Las Cronicas Spiderwick dejan atras el encanto de Nueva Inglaterra y se van al Sur, buscando el sol caliente de Florida. Nicholas Vargas de once años solo piensa que su vida ha sido un desastre cuando su padre vuelve a casarse y se muda con su nueva esposa e hija. Pero ""una expedicion"" a un lago cercano enfrenta a Nick con un problema gigantesco: la rara especie que respira fuego. Entonces Nick; su hermanastra, Laurie; y su hermano mayor, Julian (una cara familiar del original Spiderwick) se preparan para encontrar el mejor modo de solucionar el problema antes de que la Florida quede cubierta totalmente por la niebla Nuevos personajes, nuevas aventuras. / The Spiderwick Chronicles leave the old-fashioned charm of New England far behind and head south for some fiendish faerie fun in the hot Florida sun. Eleven-year-old Nicholas Vargas only thinks his life has been turned upside down after his developer father remarries and moves his new wife and daughter into the soon-to-be completed Mangrove Hollow. But an ""expedition"" to a nearby lake turns up a little nixie with a giant problem - the huge, lumbering, fire-breathing variety - and it's up to Nick; his stepsister, Laurie; and his big brother, Julian (plus a familiar face from the original Spiderwick Chronicles) to figure out the best way to stop a host of rampaging giants before all of Florida goes up in smoke.