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 their own--the world of faerie.

The more fantastical secrets they uncover, the more attention they draw, until the siblings are drawn into conflict with goblins, dwarves, elves, and more.

This action-packed paperback collection includes:
The Field Guide
The Seeing Stone
Lucinda's Secret
The Ironwood Tree
The Wrath of Mulgarath
The Nixie's Song
A Giant Problem
The Wyrm King