The Spiderwick Chronicles, based on the best-selling books by Tony DiTerlizzi and Holly Black, is a modern coming-of-age story combined with a fantasy-adventure as the Grace Family – twin brothers Jared and Simon, their sister Mallory and mother Helen – move into their dilapidated ancestral home and begin to unravel a dark mystery about their great-great uncle, who once discovered the secret and maybe foreboding faerie world existing parallel to their own.