Spiderwick Chronicles - The Field Guide

The Field Guide, the first book in the series, was published in May 2003. It opens in Maine, where nine-year-old twins Jared and Simon and their thirteen-year-old sister Mallory move into the decrepit Spiderwick Estate with their mother, Helen. On the first night, they discover a secret library with no doors leading to the rest of the house, and later find "Arthur Spiderwick's Field Guide to the Fantastical World Around You", an ancient hand-written book with information on faeries, hidden inside a chest in the attic. A brownie named Thimbletack, who has lived in the house for years, becomes angry with the Grace children when they destroy his nest inside the walls, and Jared is blamed for the ensuing havoc wrought by the brownie in retaliation. The book ends as the Grace children make amends with Thimbletack, who warns them that the book which they found was not meant to be in the hands of mortals.