderwick Chronicles, a new chapter begins far from the old-fashioned charm of New England. Under the hot Florida sun, Nick Vargas and his annoying new stepsister, Laurie, stumble upon the faerie world. A nixie asks for their help to save her sisters and before they know it, Nick and Laurie are outrunning giants, negotiating with mermaids, and battling a monster that's bigger than they'd ever imagined! Along with Nick's brother, Jules, and some familiar faces, the kids find themselves in a race to save not only themselves, but all of Florida!