After finding a mysterious, handmade field guide in the attic of the ramshackle old mansion they've just moved into, Jared; his twin brother, Simon; and their older sister Mallory, discover that there's a magical and maybe dangerous world existing parallel to our own, the world of faerie. The children want to share what they know, but the faeries will do everything possible to stop their secrets being revealed.

When Mallory and Jared attempt to rescue Simon from goblins, they use a magical stone which enables them to see things that are normally invisible.

After Mallory is kidnapped at her fencing meet, Jared and Simon search for her near an old quarry and find themselves amidst dwarves and goblins.

With goblins, trolls, and the house boggart all trying to get them, the Grace children turn to Great Aunt Lucinda for help.

Tips for faerie tracking, descriptions of fantastical creatures, and a review of all the creatures from the first five Spiderwick books are presented in this interactive companion and illustrated guide to the faerie world which includes fourteen mini-adventures.

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...

"This official companion book offers Spiderwick fans a chance to go behind the scenes of the fantastical movie"--P. [4] of cover.

Nick, Julie, Laurie, and their friends try to prevent a hydra from destroying Florida.